Deepti Pant

40-channel ultra-low-power compact PLC-based ROADM subsystem

We review the main ROADM subsystem technologies, and propose a 40-channel PLC-based ROADM subsystem that exhibits ultra-low power consumption and compact size, while meeting the requirements for high optical performance, high reliability, and low cost.

Thermo-optical compensation in high-index-contrast waveguides

Thermo-optical compensation in high-index contrast waveguide system (a-Si on SiO2) is reported using different cladding materials. We experimentally demonstrate the thermo-optically compensated a-Si based racetrack ring resonators with an acrylate polymer cladding.

Metro ring node module based on polymeric planar lightwave circuits

We describe a 4-channel metro ring node module that performs add/drop, protection switching, and power equalization functionalities on a single chip. The worst-case insertion loss is 1.25 dB.

Thermo-Optical Compensation in High-Index-Contrast Waveguides Using Polymer Claddings

We present the design and fabrication of temperature-insensitive high-index-contrast waveguides using acrylate polymer claddings. The large negative thermo-optic coefficient of the polymers effectively compensates the intrinsic positive thermo-optic effects induced from the waveguide core.