Invited talk /Conference presentations

INVITED TALK/SEMINAR

1. Coherent optical computing with coupled lasers

International Conference on Emerging Trends in Complex Systems, Advanced Materials and Photonics (IC-ETCMP-2025), Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh, 27-28 Febryary 2025.

2. Optical computing with a laser simulator

1 st International Conference on Emerging Trends in Optical Technologies (ETOT-I), SRM University-AP, Andhra Pradesh, 02-04 January, 2025.

3. Phase locking of large networks of coupled lasers

University of Lucknow OPTICA Student Chapter, University of Lucknow, Lucknow, 1 October 2024.

4. Optical computing with a laser simulator

School of Forensic Science, National Forensic Science University, Gandhinagar, Gujarat, 27 September 2024. 

5. Optical computing with a laser simulator

Annual International "Student Conference on Optics and Photonics (SCOP-2024)," Physical Research Laboratory, Ahmedabad, Gujrat, India, 25-25 September 2024.

6. Network of coupled lasers and its applications

5th Anniversary International Conference of NSP FOTONIKA-LV "Quantum Science, Space Sciences and Technologies - PHOTONICS RIGA 2023", Riga, Latvia, 20-21 April 2023.

7. Rapid laser solver for computationally hard problems 

Symposium on Light-matter interaction, Quantum Photonics and Quantum Information, IIT Delhi, Delhi, India, 25 February 2023.

8. Laser Technology and it's applications [National webinar]

Gujranwala Guru Nanak Khalsa College, Ludhiana, Punjab, India, 20 February 2023.

9. Optical Computing with a laser simulator

Laboratoire Lumière, Matière et Interfaces (LuMIn), University Paris Saclay, Gif Sur Yvette, France, 14 September 2022.

10. Large network of coupled lasers

DST STUTI Programme, Department of Physics, University of Lucknow, 12 August 2022.

11. Phase locking of a large network of coupled lasers

Sri Sivasubramaniya Nadar College of Engineering Kalavakkam-603110, Chennai, India, 12 May 2022.

12. Coherent optical computing with coupled lasers

Centre for Quantum Information, Communication and Computing, Indian Institue of Technology Madras, Chennai, India, 11 February 2022.

13. Optical sources and their applications II

School of Forensic Science, National Forensic Science University, Gandhinagar, Gujrat, 24 January 2022.

14. Optical sources and their applications I

School of Forensic Science, National Forensic Science University, Gandhinagar, Gujrat, 17 January 2022.

15. Coherent optical computing with phase locked lasers

Department of Physics, Babasaheb Ambedkar University, Lucknow, Uttar Pradesh 226025, 22 November 2021.

16. Coherent optical computing with phase locked lasers
    A. P. J. Abdul Kalam Faculty Lecture Series, Indian Institute of Technology Ropar, Rupnagar, Punjab, India, 19 May 2021.

17. Phase locking of large network of lasers
    Department of Engineering and Physical Sciences, Institute of Advanced Research, Gandhinagar, Gujrat, India, 24 December 2020.

18. Optical sources and their applications
    Department of Engineering and Physical Sciences, Institute of Advanced Research, Gandhinagar, Gujrat, India, 23 December 2020.

19. Coherent optical computing with coupled lasers
    National conference on Applied Physics & Mathematics (NCAPM-2020), NIT Manipur, Manipur, India, December 19-20, 2020.

20. Solving computationally hard problems with coupled lasers
    Faculty development program on “Current trends in physical sciences”, organized by Dr. A.P.J. Abdul Kalam Technical University, UP, Lucknow & Indian Association of Physics teachers RC-4 (U.P.) in association with Christ Church College Kanpur, PSIT Kanpur and FGIET Raebareli, UP, India, July 22-28, 2020.

21. Optical sources and their applications
    Live international webinar organized by “QUBIT” the Physics Society, Bhaskaracharya College of Applied Sciences, University of Delhi, India, 28 May 2020.

22. Lasers with degenerate cavities and their applications
    International Symposium on Photonics and Plasmonics (ISPP-2019), Department of Physics, Central University of Rajasthan, Ajmer, Rajasthan, India, 23-24 September 2019.

23. Optical computing with network of coupled lasers
    Faculty development program on “Enabling Technologies for Wireless & Optical Networks,” Guru Nanak Dev Engineering College Ludhiana, 10-15 June 2019, Ludhiana, Punjab, India.

