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89. (JP10233546 ) LOSSLESS LIGHT CROSS-CONNECTION CONFIGURATION
Application Number: 35597597 Application Date: 25.12.1997
Publication Number: 10233546 Publication Date: 02.09.1998
Publication Kind : A
IPC:
G02B 6/0
H01S 3/6
H01S 3/10
H04B 10/2
H04Q 11/0
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
05
Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06
Construction or shape of active medium
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
10
Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
02
Details
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
11
Selecting arrangements for multiplex systems
CPC:
H04Q 11/0005
H04Q2011/0011
H04Q2011/0013
H04Q2011/0015
H04Q2011/0018
H04Q2011/0039
H04Q2011/0047
H04Q2011/0052
H04Q2011/0083
Applicants: LUCENT TECHNOL INC
ルーセント テクノロジーズ インコーポレーテッド
Inventors: FATEHI MOHAMMAD T
モハメッド タグヒ ファテヒ
KNOX WAYNE HARVEY
ウエイン ハーヴェイ ノックス
Priority Data: 08777890 31.12.1996 US
Title: (JA) 無損失光交差接続構成
(EN) LOSSLESS LIGHT CROSS-CONNECTION CONFIGURATION
Abstract: front page image
(JA)


（修正有）


【課題】 光分配器光セレクタ、および光増幅器からな
る無損失光交差構成とする。


【解決手段】 無損失光交差接続構成は、複数の光希土
類ドープファイバ光増幅器を、利得交換光分配器および
利得交換光セレクタとして採用し、ＯＮ／ＯＦＦスイッ
チとして機能する。
利得交換光分配器およびセレクタは
ポンプ選択回路を、複数のポンプと複数の対応する希土
類ドープファイバ光増幅器とによって実現される。
特定
のポンプとそれに対応する光増幅器が、制御回路構成を
使用することによって選択され、どの一つあるいは複数
の出力ポートが入力ポートに接続されるか決定される。
希土類ドープファイバ光増幅器とそれに対応するポンプ
が、利得交換光分配器および利得交換光セレクタの両方
に対して採用され、任意の複数の所与の波長の入力信号
が、対応する一つの出力ラインにルートされる。


(EN) PROBLEM TO BE SOLVED: To make it possible to broadcast a light signal to a plurality of outputs from an arbitrary input and to it in a multiple-wavelength optical network by a method wherein an exchange-type pump together with an identical rare-earth-doped light amplifier is used for a gain-exchange optical distributor and a selector.

SOLUTION: In a gain-exchange optical distributor and a star optical coupler 102-1 as a selector, an input light signal on an input 101-1 is coupled to respective light amplifiers 103-11 to 103-14 which use a rear-earth-doped fiber. In a star optical coupler 102-2, an input light signal on an input 101-2 is coupled to light amplifiers 103-21 to 103-24. In addition, a star optical coupler 102-3 is coupled to light amplifiers 103-31 to 103-34, and a start optical coupler 102-4 is coupled to light amplifiers 103-41 to 103-44. Then, exchange-type pumps 104-11 to 104-14 and 104-41 to 104-44 are made to correspond to light amplifiers 103-11 to 103-14 and 103-41 to 103-44.

COPYRIGHT: (C)1998,JPO
Also published as:
CN1190860EP0851705