JPS60117211A - Optical switch - Google Patents
Optical switchInfo
- Publication number
- JPS60117211A JPS60117211A JP22403883A JP22403883A JPS60117211A JP S60117211 A JPS60117211 A JP S60117211A JP 22403883 A JP22403883 A JP 22403883A JP 22403883 A JP22403883 A JP 22403883A JP S60117211 A JPS60117211 A JP S60117211A
- Authority
- JP
- Japan
- Prior art keywords
- port
- semi
- light
- signal
- optical switch
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は光伝送路中に挿入され、光路を切シ換える光ス
ィッチに関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an optical switch that is inserted into an optical transmission line and switches the optical path.
従来この種の光スィッチとしては、複数のボートからの
入力信号のうちの１つを複数のポートのうちの１つに切
シ換えて出力するものしがながった。Conventionally, this type of optical switch has been used to switch one of input signals from a plurality of boats to one of a plurality of ports and output the signal.
それ故に３個のボー） （Ｐｔ） 、 （Ｐ２） 、
（Ｐａ）があって、（Ｐ２）のみか（Ｐａ）のみか（Ｐ
２）と（Ｐａ）の両方からの信号を（ＰＩ ）に送シた
いときや（Ｐｌ）からの信号を（Ｐ２）のみか（Ｐａ）
のみか（Ｐ２）と（Ｐａ）の両方に送９たいときは、第
１図に示すように、光スィッチ（１）と３個の方向性結
合器（２） 、 （３） 、 （４）とが組合せて用い
られていた。しかしこのものでは部品点数が多く経済的
ではない。また光スィッチの他に方向性結合器を使用す
るため挿入損失が大きくなるという欠点も生じる。Therefore 3 baud) (Pt) , (P2) ,
There is (Pa), and only (P2) or only (Pa) (P
2) When you want to send signals from both and (Pa) to (PI), or when you want to send signals from (Pl) only to (P2) or (Pa)
If you want to send signals to both P2 and Pa, use an optical switch (1) and three directional couplers (2), (3), (4) as shown in Figure 1. were used in combination. However, this method has a large number of parts and is not economical. Furthermore, since a directional coupler is used in addition to the optical switch, there is a drawback that insertion loss becomes large.
本発明はこのような従来の欠点を解決するためになされ
たもので、安価で挿入損失の少ない光スィッチの提供を
目的とする。The present invention was made to solve these conventional drawbacks, and aims to provide an inexpensive optical switch with low insertion loss.
すなわち本発明は、片面が透過面と半反射面と全反射面
に分けられた誘電体板を具備することを特徴とする。That is, the present invention is characterized in that one side is provided with a dielectric plate divided into a transmission surface, a semi-reflection surface, and a total reflection surface.
以下本発明の詳細を図面を参照して説明する。 The details of the present invention will be explained below with reference to the drawings.
本発明の一実施例の光スィッチは第２図に示すように、
各光ファイバ（Ｆｌ）〜（Ｆ３）からの出射光を平行光
に変換する各ボート（ＰＩ）〜（Ｐａ） Ｋ配置された
３個のレンズ（Ｌｌ）〜（Ｌ３）及び光学部品（５）か
ら構成烙れる。光学部品（５）は、厚さが一様な透１よ
′
明な誘電体板（６）例えザガラス板の片面に半反射膜（
７′）及び全反射膜（８′）を設けてなシ、透過面（９
）、半反射面（力及び全反射面（８）が形成されている
。半反射膜（７′）は、例えば酸化チタン及び二酸化ノ
リコンを交互１ｃ積層してな９、厚さは数千＾でおる。An optical switch according to an embodiment of the present invention is as shown in FIG.
Each boat (PI) to (Pa) that converts the emitted light from each optical fiber (Fl) to (F3) into parallel light. Three lenses (Ll) to (L3) arranged in K and optical components (5). It is composed from. The optical component (5) consists of a transparent dielectric plate (6) with a uniform thickness, even if a semi-reflective film (6) is coated on one side of the glass plate.
7') and total reflection film (8') are not provided.
), a semi-reflective surface (power and total reflection surface (8)) are formed.The semi-reflective film (7') is made by laminating, for example, titanium oxide and noricon dioxide alternately, and has a thickness of several thousand ^. I'll go.