24. Phase locking of large network of coupled lasers
    Harish-Chandra Research Institute, Allahabad, Uttar Pradesh, India, 20 May 2019.

25. Phase locking of large network of coupled lasers
    Indian Institute of Information Technology Una, NIT-Campus, Hamirpur, Himachal Pradesh, India, 23 April 2019.

26. Simulating spin systems with coupled lasers
    XLIM Research Institute, University of Limoges, Limoges, France, 28 August 2018.

27. Simulating XY spin systems with coupled laser networks
    International Conference on Laser, Optics and Photonics, Paris, France, 23-24 August 2018.

28. Degenerate cavity lasers and their applications
    International Conference on Laser, Optics and Photonics, Paris, France, 23-24 August 2018.

29. Noise phase locking in a single-frequency VECSEL
    Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel, 11 Novemebr 2014.

CONFERENCE PRESENTATIONS:

2025

1. Probing collective behavior of active particles using laser speckles – [Best Poster Award]

Ayushi Sood, Pratibha Gangwar, Vishwajeet Mehandia , and Vishwa Pal

PHYCON-25, The National Physics Conference, Department of Physics, IIT Ropar, India, 21-22 March, 2025.

2. Spatiotemporal solition in a parabolic multimode fiber  – [Oral]

Love Kumar Sharma, and Vishwa Pal

PHYCON-25, The National Physics Conference, Department of Physics, IIT Ropar, India, 21-22 March, 2025.

3. Dynamics of topological defects in one-dimensional coupled laser array  – [Poster]

Rajneesh Fulara, and Vishwa Pal

PHYCON-25, The National Physics Conference, Department of Physics, IIT Ropar, India, 21-22 March, 2025.

4. Generation of high-power asymmetric optical vortices – [Poster]

Aditya Narayana jena, and Vishwa Pal

PHYCON-25, The National Physics Conference, Department of Physics, IIT Ropar, India, 21-22 March, 2025.

5. Asymmetric vortex beam formation using discrete optical vortices – [Poster]

Aditya Narayana jena, and Vishwa Pal

DEA-BRNS National Laser Symposium (NLS-33), Medi-caps University, Indore, India, 6-9 March, 2025.

6. Dynamics of topological defects in 1D coupled laser array – [Poster]

Rajneesh Fulara, and Vishwa Pal

DEA-BRNS National Laser Symposium (NLS-33), Medi-caps University, Indore, India, 6-9 March, 2025.

7. Spatiotemporal soliton and its characteristics in a graded index multimode fiber– [Poster]

Love Kumar Sharma, and Vishwa Pal

DEA-BRNS National Laser Symposium (NLS-33), Medi-caps University, Indore, India, 6-9 March, 2025.

2024

1. Non-symmetrical vortex beam shaping in VECSEL laser arrays – [Poster]

Ilan Audoin, Sopfy Karuseichyk, Fabien Bretenaker, and Vishwa Pal

16th International Conference on Fiber Optics and Photonics 2024 (PHOTONICS-2024), IIT Kharagpur, India, 12-15 December, 2024.

2.  Focused Optical Vortices with a large depth-of-focus - [Oral]

Anita Kumari, Vasu Dev, Tina Hayward, Rajesh Menon, and Vishwa Pal

XLVII OSI Symposium: International Conference on Advances in Optics and Photonics Instrumentation (OPTOIn-2024), CSIR-Central Scientific Instruments Organization, Chandigarh, 23-25 October, 2024.

3. Generation of high-power multiple discrete vortices - [Poster]

Aditya Narayana Jena, and Vishwa Pal

XLVII OSI Symposium: International Conference on Advances in Optics and Photonics Instrumentation (OPTOIn-2024), CSIR-Central Scientific Instruments Organization, Chandigarh, 23-25 October, 2024.

4. Abrupt autofocusing and self-healing of circular Airy derivative beams - [Best Poster Award]

Anita Kumari, Vasu Dev, and Vishwa Pal

Physics Day, Department of Physics, Indian Institute of Technology Ropar, India, 16 March 2024.

5. Beam self-cleaning in a graded index multimode fiber under different conditions with anomalous dispersion

Love Kumar Sharma, and Vishwa Pal

Physics Day, Department of Physics, Indian Institute of Technology Ropar, India, 16 March 2024.

