SEMICONDUCTOR LASER LIGHT SOURCE

Title:

SEMICONDUCTOR LASER LIGHT SOURCE

Document Type and Number:

WIPO Patent Application WO/2017/056474

Kind Code:

A1

Abstract:

In order to provide a semiconductor laser light source, which is ultra-small, and has a narrow spectrum width, this semiconductor laser light source is provided with: a single-mode semiconductor laser having a first end and a second end facing each other; and an optical filter that is provided outside of the single-mode semiconductor laser. The single-mode semiconductor laser and the optical filter are formed on a same substrate. The optical filter is provided close to the first end of the single-mode semiconductor laser. The optical filter operates as a light negative-feedback optical circuit that performs negative feedback of original output light to the first end of the single-mode semiconductor laser, said original output light having been outputted from the first end of the single-mode semiconductor laser. Output light from the second end of the single-mode semiconductor laser is to be outputted to the outside.

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Inventors:

YAMAZAKI HIROYUKI (JP)
YASAKA HIROSHI (JP)

Application Number:

PCT/JP2016/004339

Publication Date:

April 06, 2017

Filing Date:

September 26, 2016

Export Citation:

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Assignee:

NEC CORP (JP)
UNIV TOHOKU (JP)

International Classes:

H01S5/026

Foreign References:

JPH04343283A	1992-11-30
JPH06326410A	1994-11-25

Attorney, Agent or Firm:

IKEDA, Noriyasu et al. (JP)

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