US 12,015,237 B2
Tunable laser source and light steering apparatus including the same
Dongjae Shin, Seoul (KR); Hyunil Byun, Seongnam-si (KR); and Changgyun Shin, Anyang-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 11, 2020, as Appl. No. 17/095,435.
Claims priority of application No. 10-2020-0067314 (KR), filed on Jun. 3, 2020.
Prior Publication US 2021/0384693 A1, Dec. 9, 2021
Int. Cl. H01S 3/10 (2006.01); G01S 7/481 (2006.01); H01S 3/063 (2006.01); H01S 3/08031 (2023.01); H01S 3/082 (2006.01); H01S 3/083 (2006.01); H01S 3/106 (2006.01); H01S 5/00 (2006.01); H01S 5/02 (2006.01); H01S 5/06 (2006.01); H01S 5/065 (2006.01); H01S 5/10 (2021.01); H01S 5/14 (2006.01)
CPC H01S 3/10023 (2013.01) [H01S 3/0637 (2013.01); H01S 5/0071 (2013.01); H01S 5/0612 (2013.01); H01S 5/0654 (2013.01); H01S 5/1071 (2013.01); H01S 5/142 (2013.01); G01S 7/4814 (2013.01); G01S 7/4817 (2013.01); H01S 3/08031 (2013.01); H01S 3/082 (2013.01); H01S 3/0826 (2013.01); H01S 3/083 (2013.01); H01S 3/106 (2013.01); H01S 5/021 (2013.01); H01S 5/0218 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A tunable laser source comprising:
a plurality of optical waveguides comprising a first waveguide, a second waveguide, and a third waveguide;
at least three optical resonators provided between the plurality of optical waveguides and optically coupled to the plurality of optical waveguides, the at least three optical resonators comprising a first ring resonator, a second ring resonator, and a third ring resonator having different lengths; and
at least two optical amplifiers provided on at least two of the plurality of optical waveguides,
wherein a ratio of a first length of a first optical resonator of the at least three optical resonators to a second length of a second optical resonator of the at least three optical resonators is not an integer, and
wherein the first ring resonator is provided directly adjacent to the first waveguide and the second waveguide, the second ring resonator is provided directly adjacent to the second waveguide and the third waveguide, and the third ring resonator is provided directly adjacent to the first waveguide and the third waveguide.