6. Novel method for identifying topological charge of discrete optical vortices – [Best Poster Award] 

Vasu Dev, and Vishwa Pal

32nd DAE-BRNS National Laser Symposium (NLS-32), Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, India,  January 9 - 12, 2024.

7. Investigation of abrupt autofocusing and self-healing of obstructed circular Airy derivative beams – [Poster] 

Anita Kumari, and Vishwa Pal

32nd DAE-BRNS National Laser Symposium (NLS-32), Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, India,  January 9 - 12, 2024.

8. Kerr beam self-cleaning in a graded index multimode fiber under anamolous dispersion – [Poster] 

Love Kumar Sharma, and Vishwa Pal

32nd DAE-BRNS National Laser Symposium (NLS-32), Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, India,  January 9 - 12, 2024.

2023

1. Beam self-cleaning in multimode fiber under different conditions– [Poster] 

Love Kumar Sharma, and Vishwa Pal

XLVI OSI Symposium OPTIQ-2023, International Conference on Optics, Photonics and Quantum Information, Cochin University of Science and Technology, Cochin, Kerala,  India, 11-13 December 2023

2. Generation of optical vortex beams with large depth-of-focus– [Poster] 

Vasu Dev, Rajesh Menon, and Vishwa Pal

XLVI OSI Symposium OPTIQ-2023, International Conference on Optics, Photonics and Quantum Information, Cochin University of Science and Technology, Cochin, Kerala,  India, 11-13 December 2023

3. Identifying topological charge of discrete optical vortices–[Oral] 

Vasu Dev, and Vishwa Pal

XLVI OSI Symposium OPTIQ-2023, International Conference on Optics, Photonics and Quantum Information, Cochin University of Science and Technology, Cochin, Kerala,  India, 11-13 December 2023.

4. Abruptly autofocusing circular Airy derivative beams in free space and disorder media– [Poster] 

Anita Kumari, Vasu Dev, and Vishwa Pal

XLVI OSI Symposium OPTIQ-2023, International Conference on Optics, Photonics and Quantum Information, Cochin University of Science and Technology, Cochin, Kerala,  India, 11-13 December 2023.

5. Novel method for probing the magnitude and sign of topological charge of discrete optical vortices– [Best Poster Award]

Vasu Dev, and Vishwa Pal

ISRAPS 2023, Department of Physics, Indian Institute of Technology Ropar, India, 21 October 2023.

6. Circular Airy derivative beams in free space and turbulent media– [Poster]

Anita Kumari, Vasu Dev, and Vishwa Pal

ISRAPS 2023, Department of Physics, Indian Institute of Technology Ropar, India, 21 October 2023.

7. High-power orbital angular momentum modes obtained by phase-locking  lasers in a 1D ring array– [Best Oral Award]

Vasu Dev, and Vishwa Pal

PHOTONICS 2023, Indian Institute of Science (IISc) Bangalore, India, 5-8 July 2023.

8. Aberration laser beams with autofocusing, self-healing and controlled intensity distributions – [Oral]

Vasu Dev, Andra Naresh Kumar Reddy, and Vishwa Pal

PHOTONICS 2023, Indian Institute of Science (IISc) Bangalore, India, 5-8 July 2023.

9. Effect of amplitude-phase coupling on the formation of dissipative topological defetcs in coupled lasers – [Oral]

Sahil Sahoo, Sopfy Karuseichyk, Fabien Bretenaker, and Vishwa Pal

PHOTONICS 2023,  Indian Institute of Science (IISc) Bangalore, India, 5-8 July 2023.

10. Diffraction coupling of class-A VECSEL arrays: experiment and model – [Oral]

Sopfy Karuseichyk, Sahil Sahoo, Vishwa Pal, Isabelle Sagnes, and Fabien Bretenaker

PHOTONICS 2023,  Indian Institute of Science (IISc) Bangalore, India, 5-8 July 2023.

11. Circular Airy derivative beams and their self-healing characteristics – [Poster]

Anita Kumari, Vasu Dev, and Vishwa Pal

PHOTONICS 2023,  Indian Institute of Science (IISc) Bangalore, India, 5-8 July 2023.

12. Noise correlations in  phase-locked VECSEL array – [Poster]

Sopfy Karuseichyk, Vishwa Pal, Isabelle Sagnes, and Fabien Bretenaker

CLEO/Europe-EQEC 2023, Munich, Germany, 26-30 June 2023.

