JP2978217B2 - Optical cross connect device - Google Patents
Optical cross connect deviceInfo
- Publication number
- JP2978217B2 JP2978217B2 JP2223554A JP22355490A JP2978217B2 JP 2978217 B2 JP2978217 B2 JP 2978217B2 JP 2223554 A JP2223554 A JP 2223554A JP 22355490 A JP22355490 A JP 22355490A JP 2978217 B2 JP2978217 B2 JP 2978217B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- wavelength
- optical
- connect device
- optical cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔概要〕 入出力間を多元接続する光クロスコネクト装置に関
し、 発光素子及び受光素子との接続が容易な光クロスコネ
クト装置を実現することを目的とし、 各々が異なる可変の出力波長を有する複数の発光素子
と受光波長の可変の選択機能を有する受光素子との間を
閉空間手段で多元接続するように構成する。DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to an optical cross-connect device for multiple connection between an input and an output, with the object of realizing an optical cross-connect device that can be easily connected to a light-emitting element and a light-receiving element. A plurality of light-emitting elements having the output wavelengths and a light-receiving element having a function of variably selecting the light-receiving wavelength are configured to be multiple-connected by closed space means.
〔産業上の利用分野〕 本発明は、光クロスコネクト装置に関し、特に入出力
間を多元接続する光クロスコネクト装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cross-connect device, and more particularly, to an optical cross-connect device for connecting multiple inputs and outputs.
光伝送路に接続された局舎においては、光入力信号を
交換局側に送らずに光伝送路に再び戻すような場合、複
数の入力信号と複数の出力信号との間の信号を光レベル
でパス（ブロック）毎に任意の接続を行う広帯域な光ク
ロスコネクト装置が必要である。In a station connected to an optical transmission line, if an optical input signal is returned to the optical transmission line without being sent to the switching center, the signal between a plurality of input signals and a plurality of output signals is converted to an optical level. Therefore, a broadband optical cross-connect device for making an arbitrary connection for each path (block) is required.
第３図は、従来の光クロスコネクト装置を概略的に示
したもので、図中、入力側ではチャネルCH−１〜CH−ｎ
の入力信号（電気又は光）がそれぞれ波長可変素子又は
波長変化素子としての発光素子201〜20nに入力されて図
示のように波長λ2,λ4,λ１〜λｎの光信号に変換さ
れ、それぞれ光結合器41〜4nを介して光ファイバ51〜5n
に入力される。FIG. 3 schematically shows a conventional optical cross-connect device, in which channels CH-1 to CH-n are arranged on the input side.
Wavelength lambda 2 so that the input signal (electrical or optical) is shown being input to the light emitting element 20 1 to 20 n as a wavelength tunable element or wavelength change element each, lambda 4, the optical signal of lambda 1 to [lambda] n It converted, the optical fiber 5 1 to 5 n, respectively, via an optical coupler 4 1 to 4 n
Is input to
これらの光ファイバ51〜5nは第３図に概念的に示され
ている光スターカプラ10の一部を構成するものであり、
この光スターカプラ10においては、光ファイバ51〜5nの
各出力信号（λ１〜λｎ）が、光ファイバ61〜6nに対し
て送出される。These optical fiber 5 1 to 5 n is constitutes a part of the optical star coupler 10 shown conceptually in FIG. 3,
In the optical star coupler 10, the optical fiber 5 1 to 5 n output signals of the (λ 1 ~λ n) is transmitted to the optical fiber 6 1 to 6 n.
光スターカプラ10から光ファイバ61〜6nを介して出力
された光信号は光結合器41〜4nと同様の光結合器71〜7n
を介して波長固定フィルタ又は可変波長フィルタ等の波
長選択機能を有する受光素子301〜30nで図示の波長λ１
〜λｎが選択された電気信号等に変換されて出力側のチ
ャネルCH−Ａ〜CH−Ｎの信号として出力されることとな
る。Optical star optical signal output via the optical fiber 6 1 to 6 n from the coupler 10 is similar optical coupler and the optical coupler 4 1 ~4 n 7 1 ~7 n
Through the light receiving element 30 1 to 30 wavelengths shown in n lambda 1 having a wavelength selection function such as fixed wavelength filters or tunable wavelength filter
To [lambda] n is and is output as a signal of the channel CH-A~CH-N of is converted into an electric signal or the like which is selected by the output side.
