Dual-band (1.55/1.3-um) operation of the recirculating photonic filter true-time delay

Siva Yegnanarayanan; Paul D. Trinh; Frederic Coppinger; Yian Chang; Boris Tsap; Harold R. Fetterman; Bahram Jalali

doi:10.1117/12.283943

23 October 1997 Dual-band (1.55/1.3-um) operation of the recirculating photonic filter true-time delay

Siva Yegnanarayanan, Paul D. Trinh, Frederic Coppinger, Yian Chang, Boris Tsap, Harold R. Fetterman, Bahram Jalali

Proceedings Volume 3160, Optical Technology for Microwave Applications VIII; (1997) https://doi.org/10.1117/12.283943
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Photonic microwave true-time delay eliminates the beam squint problem in broadband phased-array antenna. However the large insertion losses associated with the optical switching network that selects the appropriate delay line is a serious limitation. We have previously demonstrated a unique photonic filter that uses the optical carrier wavelength in the 1550 nm wavelength band to select the desired time delay. In this paper, dual band (1550/1300 nm) operation of this Recirculating Photonic Filter True-Time- Delay is demonstrated. This dual-band operation offers flexibility in system design, enhanced antenna functionality and is expected to lead to lower device and system cost.

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Siva Yegnanarayanan, Paul D. Trinh, Frederic Coppinger, Yian Chang, Boris Tsap, Harold R. Fetterman, and Bahram Jalali "Dual-band (1.55/1.3-um) operation of the recirculating photonic filter true-time delay", Proc. SPIE 3160, Optical Technology for Microwave Applications VIII, (23 October 1997); https://doi.org/10.1117/12.283943

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