13. Aberration laser beams with propagation invariant characteristics – [Poster]

Vasu Dev, Andra Naresh K Reddy, Sachleen Singh, and Vishwa Pal

5th Anniversary International Conference of NSP FOTONIKA-LV "Quantum Sciences, Space Sciences and Technologies - PHOTONICS RIGA 2023", Riga, Latvia, 20-21 April 2023.

14. Generating high-power densities by suppressing side-lobe in the phase-locked lasers – [Poster]

Vasu Dev, and Vishwa Pal

Physics Day, Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, India, 4 March 2023.

15. Effect of amplitude-phase coupling on the formation of dissipative topological defects in a network of coupled lasers –[Poster]

Sahil Sahoo, and Vishwa Pal

Physics Day, Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, India, 4 March 2023.

16. Autofocusing and self-healing of circular Airy derivative beams – [Poster]

Anita Kumari, Vasu Dev, and Vishwa Pal

Physics Day, Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, India, 4 March 2023.

17. Noise of coupled lasers in a degenerate cavity VECSEL (Experimental study) –  [Poster]

S. Karuseichyk, V. Pal, and F. Bretenaker

French-Israel Symposium on Nonlinear & Quantum Optics (FRISNO 16), Ein-Gedi, Israel, 15-19 January 2023

18. Noise correlations in a degenerate cavity VECSEL (Theoretical study)–  [Poster]

S. Karuseichyk, V. Pal, and F. Bretenaker

French-Israel Symposium on Nonlinear & Quantum Optics (FRISNO 16), Ein-Gedi, Israel, 15-19 January 2023

2022

1. Generation of spatially controlled high-energy density regions with asymmetric aberration laser beams –  [Poster]

S. Singh, V. Dev, and V. Pal

DAE-BRNS National Laser Symposium (NLS-31), Indian Institute of Technology  Kharagpur, West Bengal-721302,  3-6 December  2022.

2. High power tightly focused output beam from phase-locked lasers  –  [Poster]

V. Dev, and V. Pal

DAE-BRNS National Laser Symposium (NLS-31), Indian Institute of Technology  Kharagpur, West Bengal-721302,  3-6 December  2022.

3. Enhanced output power-density by sidelobe suppression of phase locked-lasers –  [Poster] 

V. Dev, A. N. K. Reddy, and V. Pal

Frontiers in Optics + Laser Science (FiO LS 2022), Joseph A. Floreano Rochester Riverside Convention Center, Rochester, New York, 16-20 October 2022.

4. Propagation and self-healing properties of autofocused aberration laser beams in turbulent media – [Best Poster Award]

V. Dev, A. N. K. Reddy, A. V. Ustinov, S. N. Khonina, and V. Pal

SCOP 2022, 7th Student Conference on Optics & Photonics, Physical Research Laboratory, Ahmedabad, Gujrat, 28-30 September 2022.

5. Digitally controlled multimode laser for high-resolution, robust beam shaping – [Oral]

S. Mahler, C. Tradonsky, V. Pal, A. A. Friesem, and N. Davidson

SPIE Optics + Photonics, San Diego, California, United States, 21-25 August 2022.

6. High-power discrete vortex with phase locked lasers  – [Invited talk]
   V. Dev, and V. Pal 

20th International Conference Laser Optics (ICLO 2022), St. Petersburg, Russia, 20-24 June 2022. 

7. Autofocused asymmetric aberration laser beams  – [Oral]
   S. Singh, V. Dev, and V. Pal 

20th International Conference Laser Optics (ICLO 2022), St. Petersburg, Russia, 20-24 June 2022.

8. Generation of discrete vortex with phase-locked lasers – [Poster]
   V. Dev, and V. Pal 

Virtual online workshop - Light-matter interactions in low dimensional and topological photonic materials, IISc Banglore, India, 27-28 Jan 2022 and 31 Jan-01 Feb 2022. 

2021

1. Propagation invariant features of aberration laser beams in a turbulent media – [Poster]
   V. Dev, A. N. K. Reddy, A. V. Ustinov, S. N. Khonina, and V. Pal
   Frontier in Optics and Laser Science (FiO+LS 2021), Washington DC, USA, 1-4 November 2021.

2019

1. Design of diffractive optical elements for shaping the laser intensity distribution – [Poster]
   V. Dev, A. N. K. Reddy, and V. Pal
   International Conference on Optics & Electro-Optics (ICOL-2019), XLIII Symposium of Optical Society of India, IRDE, Dehradun, Uttarakhand, India, 19-22 October 2019.

