Greer, Burns & Crain, Ltd.
Y-junction reflector tunable delay or resonator waveguide devices
The invention provides tunable delay or resonator devices in an electro optical substrate. Signals in at least one waveguide in the electro optical substrate pass through Y-junction reflectors which direct signals from one branch of the waveguide back into another branch of the waveguide. A coupled delay or resonator approximated loop is presented in an embodiment of the invention with opposing Y-junction reflectors. In other embodiments of the invention, a delay ladder is provided with selectable levels of delay from multiple outputs.
The Regents of the University of California National Institute of Information and Communication Sumitomo Osaka Cement Co., Ltd.
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Tetsuya Jianxiao Kaoru Paul Kit Lai
Kawanishi Chen Higuma Yu