また全反射膜（８′）は半反射膜（７′）と同様に酸化
チタンと二酸化シリコンの４責層体でなシ、半反射膜（
７′）よシも厚く形成されている。そして（Ｐｌ）から
の平行光（１０）を、第２図ｆａ）のように透過面（句
にあてたときは（Ｐｌ）からのＩＩＮ号が（Ｐｌ）に送
られ、第２図（ｂ）のように半反射面（力Ｖｃｊりてた
ときは（Ｐｌ）からの信号が（Ｐｌ）と（Ｐａ）に送ら
れ、第２図ｆｃ）のように全反射面（８）にあてたとき
は（Ｐｌ）からの信号が（Ｐａ）に送られる。また（Ｐ
ｌ）と（Ｐａ）からの平行光αυ。In addition, the total reflection film (8') is a four-layer structure of titanium oxide and silicon dioxide, similar to the semi-reflection film (7').
7') The sides are also thick. When the parallel light (10) from (Pl) is applied to a transparent surface (phrase) as shown in Figure 2 fa), the IIN signal from (Pl) is sent to (Pl), and the IIN signal from (Pl) is sent to (Pl), as shown in Figure 2 (b). ) as shown in the semi-reflecting surface (when the force Vcj is present, the signal from (Pl) is sent to (Pl) and (Pa), and is applied to the total reflecting surface (8) as shown in Fig. 2 fc). Then, a signal from (Pl) is sent to (Pa). Also, (P
Parallel light αυ from l) and (Pa).
（１２）の交差面を、第２図（（１）のように透過面（
８）にあてたときは（Ｐｌ）からのＩＢ号が（Ｐｌ）に
送られ、第２図射面（８）にあてたときは（Ｐａ）から
のイ、１号がＣＰｘ）ＶＣ送られる。(12) as shown in Figure 2 ((1))
When it hits 8), the IB number from (Pl) is sent to (Pl), and when it hits the second projection plane (8), the A from (Pa), 1 is sent to CPx) VC. .
半反射面（７）と全反射面（８）を波長依存性のある面
としてもよい。例えば半反射面（７）が波長０．８μｍ
の光を半反射する膜を被着した面、全反射面（８）が波
長０．８μｍの光を全反射する膜を被着した面であると
き、各ファイバからの出射光が波長０．８μｍの光を含
む波長多重の光であれば、波長０．８μｍの光に対して
は、第２図と同じ動きの光スィッチを構成できる。The semi-reflection surface (7) and the total reflection surface (8) may be wavelength-dependent surfaces. For example, the semi-reflective surface (7) has a wavelength of 0.8 μm.
When the surface (8) is coated with a film that semi-reflects light with a wavelength of 0.8 μm, and the total reflection surface (8) is coated with a film that partially reflects light with a wavelength of 0.8 μm, the emitted light from each fiber has a wavelength of 0.8 μm. In the case of wavelength multiplexed light including light of 8 μm, an optical switch having the same movement as shown in FIG. 2 can be constructed for light of wavelength 0.8 μm.
また半反射面（７）を場所によって反射率が変化するよ
うにしたときは、第２図（ｂ）において光を当てる半反
射面の位置によって（Ｐｌ）と（Ｐａ）に送られる光の
出力の割合を自由に変えられる光スィッチが構成できる
。In addition, when the reflectance of the semi-reflective surface (7) changes depending on the location, the output of light sent to (Pl) and (Pa) depends on the position of the semi-reflective surface to which light is applied in Figure 2 (b). It is possible to construct an optical switch that can freely change the ratio of
実施例としてあげた光スィッチはいずれも従来と異なシ
方向性結合器を使用しておらず、そのために安価で挿入
損失が大きくなることはない１゜〔発明の効果〕
以上説明したように本発明の元スイッチは、片面が透過
面と半反射面と全反射面に分けられた誘電体板よシつく
られるので、入力信号を２つの出力ボートの両方或はど
ちらか一方に送ったシ、２つの入力信号の両方或はどち
ら力１一方を８４ブコボートに送ったシするのに方向性
ｒ１１合罰をイ吏月１する必要がなくなり、そのだめに
従４ｅより経済的で４申入損失が小さい。None of the optical switches listed as examples use a directional coupler different from conventional ones, and therefore they are inexpensive and do not have large insertion losses. The original switch of the invention is made of a dielectric plate with one side divided into a transmission surface, a semi-reflection surface, and a total reflection surface, so it is possible to send an input signal to both or one of the two output ports. It is no longer necessary to send both or either of the two input signals to the 84 bus boat, and it is therefore more economical than the 4e and reduces the loss of the 4 signal. small.