2. Taoloring laser beams with various spatial shapes and uniform intensity – [Best Poster Award]
   V. Dev, and V. Pal
   International Symposium on Photonics and Plasmonics (ISPP-2019), Department of Physics, Central University of Rajasthan, Ajmer, Rajasthan, India, 23-24 September 2019.

3.  Generation of laser beams with uniform intensity and different spatial shapes – [Poster]
   V. Dev, A. N. K. Reddy, and V. Pal
   Research Conclave 2019, Indian Institute of Technology Ropar, India, 14-15 May 2019.

4. Flat-top laser distributions over an extended region– [Poster]
   A. N. K. Reddy, V. Pal, S. Mahler, N. Davidson, and A. A. Friesem
   6th International School and Conference “Saint-Petersburg OPEN 2019” on Optoelectronics, Photonics, Engineering and Nanostructures, Saint Petersburg Academic University of the Russian Academy of Science, Russia, 22-25 April 2019.

2018

1.  Simulating XY spins with network of coupled lasers – [Oral]
   V. Pal, C. Tradonsky, S. Mahler, R. Chriki, A. A. Friesem, and N. Davidson
   International Conference on Fiber Optics and Photonics (PHOTONICS 2018), IIT Delhi, India, 12- 15 December 2018.

2. Diffractive elements for generating top-hat beams with extended depth of focus – [Poster]
   V. Pal, C. Tradonsky, R. Chriki, A. Brodsky, N. Kaplan, I. Grossinger, A. A. Friesem, and N. Davidson
   International Conference on Fiber Optics and Photonics (PHOTONICS 2018), IIT Delhi, India, 12- 15 December 2018.

3. Dynamics of dissipative defects in coupled phase oscillators – [Oral]
   S. Mahler, V. Pal, C. Tradonsky, R. Chriki, A. A. Friesem, and N. Davidson
   IPS 2018 (64th Annual meeting of the Israel Physical Society), Hebrew University of Jerusalem, Jerusalem, Israel, 9 December 2018.

2017

1. Investigation of topological defects with coupled lasers – [Poster]
   V. Pal, C. Tradonsky, R. Chriki, A. A. Friesem and N. Davidson
   The International Conference on Hybrid Photonics and Materials, Hotel Saint John, Mykonos, Greece, 25-29 September 2017.

2. Coupled laser networks: topological defects and relation to Kibble-Zurek mechanism – [Poster]
   V. Pal, C. Tradonsky, R. Chriki, A. A. Friesem and N. Davidson
   French-Israel Symposium on Non-linear & Quantum Optics (FRISNO 14), Ein-Gedi, Israel, 5-10 March 2017.

3. Teaching an old laser new tricks: Solving the inverse scattering problems rapidly – [Poster]
   C. Tradonsky, V. Pal, R. Chriki, G. Barach, A. A. Friesem and N. Davidson,
   French-Israel Symposium on Non-linear & Quantum Optics (FRISNO 14), Ein-Gedi, Israel, 5-10 March 2017.

4. Topological effects in coupled laser networks – [Oral]
   V. Pal, C. Tradonsky, R. Chriki, G. Barach, A. A. Friesem and N. Davidson,
   International Conference and Exhibition on Optics and Electro-Optics (OASIS 6), David Intercontinental Hotel, Tel-Aviv, Israel, 27-28 February 2017.

5. Unravelling the phase-amplitude coupling modulation in a delay-coupled diode lasers functionality – [Oral]
   P. Kumar, S. Sinha, V. Pal, and J. Mclnerney
   SPIE LASE, San Francisco, California United States, 28 January - 2 February 2017.

