US 12,255,433 B2
Continuous wave optical two-way time transfer
Jonathan David Roslund, Pleasanton, CA (US); and Arman Cingoz, Pleasanton, CA (US)
Assigned to Vector Atomic, Inc., Pleasanton, CA (US)
Filed by Vector Atomic, Inc., Pleasanton, CA (US)
Filed on Oct. 11, 2022, as Appl. No. 18/045,591.
Prior Publication US 2024/0136786 A1, Apr. 25, 2024
Int. Cl. H01S 3/13 (2006.01); G02F 2/02 (2006.01)
CPC H01S 3/13 (2013.01) [G02F 2/02 (2013.01); G02F 2203/56 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
an optical subsystem configured to:
lock a frequency comb to a clock in a first platform, and
lock two continuous wave (CW) optical signals in the first platform to the frequency comb, wherein the two CW optical signals have different frequencies; and
an electrical subsystem configured to determine a timing deviation between the clock in the first platform and a clock in a second platform based on exchanging, in free space, the two CW optical signals generated in the first platform with two CW optical signals generated in the second platform.