US 12,218,483 B2
Tunable RF synthesizer based on offset optical frequency combs
Matthew Wade Puckett, Phoenix, AZ (US); Jianfeng Wu, Tucson, AZ (US); Karl D. Nelson, Plymouth, MN (US); and Chad Hoyt, Roseville, MN (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Jan. 21, 2022, as Appl. No. 17/581,692.
Prior Publication US 2023/0238773 A1, Jul. 27, 2023
Int. Cl. G02B 6/293 (2006.01); G02F 1/01 (2006.01); H01S 5/00 (2006.01); H01S 5/0683 (2006.01); H01S 5/40 (2006.01); H03K 5/1252 (2006.01); H01S 5/12 (2021.01)
CPC H01S 5/0683 (2013.01) [G02F 1/0102 (2013.01); H01S 5/0085 (2013.01); H01S 5/4012 (2013.01); H03K 5/1252 (2013.01); G02F 2203/56 (2013.01); H01S 5/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
at least two lasers, wherein a first laser in the at least two lasers generates a first laser output and a second laser in the at least two lasers generates a second laser output;
a coupler that receives the first laser output and the second laser output;
a resonator having a first section and a second section, wherein the first section is coupled to the second section, wherein the coupler couples the first laser output and the second laser output into the resonator;
a splitter that couples the first section to the second section, wherein the splitter splits a first proportion of the first laser output and a second proportion of the second laser output onto different optical paths within the resonator to generate optical frequency combs associated with different resonant frequencies of each of the different optical paths; and
a controller that controls the splitter to change a size of the first proportion in relation to the first laser output and a size of the second proportion in relation to the second laser output.