Integrated silica-based optical switch for radar phase control

Lily Y. Pang; Jerry L. Leonard Jr.; Gregory A. Magel; Susan Marie Eshelman; Tseng-Hwang Lin

doi:10.1117/12.178054

17 June 1994 Integrated silica-based optical switch for radar phase control

Lily Y. Pang, Jerry L. Leonard Jr., Gregory A. Magel, Susan Marie Eshelman, Tseng-Hwang Lin

Proceedings Volume 2236, Transition of Optical Processing into Systems 1994; (1994) https://doi.org/10.1117/12.178054
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

The development of low-loss, low-cost integrated optical switches is critical for radar phase control applications. We report recent progress in integrated phosphorous-doped SiO₂ on Si (PSG) waveguide optical routing switches based on electro-static actuation of an aluminum membrane. We have demonstrated the membrane switching concept and its implementation feasibility with a Mach-Zehnder interferometer and a deposited aluminum thin film. Without the metal film, 95% of the output light was measured in the cross channel, with a channel crosstalk of -13.37 dB. With a 3 mm long aluminum film being deposited on one of the interferometer arms as a phase shifter, 94% of the output light was measured in bar channel. The switch structure is currently being optimized for better performance, and a deformable aluminum membrane switch is being developed.

Citation Download Citation

Lily Y. Pang, Jerry L. Leonard Jr., Gregory A. Magel, Susan Marie Eshelman, and Tseng-Hwang Lin "Integrated silica-based optical switch for radar phase control", Proc. SPIE 2236, Transition of Optical Processing into Systems 1994, (17 June 1994); https://doi.org/10.1117/12.178054

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