JPS6354124U

JPS6354124U -

Info

Publication number: JPS6354124U
Application number: JP14716486U
Authority: JP
Priority date: 1986-09-26
Filing date: 1986-09-26
Publication date: 1988-04-12

Description

[Brief explanation of the drawing]

第１図は、本考案の光アイソレータの側面概略
断面図である。第２ａ図、第３ａ図、第４ａ図お
よび第５ａ図は、本考案の光アイソレータの種々
の構成例を示す分解斜視図である。第２ｂ図、第
３ｂ図、第４ｂ図および第５ｂ図は、それぞれ第
２ａ図、第３ａ図、第４ａ図および第５ａ図に示
す本考案の光アイソレータの側面断面図である。
第６ａ図および第６ｂ図は、光アイソレータの原
理を説明するための斜視図である。第７ａ図は、
従来の光アイソレータを示す斜視図、第７ｂ図は
第７ａ図に示す従来の光アイソレータの側面断面
図である。符号の説明１……光アイソレータ、２……アイ
ソレータ光路、２１……偏光子、２２……フアラ
デー回転子、２３……検光子、３……ケース、３
１……固定部、３２，３２ａ，３２ｂ……回転部
、３２１……支持部、３２２……回転つまみ、３
２３……孔部、３２４……光フアイバ係止部、４
……磁石、５……バネ、６……光フアイバ、７…
…ロツドレンズ、８……支持材、９……光コネク
タ、１０……入射ビーム、１１……戻りビーム。 FIG. 1 is a schematic side sectional view of the optical isolator of the present invention. 2a, 3a, 4a, and 5a are exploded perspective views showing various configuration examples of the optical isolator of the present invention. 2b, 3b, 4b and 5b are side sectional views of the optical isolator of the present invention shown in FIGS. 2a, 3a, 4a and 5a, respectively.
FIGS. 6a and 6b are perspective views for explaining the principle of an optical isolator. Figure 7a shows
FIG. 7b is a perspective view showing a conventional optical isolator, and FIG. 7b is a side sectional view of the conventional optical isolator shown in FIG. 7a. Explanation of symbols 1... Optical isolator, 2... Isolator optical path, 21... Polarizer, 22... Faraday rotator, 23... Analyzer, 3... Case, 3
1... Fixed part, 32, 32a, 32b... Rotating part, 321... Supporting part, 322... Rotating knob, 3
23... Hole portion, 324... Optical fiber locking portion, 4
...Magnet, 5...Spring, 6...Optical fiber, 7...
... Rod lens, 8 ... Support material, 9 ... Optical connector, 10 ... Incident beam, 11 ... Return beam.

Claims

[Claims for Utility Model Registration] (1) A polarizer, a Faraday rotator, and an analyzer are integrated to form an isolator optical path, and a magnet is disposed in the Faraday rotator, and the polarization plane of the polarizer and the incident beam are An optical isolator characterized in that the isolator optical path or the isolator optical path and the magnet are housed in a case so as to be rotatable around an optical axis so that the planes of polarization can match. (2) The case includes a rotating part having a support part that supports the isolator optical path or the isolator optical path and the magnet, and a box-shaped fixed part, and the rotating part is rotatably supported on the fixed part. The optical isolator according to claim 1, which has been registered as a utility model. (3) The rotating part has a rotating knob that is formed integrally with the supporting part and at least a part of which is exposed to the outside of the fixed part, and the rotating part has a rotating knob that is at least partially exposed to the outside of the fixed part, and the rotating part has a rotating knob between an end surface in the optical axis direction of the rotating part and the fixed part. 2. The optical isolator according to claim 2, which is a registered utility model, and is configured such that the rotating part is rotated around the optical axis by the rotating knob with a spring interposed therebetween. (4) The fixed part or the rotating part has a hole for inserting an optical fiber, and the fixed part or the rotating part has an optical fiber locking part in the hole. The optical isolator according to item 3. (5) Utility model registration claims 2 to 4, wherein the fixing part has a hole for inserting an optical fiber, and this hole has a protruding part that protrudes to the outside of the fixing part. The optical isolator according to any of paragraphs. (6) The optical isolator according to claim 4 or 5, wherein the hole has a rod lens therein. (7) The optical isolator according to claim 5 or 6, wherein the protrusion has an optical connector. (8) The optical isolator according to any one of claims 4 to 7, wherein an optical fiber is integrated into the hole.