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Proceedings Paper

Directionality switchable gain stabilized linear repeater
Author(s): Takayuki Ota; Tadashi Ohmachi; Kazuo Aida
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Paper Abstract

We propose a new approach to realize a bidirectional linear repeater suitable for future optical internet networks and fault location in repeater chain with OTDR. The proposed approach is the linear repeater of simple configuration whose directionality is rearranged dynamically by electrical control signal. The repeater is composed of a magneto-optical switch, a circulator, a dynamically gain stabilized unidirectional EDFA, and control circuits. The repeater directionality is rearranged as fast as 0.1ms by an electrical control pulse. It is experimentally confirmed that OTDR with the directionality switchable repeater is feasible for repeater chain. The detailed design and performance of the repeater are also discussed, including the multi-pass interference (MPI) which may arise in the proposed repeater, the effect of the MPI on SNR degradation of the repeater chain and the feed-forward EDFA gain control circuit.

Paper Details

Date Published: 25 October 2004
PDF: 10 pages
Proc. SPIE 5604, Optomechatronic Micro/Nano Components, Devices, and Systems, (25 October 2004); doi: 10.1117/12.578008
Show Author Affiliations
Takayuki Ota, Shizuoka Univ. (Japan)
Tadashi Ohmachi, Shizuoka Univ. (Japan)
Kazuo Aida, Shizuoka Univ. (Japan)


Published in SPIE Proceedings Vol. 5604:
Optomechatronic Micro/Nano Components, Devices, and Systems
Yoshitada Katagiri, Editor(s)

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