JPS6181620U

JPS6181620U -

Info

Publication number: JPS6181620U
Application number: JP16757184U
Authority: JP
Priority date: 1984-11-05
Filing date: 1984-11-05
Publication date: 1986-05-30

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例のブロツク図、
第２図は本考案の第２の実施例のブロツク図であ
る。１……レーザ発振器、１ａ……レーザビーム、
２……ビームエキスパンダ部、１０ａ……凸レン
ズ、１０ｂ……凹レンズ、３……集光レンズ保持
機構、２０……集光レンズ、４……光フアイバ入
射端保持機構、３０……光フアイバ、３１……コ
ア、３２……クラツト層、４０……部分透過鏡。 FIG. 1 is a block diagram of the first embodiment of the present invention;
FIG. 2 is a block diagram of a second embodiment of the present invention. 1... Laser oscillator, 1a... Laser beam,
2... Beam expander section, 10a... Convex lens, 10b... Concave lens, 3... Condensing lens holding mechanism, 20... Condensing lens, 4... Optical fiber input end holding mechanism, 30... Optical fiber, 31...Core, 32...Crat layer, 40...Partially transmitting mirror.

Claims

[Scope of utility model registration request]

An optical fiber coupling optical system that couples a laser beam emitted from a laser oscillator to an optical fiber includes a beam expander mechanism for converting the diameter of the laser beam emitted from the laser oscillator, and a beam expander mechanism for converting the diameter of the laser beam emitted from the laser oscillator; a condensing lens for coupling the incident light; a condensing lens holding mechanism that holds the condensing lens and is movable in a two-dimensional direction perpendicular to the optical axis; and a condensing lens holding mechanism that holds the laser beam input end of the optical fiber. , and an optical fiber input end holding mechanism movable in three-dimensional directions.