High performance planar lightwave circuit devices for large capacity transmission

Area of Science:

• Photonics and Optical Engineering
• Telecommunications Technology
• Materials Science for Optoelectronics

Background:

• Broadband service penetration necessitates high-capacity networks with high-density multiplexing and high-speed transmission.
• Silica waveguide optical circuit technology offers precise control over optical amplitude and phase, crucial for complex optical interferometric circuits.

Purpose of the Study:

• To review recent advancements in silica waveguide optical circuit technology.
• To present experimental results for key optical devices essential for next-generation optical networks.

Main Methods:

• Review of current research and development in silica waveguide technology.
• Experimental fabrication and characterization of ultra-wideband Arrayed Waveguide Gratings (AWG).
• Development and testing of optical Orthogonal Frequency-Division Multiplexing (OFDM) filters, coherent receiver demodulators, and advanced modulators.

Main Results:

• Demonstration of an ultra-wideband AWG.
• Successful implementation of an optical OFDM filter.
• Experimental validation of a demodulator for coherent receivers.
• Development of a highly functional optical modulator.

Conclusions:

• Silica waveguide technology is a critical enabler for high-capacity optical networks.
• The reviewed devices show significant progress towards supporting advanced broadband services.
• Further development in this area will drive innovation in optical communications.