US 12,266,907 B2
Laser element and method for producing same
Ki Hong Yoon, Daejeon (KR); and Seon Jae Choi, Gumi-si (KR)
Assigned to OE Solutions Co., Ltd., Gwangju (KR)
Appl. No. 17/296,522
Filed by OE Solutions Co., Ltd., Gwangju (KR)
PCT Filed Nov. 27, 2018, PCT No. PCT/KR2018/014667
§ 371(c)(1), (2) Date May 24, 2021,
PCT Pub. No. WO2020/111287, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10-2018-0147533 (KR), filed on Nov. 26, 2018.
Prior Publication US 2022/0021187 A1, Jan. 20, 2022
Int. Cl. H01S 5/02 (2006.01); H01S 5/042 (2006.01); H01S 5/10 (2021.01); H01S 5/20 (2006.01); H01S 5/227 (2006.01)
CPC H01S 5/2031 (2013.01) [H01S 5/0201 (2013.01); H01S 5/0203 (2013.01); H01S 5/04256 (2019.08); H01S 5/1064 (2013.01); H01S 5/2275 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A laser element comprising:
a first clad layer;
an optical waveguide disposed on the first clad layer;
a second clad layer disposed on the optical waveguide;
a first electrode disposed on the second clad layer; and
a dummy clad disposed on the optical waveguide and apart from the second clad layer and the first electrode,
wherein the dummy clad comprises: a first dummy clad disposed at a first corner, a second dummy clad disposed at a second corner, a third dummy clad disposed at a fourth corner, and a fourth dummy clad disposed at a third corner, the first dummy and the third dummy clad having an equal width, and the second dummy clad and the fourth dummy clad having an equal width.