US 11,817,906 B1
Implementing low-loss variable optical delay lines
Mir Ashkan Seyedi, Atlanta, GA (US); and Liron Gantz, Haifa (IL)
Assigned to Mellanox Technologies, Ltd., Yokneam (IL)
Filed by Mellanox Technologies, Ltd., Yokneam (IL)
Filed on Jun. 22, 2022, as Appl. No. 17/846,151.
Int. Cl. H04B 10/40 (2013.01); H04B 10/079 (2013.01); H04B 10/2513 (2013.01); H04B 10/27 (2013.01); H04B 10/2575 (2013.01)
CPC H04B 10/40 (2013.01) [H04B 10/07951 (2013.01); H04B 10/25133 (2013.01); H04B 10/25759 (2013.01); H04B 10/271 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system comprising:
an optical receiver comprising an optical ring resonator comprising a ring waveguide tuned to a resonant wavelength, and at least one electrical component operatively coupled to the optical ring resonator; and
a processing device, operatively coupled to a memory, configured to:
receive optical delay tuning data comprising built-in self-test (BIST) data;
determine, from the optical delay tuning data, an amount of optical delay to be implemented by the optical ring resonator; and
cause, in accordance with the amount of optical delay, an amount of voltage to be applied to the at least one electrical component to modify at least one property of the optical ring resonator, the at least one property comprising an index of refraction of a waveguide material of the ring waveguide.