Fiber Optics and Optical Communication

Novel Mach-Zehnder interferometer structure for tunable optical interleaver

[+] Author Affiliations
Juan Zhang

Shanghai University, School of Communication and Information Engineering, Shanghai 200072, China

Liren Liu

Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, P.O. Box 800-211, Shanghai 201800, China

Opt. Eng. 45(4), 045003 (April 13, 2006). doi:10.1117/1.2190223
History: Received February 22, 2005; Revised August 08, 2005; Accepted August 26, 2005; Published April 13, 2006
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A novel optical interleaver scheme based on nested optical glass pairs is proposed. The assembly of pairs behaves as a cascaded Mach-Zehnder interferometer. The interleaver, with simple structure, low cost, and compact size, can be easily implemented with inexpensive material and mature preparation technology. Small channel spacing (50GHz), high isolation (<30dB), a wide, flat passband and stop band (>211 period), and center-frequency tunability can be obtained simultaneously. An optimum design of a 50GHz tunable interleaver based on this structure is given as an example. Its environmental temperature sensitivity and fabrication tolerance are also analyzed.

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© 2006 Society of Photo-Optical Instrumentation Engineers

Citation

Juan Zhang and Liren Liu
"Novel Mach-Zehnder interferometer structure for tunable optical interleaver", Opt. Eng. 45(4), 045003 (April 13, 2006). ; http://dx.doi.org/10.1117/1.2190223


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