Photonics and Optics Lab

Mathematical Modeling of Optical Biosensors

Optical microring resonator (MRR) based refractive index biosensors have been mathematically modeled using Coupled Mode Theory (CMT). The proposed analytical model shows comparable accuracy w.r.t numerical methods like FDTD and FEM but with significantly reduced computational requirements.

Photonic Microwave Generation

This work aims at generating stable microwave signal by heterodyning of optical signals from the same laser cavity. For this, inherent birefringence of a buried heterostructure laser is exploited to generate 2 stable optical modes inside the laser which are then interfered to generate microwave signal.

Incoherent Beam Combining of High Power Lasers

This work aims at designing an efficient high power beam combination system of multiple laser sources. The proposed method is a type of incoherent beam combination technique which does not require complex phase matching algos. Specifically, non-Gaussian beam types such as Hermite Gaussian and Laguerre Gaussian beams are explored for their beam combination efficiency.

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