JPS638725U

JPS638725U -

Info

Publication number: JPS638725U
Application number: JP10271386U
Authority: JP
Priority date: 1986-07-04
Filing date: 1986-07-04
Publication date: 1988-01-21

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す要部平面図、
第２図は偏光ビームスプリツタにずれがあつても
光軸にずれが発生しない状態を示す説明図、第３
図は他の実施例を示す要部平面構成図、第４図は
従来例を示す要部平面構成図である。１ａ〜１ｄ……光フアイバ、２ａ〜２ｄ……屈
折率分布型レンズ、３……スイツチブロツク、６
……第１のスイツチング素子、７……第２のスイ
ツチング素子、９……第１の偏光ビームスプリツ
タ、１０……第２の偏光ビームスプリツタ。 FIG. 1 is a plan view of essential parts showing an embodiment of the present invention;
Figure 2 is an explanatory diagram showing a state in which the optical axis does not shift even if there is a shift in the polarizing beam splitter.
The figure is a plan configuration diagram of main parts showing another embodiment, and FIG. 4 is a plan configuration diagram of main parts showing a conventional example. 1a to 1d...Optical fiber, 2a to 2d...Gradient index lens, 3...Switch block, 6
... first switching element, 7 ... second switching element, 9 ... first polarization beam splitter, 10 ... second polarization beam splitter.

Claims

[Scope of utility model registration request]

first and second polarized beam splitters that are arranged to face each other and separate and combine the polarization of incident light; and vibrations of linearly polarized light that is arranged between the polarized beam splitters and transmitted between the polarized beam splitters. In the optical switch having a switching element for controlling the direction, the first and second polarizing beam splitters are parallelograms, and both sides on the side where light does not enter or exit are total reflection surfaces. light switch.