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3 September 2002 Hybrid reconfigurable OADM using MEMS switch and FBG
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Proceedings Volume 4907, Optical Switching and Optical Interconnection II; (2002)
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China
A tunable optical add/drop multiplexer (OADM) is demonstrated byu sing a micromachined 2 × 2 optical switch and a tunable fiber Bragg grating (FBG). The new hybrid OADM can be tuned to add/drop one of the multi input channels dynamically. The insertion loss of the dropped channel and added channel are 2.84 dB and 1.8 dB respectively. The transmission loss is 2.04 dB. These losses are all able to reduce greatlyi f the circulators are modified. The crosstalk between channels is less than -20 dB, and it can be further reduced byi mproving the reflectivityo f FBG. The tuning speed is on the order of millisecond. The tuning range is 3.0nm. The fabricated system is demonstrated by selectively adding/dropping one of the adjacent four channels with the spacing of 100GHz. Systems with multi channels being dropped and / or added can be achieved bycas cading the proposed structure.
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Jing Li, Ai Qun Liu, Q.X Zhang, N. Balasubramanian, and C. Lu "Hybrid reconfigurable OADM using MEMS switch and FBG", Proc. SPIE 4907, Optical Switching and Optical Interconnection II, (3 September 2002);

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