Integrated Optics

Isolation of a polarization-independent acousto-optic switch

[+] Author Affiliations
Lifeng Xiao

Tianjin University, Department of Applied Physics, Key Laboratory of Opto-Electronics Information Technical Science, EMC, Tianjin 300072, China

Ying Liu

Tianjin University, Department of Applied Physics, Key Laboratory of Opto-Electronics Information Technical Science, EMC, Tianjin 300072, China

Zhaoli Zeng

Tianjin University, Department of Applied Physics, Key Laboratory of Opto-Electronics Information Technical Science, EMC, Tianjin 300072, China

Fan Geng

China Spaceflight Industry Corporation, Head Office, 8358th Institute, Tianjin 300192, China

Opt. Eng. 46(3), 034601 (March 09, 2007). doi:10.1117/1.2713371
History: Received November 11, 2005; Revised July 29, 2006; Accepted September 01, 2006; Published March 09, 2007
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Isolation of a new structural acousto-optic switch based on an integrated optical polarization-independent quasi-collinear acousto-optic tunable filter (AOTF) is studied in detail. First, we demonstrate the structure and operation principle of this optical switch. Second, factors that influence isolation of the optical switch are analyzed, and expressions of the isolation are deduced. Finally, the optical switch is fabricated, and its isolation is measured in experiment. We show that the isolation mainly depends on the TETM mode intensity ratio when the radiofrequency signal is absent, but the isolation mainly depends on the mode conversion efficiency when the radiofrequency signal is present.

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© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Lifeng Xiao ; Ying Liu ; Zhaoli Zeng and Fan Geng
"Isolation of a polarization-independent acousto-optic switch", Opt. Eng. 46(3), 034601 (March 09, 2007). ; http://dx.doi.org/10.1117/1.2713371


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