2016

1. Simulating XY spin dynamics with coupled laser network – [Oral]
   V. Pal, C. Tradonsky, R. Chriki, G. Barach, A. A. Friesem and N. Davidson,
   62nd Annual meeting of the Israel Physical Society (IPS 2016), Tel-Aviv University, Israel, 25 December 2016. http://www.israelphysicalsociety.org/submissions/simulating-xy-spin-dynamics-coupled-laser-network

2. Rapid Inverse problem solutions with a digital degenerate cavity laser – [Oral]
   C. Tradonsky, V. Pal, R. Chriki, G. Barach, A. A. Friesem and N. Davidson,
   62nd Annual meeting of the Israel Physical Society (IPS 2016), Tel-Aviv University, Israel, 25 December 2016. http://www.israelphysicalsociety.org/submissions/rapid-inverse-problem-solutions-digital-degenerate-cavity-laser

3. Topological effects in phase locking of coupled lasers – [Oral]
   V. Pal, C. Tradonsky, R. Chriki, G. Barach, A. A. Friesem and N. Davidson
   International Conference on Fiber Optics and Photonics (PHOTONICS 2016), IIT Kanpur, India, 4- 8 December 2016. https://doi.org/10.1364/PHOTONICS.2016.Th2C.2

2015

1. Controlling the output phase and coherence of degenerate cavity solid-state lasers – [Poster]
   V. Pal, C. Tradonsky, R. Chriki, A. A. Friesem and N. Davidson
   Advanced Solid-State lasers Congress (ASSL 2015), Berlin, Germany, 3-10 October 2015.

2. Controlling the spatial coherence and output phase in degenerate cavity solid-state lasers – [Poster]
   V. Pal, C. Tradonsky, R. Chriki, A. A. Friesem and N. Davidson
   Light and Matter I-CORE (Circle of Light) meeting, Jerusalem, Israel, 24-25 November 2015.

3. Investigations of phase locked laser arrays using second harmonic generation – [Oral]
   V. Pal, C. Tradonsky, R. Chriki, G. Barach, A. A. Friesem and N. Davidson,
   International Conference and Exhibition on Optics and Electro-Optics (OASIS 5), David Intercontinental Hotel, Tel-Aviv, Israel, 3-5 March 2015. http://oasis5.pwizard.com

4. Rapid manipulation of spatial coherence – [Oral]
   R. Chriki, M. Nixon, V. Pal, C. Tradonsky, A. A. Friesem and N. Davidson
   CLEO: QELS Fundamental Science (CLEO 2015), San Jose, USA, 10-15 May 2015. https://doi.org/10.1364/CLEO_QELS.2015.FM2D.2

5. Second harmonics of phase locked laser arrays – [Oral]
   C. Tradonsky, V. Pal, M. Nixon, E. Ronen, R. Chriki, A. A. Friesem and N. Davidson
   CLEO: QELS Fundamental Science (CLEO 2015), San Jose, USA, 10-15 May 2015.

6. Phase locking of many lasers by combined Talbot cavity and Fourier filtering – [Oral]
   C. Tradonsky, V. Pal, R. Chriki, A. A. Friesem and N. Davidson
   CLEO: Science and Innovations (CLEO 2015), San Jose, USA, 10-15 May 2015. https://doi.org/10.1364/CLEO_SI.2015.SF2F.6

7. Talbot coupling of laser arrays in a degenerate cavity – [Oral]
   V. Pal, C. Tradonsky, R. Chriki, G. Barach, A. A. Friesem and N. Davidson
   Frontier in Optics/Laser Science (FiO 2015), San Jose, USA, 18-22 October 2015. https://doi.org/10.1364/LS.2015.LTh1H.4

2014

1. The efficient control of spatial coherence – [Oral]
   R. Chriki, M. Nixon, V. Pal, C. Trandonsky, G. Barach, A. A. Friesem and N. Davidson
   60th annual meeting of the Israel Physical Society (IPS 2014), Ben-Gurion University, Beer-Sheva, Israel, 21 December 2014. http://www.israelphysicalsociety.org/submissions/efficient-control-spatial-coherence

2. The use of second harmonics in phase locked laser arrays – [Oral]
   C. Tradonsky, M. Nixon, E. Ronen, V. Pal, R. Chriki, A. A. Friesem and N. Davidson
   60th annual meeting of the Israel Physical Society (IPS 2014), Ben-Gurion University, Beer-Sheva, Israel, 21 December 2014. http://www.israelphysicalsociety.org/submissions/use-second-harmonics-phase-locked-laser-arrays

3. Second harmonic generation from coupled laser arrays – [Oral]
   C. Tradonsky, M. Nixon, E. Ronen, V. Pal, R. Chriki, A. A. Friesem and N. Davidson
   Circle of Light I-Core Kick off Meeting, Technion, Israel, 30 January 2014.

