公开(公告)号：US20150146757A1

公开(公告)日：2015-05-28

申请号：US14614561

申请日：2015-02-05

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yutaka OHKI ,  Satoshi ARAKAWA ,  Shunsuke OKUYAMA ,  Masaki FUNABASHI ,  Junji YOSHIDA ,  Hidehiro TANIGUCHI

IPC: H01S5/026

CPC classification number: H01S3/094003 ,  H01S5/0014 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/1064 ,  H01S5/227 ,  H01S2301/185

Abstract: A semiconductor laser module includes: a semiconductor laser outputting a laser light from an output-facet side of a waveguide which has a first narrow portion identical in width, a wide portion wider than the first narrow portion, a second narrow portion narrower than the wide portion, a first tapered portion between the first narrow portion and the wide portion and increasing in width toward the wide portion, and a second tapered portion between the wide portion and the second narrow portion and decreasing in width toward the second narrow portion; and an optical fiber to which the laser light is input has an optical-feedback unit reflecting a predetermined wavelength of light. The semiconductor laser is enclosed in a package with one end of the optical fiber. The optical-feedback unit has a first optical-feedback unit set at a predetermined reflection center wavelength determining an oscillation wavelength and a second optical-feedback unit.

Abstract translation: 半导体激光器模块包括：半导体激光器，其输出来自波导的输出侧面的激光，该激光具有宽度相同的第一窄部分，宽于第一窄部分的宽部分，比宽度窄的第二窄部分 在所述第一窄部与所述宽部之间的第一锥形部分，朝向所述宽部扩大宽度，以及在所述宽部与所述第二窄部之间的第二锥形部，并且朝向所述第二狭窄部宽度减小; 并且输入激光的光纤具有反映预定波长的光的光学反馈单元。 半导体激光器被封装在具有光纤的一端的封装中。 光反馈单元具有设置在确定振荡波长的预定反射中心波长的第一光反馈单元和第二光反馈单元。

公开(公告)号：US20140314113A1

公开(公告)日：2014-10-23

申请号：US14322401

申请日：2014-07-02

Applicant: Furukawa Electric Co., Ltd.

Inventor： Yutaka OHKI ,  Satoshi ARAKAWA ,  Shunsuke OKUYAMA ,  Masaki FUNABASHI ,  Junji YOSHIDA ,  Hidehiro TANIGUCHI

IPC: H01S5/20 ,  H01S5/022

CPC classification number: H01S5/20 ,  H01S5/0014 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/1064 ,  H01S5/227 ,  H01S2301/185

Abstract: A semiconductor laser outputs a laser light from an output facet of a waveguide having an index waveguide structure, via a lens system. The waveguide includes, in order from a rear facet opposite to the output facet, a first narrow portion, a wide portion that is wider than the first narrow portion, a second narrow portion narrower than the wide portion, a first tapered portion formed between the first narrow portion and the wide portion, which expands toward the wide portion, and a second tapered portion formed between the wide portion and the second narrow portion, which narrows toward the second narrow portion. Each of the first narrow portion, the wide portion, and the second narrow portion has a uniform width.

Abstract translation: 半导体激光器经由透镜系统从具有折射率波导结构的波导的输出面输出激光。 波导包括从与输出小面相对的后小面的顺序，包括比第一窄部宽的第一狭窄部分，比宽部分窄的第二窄部分，形成在第一窄部分之间的第一锥形部分 第一窄部分和朝向宽部分扩展的宽部分，以及形成在宽部分和第二窄部分之间的朝向第二窄部分变窄的第二锥形部分。 第一狭窄部分，宽部分和第二窄部分中的每一个具有均匀的宽度。