The SpooQy Lab

Our results from the SpooQy-1 satellite are now published on Optica. You may read the paper here.

We also co-wrote a commentary with Artur Ekert for the Straits Times discussing the recent results from SpooQy-1 and Micius. You can read it at the NUS news site: https://nus.edu/3fr91O7

Some stories are available at:
Our comms team has also made a short video about the project. Watch it here.

SpooQy-1 was launched from the International Space Station in June 2019. Learn more about the satellite and its science objective.


We are a multi-disciplinary group at the Centre for Quantum Technologies in Singapore.  We are located on the National University of Singapore campus.  Our work leverages optical technology for building compact, rugged & effective optical entanglement systems used for testing fundamental physics and demonstrating quantum-assisted applications. We work with a wide range of optical tools, and have an active interest in nonlinear optics including bulk and waveguide materials. Systems integration (optics, electronics & mechanical design) is a key theme of our work and undergraduate students are encouraged to take part in our projects.  
Latest News from SpooQy Lab

  • A review of entangled photon sources based on bulk nonlinear optics.
  • Our latest design for entangled photon-pairs is now available at Physical Review A. This source converts correlation in position and momentum into polarization entanglement. The nice thing about it is that it uses a minimal part count!
  • SpooQy-1 results are now published on Optica.
  • Read about SpooQy-1 and the next steps at IEEE Spectrum and Optica.
  • Trusted satellite constellation performance for QKD is analysed. Joint work with TU-Delft and led by Tom Vergoosen and Sergio Loarte.
  • A broadband source of polarization-entangled photon-pairs suitable for wavelength division multiplexing. Applied Physics Letters (2020).
  • Polymer waveguides are tunable and a possible primitive for quantum simulators. Reported in Optics Letters (2020).
  • Listen to a podcast of Alexander Ling's interview with InfoRiskToday about progress in QKD development and how it could be deployed (2019).