2013

1. Nonlinear dynamics of a semiconductor laser subject to two filtered optical feedbacks – [Oral]
   J. S. Suelzer, V. Pal, A. Prasad, G. Vemuri and R. Ghosh
   International Symposium on Physics and Applications of Laser Dynamics (IS-PALD 2013), Telecom ParisTech Paris, France, 29-31 October 2013.

2. Tailoring optical complex functionality of delay-coupled diode lasers: amplitude death and synchronization – [Oral]
   P. Kumar and V. Pal
   8th Conference on Nonlinear Systems and Dynamics (CNSD 2013), IIT Indore, India, 11-14 December 2013.

2012

1. Semiconductor laser dynamics with two filtered optical feedbacks – [Oral]
   V. Pal, J. Suelzer, A. Prasad, G. Vemuri and R. Ghosh,
   International Conference on Fiber Optics and Photonics (PHOTONICS 2012), IIT Madras, India, 9- 12 December 2012. https://doi.org/10.1364/PHOTONICS.2012.W3C.3

2. Noise correlations in a dual-frequency VECSEL – [Oral]
   S. De, V. Pal, A. El Amili, G. Pillet, G. Baili, M. Alouini, I. Sagnes, R. Ghosh and F. Bretenaker
   International Conference on Fiber Optics and Photonics (PHOTONICS 2012), IIT Madras, India, 9- 12 December 2012.

3. Effect of two filtered optical feedbacks on the dynamics of a semiconductor laser – [Oral]
   V. Pal, J. S. Suelzer, A. Prasad, G. Vemuri and R. Ghosh
   8th Dynamics Day Delhi (DDD 2012), Jamia Millia Islamia, Delhi, India, 10 November 2012.

4. Role of amplitude-phase coupling in synchronization of mutually delay coupled diode laser systems – [Oral]
   V. Pal, A. Prasad and R. Ghosh,
   National Conference on Nonlinear Systems and Dynamics (NCNSD 2012), IISER Pune, India, 12- 15 July 2012.

5. Role of optical phases in synchronization of mutually delay coupled diode laser systems – [Poster]
   V. Pal, A. Prasad and R. Ghosh
   SPS March Meeting, School of Physical Sciences, JNU, New Delhi, India, 01 March 2012.

2011

1. Amplitude-phase coupling effects in synchronization of a mutually coupled diode laser system – [Best Oral Award]
   V. Pal, A. Prasad and R. Ghosh,
   International OSA Network of Students (IONS 2011) IIT Delhi, New Delhi, India, 1-2 December 2011.

2. Optical phase dynamics in a coupled diode laser system exhibiting power synchronization- [Poster]
   V. Pal, A. Prasad and R. Ghosh
   SPS March Meeting, School of Physical Sciences, JNU, New Delhi, India, 10 March 2011.

3. Slow light in the noise spectrum of a VECSEL – [Oral]
   A. El Amili, V. Pal, B.-X. Miranda, F. Goldfarb, R. Ghosh, G. Baili, I. Sagnes, M. Alouini and F. Bretenaker
   International Conference on Advanced Infocomm Technology (ICAIT 2011), Wuhan, China. https://hal.archives-ouvertes.fr/hal-01142393

4. Phase locking in the noise spectrum of a single-mode VECSEL – [Poster]
   V. Pal, A. El Amili, F. Goldfarb, R. Ghosh, M. Alouini, I. Sagnes and F. Bretenaker
   3rd International Conference on Current Developments in Atomic, Molecular, Optical and Nano Physics (CDAMOP 2011), University of Delhi, Delhi, India, 14-16 December 2011.

2010 

1. Optimization of simultaneous oscillation of a two-frequency VECSEL by coupling constant measurement – [Oral]
   V. Pal, P. Trofimoff, G. Baili, M. Alouini, I. Sagnes, R. Ghosh and F. Bretenaker
   International Conference on Fiber Optics and Photonics (PHOTONICS 2010), IIT Guwahati, Guwahati, India, 11-15 December 2010.  http://dx.doi.org/10.1117/12.897790

2. Nonlinear Coupling Constant Measurement in Two-Frequency Laser – [Poster]
   V. Pal, P. Trofimoff, B.-X. Miranda, G. Baili, M. Alouini, L. Morvan, D. Dolfi, F. Goldfarb, I. Sagnes, R. Ghosh and F. Bretenaker
   SPS March Meeting, School of Physical Sciences, JNU, New Delhi, India, 4 March 2010.