Title:
LASER ELEMENT AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/249357
Kind Code:
A1
Abstract:
[Problem] To suppress diffraction loss during laser resonance. [Solution] This laser element comprises: a laminated semiconductor layer that has a first reflection layer for a first wavelength and an active layer that performs surface emission of the first wavelength; a laser medium that is disposed on the rear side of an optical axis of the laminated semiconductor layer, and that has a second reflection layer for a second wavelength on a first plane facing the laminated semiconductor layer, and a third reflection layer for the first wavelength on a second plane that is on the opposite side of the first plane; a fourth reflection layer for the second wavelength and disposed on the second plane or further to the rear side of the optical axis than the second plane; a first resonator that causes the light of the first wavelength to resonate between the first reflection layer and the third reflection layer; and a second resonator that causes the light of the second wavelength to resonate between the second reflection layer and the fourth reflection layer. The first resonator has an optical element that condenses the light of the first wavelength in the optical axis direction, and the optical axis of the laminated semiconductor layer, the optical axis of the laser medium, and the optical axis of the optical element are disposed on the same axis.
Inventors:
HIRANO GO (JP)
Application Number:
PCT/JP2021/020071
Publication Date:
December 01, 2022
Filing Date:
May 26, 2021
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
H01S3/0941; H01S3/113; H01S5/026
Domestic Patent References:
| WO2018083877A1 | 2018-05-11 | |||
| WO2020137136A1 | 2020-07-02 |
Foreign References:
| JPH1084169A | 1998-03-31 | |||
| US20120170109A1 | 2012-07-05 |
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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