JPH03100811U

JPH03100811U -

Info

Publication number: JPH03100811U
Application number: JP884590U
Authority: JP
Priority date: 1990-01-30
Filing date: 1990-01-30
Publication date: 1991-10-22

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の構造を示す図であ
る。第２図は本考案の第２の実施例の構造を示す
図である。第３図は従来の光アイソレータ内蔵型
半導体レーザモジユールの構造を示す図である。１……半導体レーザ、２……ヒートシンク、３
……チツプキヤリア、４……金属ベース、７……
レンズ、８……スライドリング、９……フエルー
ル、１０……ペルチエ素子、１１……ケース。 FIG. 1 is a diagram showing the structure of an embodiment of the present invention. FIG. 2 is a diagram showing the structure of a second embodiment of the present invention. FIG. 3 is a diagram showing the structure of a conventional semiconductor laser module with a built-in optical isolator. 1... Semiconductor laser, 2... Heat sink, 3
...Chipukiyaria, 4...Metal base, 7...
Lens, 8...Slide ring, 9...Ferrule, 10...Peltier element, 11...Case.

Claims

[Scope of Claim for Utility Model Registration] 1. A semiconductor laser module with a built-in optical isolator, which includes a semiconductor laser and an optical isolator mounted in a metal case and is equipped with an optical fiber for optical output, which includes the semiconductor laser, chip carrier, metal base, and light condenser. at least a lens for use in the optical fiber, the optical fiber whose tip end is protected by a metal tube, a slide ring having an inner diameter slightly larger than the metal tube, the metal case having a side wall for introducing light to pass through the optical fiber, and an optical isolator. A semiconductor module with a built-in optical isolator, characterized in that a joint portion between the metal base and the optical isolator has a fitting structure. 2. The semiconductor laser module with a built-in optical isolator according to claim 1, wherein the optical isolator has an annular convex portion centered on the optical axis on its tip surface, and the metal base has an annular convex portion centered on the optical axis. It has a circular recess with an inner diameter slightly larger than the outer diameter of the
A semiconductor laser module with a built-in optical isolator, wherein the annular convex portion of the optical isolator is fitted into a circular recess of the metal base, and the optical isolator is fixed to the metal base. 3. The semiconductor laser module with a built-in optical isolator according to claim 1, wherein the metal base has an annular convex portion around the circular recess having the same outer diameter as the outer diameter of the optical isolator, A semiconductor laser module with a built-in optical isolator, wherein the optical isolator is fixed to the metal base by YAG laser welding with the outer periphery of the end aligned with the annular convex portion of the metal base. .