Compact 10 GHz loopback arrayed-waveguide grating for high-fidelity optical arbitrary waveform generation
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Updated: Jul 3, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Nicolas K Fontaine1, Ryan P Scott, Chunxin Yang
1Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA. nkfontaine@ucdavis.edu
Abstract:
We demonstrate a high-performance optical arbitrary waveform shaper based on a single 10 GHz arrayed-waveguide grating with 64 loopback waveguides and integrated amplitude and phase modulators on each waveguide. The design is compact and self-aligning and allows for bidirectional operation. The device's complex transfer function is manipulated and measured over the full 640 GHz passband. To demonstrate optical arbitrary waveform shaping, high-fidelity 15-line shaped waveforms are measured with cross-correlation frequency-resolved optical gating.