即ち、受光素子301〜30nの波長選択は発光側の接続し
たいチャネルに設定されるが、その設定を重複するよう
に設定したときには、例えばチャネルCH−３からチャネ
ルCH−Ａ及びCH−Ｃへブロードキャストできることにな
る。That is, the wavelength selective light receiving elements 30 1 to 30 n are set to the channel to be connected in the light-emitting side, when set so as to overlap the settings, for example, channels from a channel CH-3 CH-A and CH-C Will be able to broadcast to
このような従来例の場合には、光スターカプラを用い
ているため、これと発光素子及び受光素子との接続が容
易でなく、その入力側での光結合器41〜4n及び出力側で
の光結合器71〜7nの計2n個の光結合器を用いて精密な位
置合わせを行わなければならず、構造的にも複雑になり
量産が困難になると共にこれら光結合器自体での信号損
失も少なくないという問題点があった。In the case of such a conventional example, the use of the optical star coupler, which the light emitting device and not easy connection to the light receiving element, an optical coupler 4 1 to 4 n and the output at the input side It is necessary to perform precise alignment using a total of 2n optical couplers, 7 1 to 7 n , and the structure becomes complicated, mass production becomes difficult, and these optical couplers themselves are used. However, there is a problem that the signal loss is not small.
従って、本発明は、発光素子及び受光素子との接続が
容易な光クロスコネクト装置を実現することを目的とす
る。Therefore, an object of the present invention is to realize an optical cross-connect device that can be easily connected to a light emitting element and a light receiving element.
第１図は、上記の課題を解決するための本発明に係る
光クロスコネクト装置の構成を原理的に示したもので、
本発明では、各々が異なる可変の出力波長を有する複数
の発光素子21〜2nと受光波長の可変の選択機能を有する
受光素子31〜3nとの間を閉空間手段１で多元接続したこ
とを特徴とするものである。FIG. 1 shows in principle the configuration of an optical cross-connect device according to the present invention for solving the above-mentioned problem.
In the present invention, a multiple access in the closed space means 1 between the plurality of light emitting elements 2 1 to 2 n and the light receiving element 3 1 to 3 n with variable selection function of the light-receiving wavelength having an output wavelength of each different variable It is characterized by having done.
第１図に示す本発明の光クロスコネクト装置では、波
長可変機能を有する発光素子21〜2nと波長可変選択機能
を有する受光素子31〜3nとが光ファイバ等を介在させな
いで閉空間手段１によって多元接続されているので、発
光素子21〜2nからの出力光は閉空間手段１のみを経由
し、しかも閉空間内を反射（乱反射を含む）しながら受
光素子31〜3nに到達する。In the optical cross-connect device of the present invention shown in FIG. 1, closed without interposed light-receiving element 3 1 to 3 n Hikari Toga fiber or the like having a light-emitting element 2 1 to 2 n and the wavelength tunable selecting function having a wavelength varying function because it is multiple access by the space unit 1, the output light from the light emitting element 2 1 to 2 n is only through the closed space means 1, addition (including irregular reflection) reflected in the closed space while the light receiving elements 3 1 - Reach 3 n .
従って、発光側では任意の波長の光を閉空間手段１内
に放出してやればよく、また受光側では反射される来る
光の内、任意の波長のものだけを選択的に受けてやれば
よいので、精密な位置合わせ等が不必要となる。Therefore, light of an arbitrary wavelength may be emitted into the closed space means 1 on the light emitting side, and only light of an arbitrary wavelength may be selectively received from the reflected light on the light receiving side. In addition, precise positioning and the like become unnecessary.
〔実 施 例〕 第２図は、第１図に示した本発明に係る光クロスコネ
クト装置の一実施例を示したもので、この実施例では、
第１図の閉空間手段１として暗箱11とその外側に設けた
遮蔽体12とを設けており、暗箱11には一例として４つの
波長可変機能を有する発光素子21〜24と４つの波長可変
選択機能を有する受光素子31〜34とが暗箱11内に直接顔
を出すように取りつけられている。[Embodiment] Fig. 2 shows an embodiment of the optical cross-connect device according to the present invention shown in Fig. 1, and in this embodiment,
And provided a shield 12 provided dark box 11 and on the outside as a closed space means 1 of FIG. 1, the light emitting element 21 to 24 and four wavelengths with four wavelength tunable function as an example in the dark box 11 and a light-receiving element 3 1 to 3 4 with variable selection function is attached to issue directly face dark box 11.
これらの発光素子21〜24は、それぞれレーザーダイオ
ード21とレンズ22とで構成されており、また、受光素子
31〜34はそれぞれ波長セレクタ31とフォトダイオード32
とで構成されている。These light emitting elements 21 to 24 is constituted by a laser diode 21 and the lens 22, respectively, The light-receiving element
3 1 to 3 wavelength selector 31 are the fourth and the photodiode 32
It is composed of
そして、これらの発光素子21〜24と受光素子31〜34と
は外部の光が入り込まないようにするため、遮蔽体12が
入出力線路のみを通して全体を光遮蔽するように包囲し
ている。Then, in order to do not get an external light from these light emitting elements 21 to 24 and the light receiving element 3 1 to 3 4, shield 12 surrounds so that the light shielding across only through output line ing.
このような実施例においては、例えばチャネルCH−１
の入力信号は遮蔽体12を通り、発光素子21のレーザーダ
イオード21で所定の波長の光に変換されレンズ22から暗
箱11内に入射される。In such an embodiment, for example, channel CH-1
The input signal is incident on the shield 12 through the dark box 11 from being converted into light of a predetermined wavelength in the laser diode 21 of the light emitting element 2 1 lens 22.
