Title:
RIDGE-WAVEGUIDE LASER DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/033970
Kind Code:
A1
Abstract:
A conventional waveguide laser device has a problem of not being able to obtain linear polarization when using an isotropic laser medium in a core. A ridge-waveguide laser device according to the present invention includes: a substrate; a core bonded to the substrate, including a laser medium, and having a higher refractive index than the substrate; and a cladding bonded to the core, constituting a ridge waveguide with the core, comprising a birefringent material having an ordinary refractive index and an extraordinary refractive index lower than the refractive index of the core, the ordinary refractive index and the extraordinary refractive index being different from each other.
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Inventors:
WATANABE YOJIRO (JP)
YANAGISAWA TAKAYUKI (JP)
YANAGISAWA TAKAYUKI (JP)
Application Number:
PCT/JP2016/073987
Publication Date:
February 22, 2018
Filing Date:
August 17, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01S3/063
Domestic Patent References:
| WO2010134178A1 | 2010-11-25 | |||
| WO2009016703A1 | 2009-02-05 |
Foreign References:
| JPH10307225A | 1998-11-17 | |||
| JPH10123343A | 1998-05-15 | |||
| JPH11352348A | 1999-12-24 |
Other References:
M.-K. CHIN ET AL.: "High-index-contrast waveguides and devices", APPLIED OPTICS, vol. 44, no. 15, 20 May 2005 (2005-05-20), pages 3077 - 3086, XP055368314
See also references of EP 3487015A4
See also references of EP 3487015A4
Attorney, Agent or Firm:
INABA, Tadahiko et al. (JP)
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