講演抄録/キーワード |
講演名 |
2005-10-14 14:55
高速利得傾斜補償器の開発 ○畑野達也・尹 大烈・水野一庸(古河電工) |
抄録 |
(和) |
今後のWDMシステムにおいて,OADMを用いたネットワーク構成が検討されている。そのOADMに入力される信号光の増減に伴うEDFAでの利得変動や伝送路で発生するラマン利得変動が,サブmsecのオーダーで発生し、波長方向に発生する利得傾斜であることが知られている。我々は,これらの利得変動による利得傾斜を補償するLN(Lithium Niobate,ニオブ酸リチウム)偏光変換器を用いたµsecオーダーで動作可能な高速利得傾斜補償器を開発した。 |
(英) |
In designing a network architecture to offer greater flexibility and higher reliability in the wavelength-division multiplexing (WDM) systems of the future, an architec-ture that uses the optical add-drop multiplexer (OADM) for signal I/O with respect to the transmission path has been proposed. It is known that changes in the gain of the erbium-doped fiber amplifier (EDFA) that accompany fluctuation in the signal light input to the OADM and changes in Raman gain generated in the transmission path occur in the sub-millisecond order. It is also known that this gain change is gain tilt occurring in the wavelength direction, con-stituting a factor in the degradation of transmission characteristics due to the power level devia-tions among signals. We have developed a fast gain tilt compensator that is capable of operation in the microsecond order and uses a lithium niobate (LN) polarization transformer to compen-sate for the gain tilt due to these gain changes. |
キーワード |
(和) |
利得傾斜補償器 / ラマン利得 / ニオブ酸リチウム / WDMシステム / / / / |
(英) |
gain tilt compensator / Raman gain / lithium niobate / WDM system / / / / |
文献情報 |
信学技報, vol. 105, no. 333, OFT2005-31, pp. 23-28, 2005年10月. |
資料番号 |
OFT2005-31 |
発行日 |
2005-10-07 (OFT) |
ISSN |
Print edition: ISSN 0913-5685 |
PDFダウンロード |
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