Title:
LASER ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/172393
Kind Code:
A1
Abstract:
This laser element, which has a two-dimensional DFB diffraction grating structure provided with at least two types of linear protruding section arrays that have different array directions, has a low laser oscillation threshold value. The DFB diffraction grating structure is preferably a two-dimensional DFB diffraction grating structure that has a concentric rectangular shape such as a concentric square shape, and an organic layer is preferably formed directly on the DFB diffraction grating structure.
Inventors:
SANDANAYAKA SANGARANGE DON ATULA (JP)
SENEVIRATHNE ADIKARI MUDIYANSELAGE CHATHURANGANIE (JP)
KARUNATHILAKA KOHONA PAHALA WALAWWE BUDDHIKA SANJEEWA BANDARA (JP)
MATSUSHIMA TOSHINORI (JP)
ADACHI CHIHAYA (JP)
SENEVIRATHNE ADIKARI MUDIYANSELAGE CHATHURANGANIE (JP)
KARUNATHILAKA KOHONA PAHALA WALAWWE BUDDHIKA SANJEEWA BANDARA (JP)
MATSUSHIMA TOSHINORI (JP)
ADACHI CHIHAYA (JP)
Application Number:
PCT/JP2021/006969
Publication Date:
September 02, 2021
Filing Date:
February 25, 2021
Export Citation:
Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
KOALA TECH INC (JP)
KOALA TECH INC (JP)
International Classes:
H05B33/02; H01L51/50; H01S5/042; H01S5/12; H01S5/36
Foreign References:
| JP2005277080A | 2005-10-06 | |||
| JP2013021205A | 2013-01-31 | |||
| JP2019526937A | 2019-09-19 | |||
| JPH07263797A | 1995-10-13 | |||
| JPH10209555A | 1998-08-07 |
Attorney, Agent or Firm:
SIKS & CO. (JP)
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