そして、暗箱11内を適当に反射した後、例えば受光素
子32及び33で受光されるが、この場合には受光素子33の
波長セレクタ31のみが選択波長が合っていたため、フォ
トダイオード32を介してチャネルCH−Ｃから出力され
る。Then, after suitable reflecting the dark box 11, for example because it is received by the light receiving element 3 2 and 3 3, which in this case only the wavelength selector 31 of the light receiving element 3 3 was not match the selected wavelength, a photodiode 32 Is output from the channel CH-C via
また、ブロードキャストを行うときには、上記の例で
受光素子32の波長セレクタ31も選択波長を同一にすれば
よいことになる。Further, when performing broadcast, also it is sufficient to select a wavelength in the same wavelength selector 31 of the light receiving element 3 2 in the above example.
以上のように本発明に係る光クロスコネクト装置によ
れば、各々が異なる可変の出力波長を有する複数の発光
素子と受光波長の可変の選択機能を有する受光素子との
間を閉空間手段で多元接続したので、発光側では光を閉
空間手段内に放出してやればよく、また受光側では反射
されて来る光の内、所望の波長のものだけを選択的に受
けてやればよいので、精密な位置合わせ等が不必要とな
る。As described above, according to the optical cross-connect device of the present invention, a plurality of light-emitting elements each having a different variable output wavelength and a light-receiving element having a variable selection function of a light-receiving wavelength are multiplexed by closed space means. Since it is connected, the light-emitting side only needs to emit light into the closed space means, and the light-receiving side needs to selectively receive only the light of the desired wavelength out of the reflected light. Positioning and the like become unnecessary.
これにより、低コスト化及び小型化が図られ、量産化
が可能となる。Thereby, cost reduction and size reduction are achieved, and mass production becomes possible.
第１図は、本発明に係る光クロスコネクト装置の原理構
成図、 第２図は、本発明に係る光クロスコネクト装置の一実施
例を示した図、 第３図は、従来例を示す図、である。 第１図において、 １……閉空間手段、 21〜2n……発光素子、 31〜3n……受光素子。 図中、同一符号は同一又は相当部分を示す。FIG. 1 is a diagram illustrating the principle of an optical cross-connect device according to the present invention, FIG. 2 is a diagram illustrating an embodiment of the optical cross-connect device according to the present invention, and FIG. 3 is a diagram illustrating a conventional example. ,. In Figure 1, 1 ...... closed space means, 2 1 to 2 n ...... emitting element, 3 1 to 3 n ...... light receiving element. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−200645（ＪＰ，Ａ) 特開 昭58−200642（ＪＰ，Ａ) 特開 昭58−200643（ＪＰ，Ａ) 特開 昭56−112142（ＪＰ，Ａ) 特開 昭57−40205（ＪＰ，Ａ) 特開 平２−156747（ＪＰ，Ａ) 実開 昭58−21110（ＪＰ，Ｕ) 実開 昭57−146114（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H04Q 3/52 H04B 9/00 G02B 6/28 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-200645 (JP, A) JP-A-58-200642 (JP, A) JP-A-58-200643 (JP, A) JP-A-56-200643 112142 (JP, A) JP-A-57-40205 (JP, A) JP-A-2-156747 (JP, A) JP-A-58-21110 (JP, U) JP-A-57-146114 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) H04Q 3/52 H04B 9/00 G02B 6/28
Claims (1)
の発光素子（21〜2n）と受光波長の可変選択機能を有す
る受光素子（31〜3n）との間を閉空間手段（１）で多元
接続したことを特長とする光クロスコネクト装置。1. A plurality of light emitting elements having an output wavelength of each different variable (2 1 to 2 n) and the closed space means the space between the light receiving element (3 1 to 3 n) with variable selection function of the light-receiving wavelength An optical cross-connect device characterized in that the multiple connection is performed in (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2223554A JP2978217B2 (en) | 1990-08-24 | 1990-08-24 | Optical cross connect device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2223554A JP2978217B2 (en) | 1990-08-24 | 1990-08-24 | Optical cross connect device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04104694A JPH04104694A (en) | 1992-04-07 |
| JP2978217B2 true JP2978217B2 (en) | 1999-11-15 |
Family
ID=16799980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2223554A Expired - Fee Related JP2978217B2 (en) | 1990-08-24 | 1990-08-24 | Optical cross connect device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2978217B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5370714B2 (en) * | 2007-05-31 | 2013-12-18 | ソニー株式会社 | Optical waveguide and signal processing apparatus |
| WO2008149734A1 (en) * | 2007-05-31 | 2008-12-11 | Sony Corporation | Optical waveguide, signal processing device, and signal processing substrate |
| JP2009237528A (en) * | 2008-03-05 | 2009-10-15 | Sony Corp | Optical selector switch and signal-processing apparatus |
-
1990
- 1990-08-24 JP JP2223554A patent/JP2978217B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04104694A (en) | 1992-04-07 |
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