第１図は従来の元スイッチを表噌りす模式図、第２図は
本発明実施例を表わす断面１閃である。
（６）・・・誘電体板
（力・・・半反射面
（８）・・全反射面
（９）・・透過面
７４’棟人 ４Ｆ理十 則 近 憲 佑 （ｔより１１
名）第 １ 図
第２図
第 ２ 図
第 ２ 図
第 ２ 図
＜ｆ）FIG. 1 is a schematic diagram of a conventional original switch, and FIG. 2 is a cross-sectional view showing an embodiment of the present invention. (6)...Dielectric plate (force...semi-reflective surface (8)...total reflective surface (9)...transmissive surface 74'Toto 4F Riju Noriyoshi Chika (11 from t)
Figure 1 Figure 2 Figure 2 Figure 2 Figure 2 <f)
Claims (2)
たｄ′１ｄ体板を具備することを特徴とする元スイッチ
。(1) An original switch characterized in that one side is provided with a d'1d body plate divided into a transmission surface, a semi-reflection surface, and a total reflection surface.
徴とする特許請求の範囲第１項記載の光スィッチ。(2) The optical switch according to claim 1, wherein the semi-reflective surface and the total reflective surface have wavelength dependence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22403883A JPS60117211A (en) | 1983-11-30 | 1983-11-30 | Optical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22403883A JPS60117211A (en) | 1983-11-30 | 1983-11-30 | Optical switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60117211A true JPS60117211A (en) | 1985-06-24 |
Family
ID=16807617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22403883A Pending JPS60117211A (en) | 1983-11-30 | 1983-11-30 | Optical switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60117211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61132918A (en) * | 1984-12-03 | 1986-06-20 | Nippon Telegr & Teleph Corp <Ntt> | Method for switching optical transmission line without momentary break and its optical switch |
| JPH01171452U (en) * | 1988-05-25 | 1989-12-05 | ||
| JPH023514U (en) * | 1988-06-21 | 1990-01-10 |
-
1983
- 1983-11-30 JP JP22403883A patent/JPS60117211A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61132918A (en) * | 1984-12-03 | 1986-06-20 | Nippon Telegr & Teleph Corp <Ntt> | Method for switching optical transmission line without momentary break and its optical switch |
| JPH01171452U (en) * | 1988-05-25 | 1989-12-05 | ||
| JPH023514U (en) * | 1988-06-21 | 1990-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4671613A (en) | Optical beam splitter prism | |
| US5850493A (en) | Device for focusing light through an optical component | |
| US6415067B1 (en) | N x M optical switch | |
| CN112099239B (en) | Compact waveguide display optical system and AR glasses | |
| CN210982809U (en) | Compact optical path hybrid device | |
| JPS60117211A (en) | Optical switch | |
| KR101409307B1 (en) | Mems-based pellicle beamsplitter | |
| US5777796A (en) | Pentaprism combiner/splitter | |
| US5621832A (en) | Beam splitter and optical coupler using the same | |
| JP3290578B2 (en) | Optical isolator with Fabry-Perot ripple reducer | |
| JPS59201026A (en) | Polarizing element | |
| JPH05203829A (en) | Loop-back optical connector device | |
| JPH11264954A (en) | Optical circulator and optical switch | |
| JPH0830789B2 (en) | Polarization splitting prism | |
| JP2000155289A (en) | Optical isolator | |
| JPS60159821A (en) | Optical branching and coupling device | |
| JP2766531B2 (en) | 4-port optical switch | |
| JP2001013308A (en) | Prism type beam splitter | |
| JP2005352038A (en) | Optical branching module | |
| JPS63106716A (en) | Optical switch | |
| JPS62269106A (en) | Optical branching and coupling device | |
| JP2000214328A (en) | Polarization composite element and polarization composite module | |
| JP2002116393A (en) | Waveguide type optical switch | |
| JPS63183402A (en) | Polarized light separating and synthesizing prism for optical device | |
| JPS6232455B2 (en) |