US 12,457,045 B2
Integrated CMOS photonic and electronic WDM communication system using optical frequency comb generators
Matthew Sysak, Santa Clara, CA (US); and Brandon Buscaino, Santa Clara, CA (US)
Assigned to Ayar Labs, Inc., San Jose, CA (US)
Filed by Ayar Labs, Inc., Santa Clara, CA (US)
Filed on Jul. 11, 2023, as Appl. No. 18/350,530.
Application 18/350,530 is a continuation of application No. 17/321,380, filed on May 14, 2021, granted, now 11,700,068, issued on Jul. 11, 2023.
Claims priority of provisional application 63/026,676, filed on May 18, 2020.
Prior Publication US 2023/0353254 A1, Nov. 2, 2023
Int. Cl. H04B 10/50 (2013.01); H04B 10/80 (2013.01); H04Q 11/00 (2006.01)
CPC H04B 10/807 (2013.01) [H04Q 11/0005 (2013.01); H04Q 2011/0009 (2013.01); H04Q 2011/0015 (2013.01); H04Q 2011/0016 (2013.01); H04Q 2011/0041 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An electro-optical chip, comprising:
a plurality of transmit macros, each of the plurality of transmit macros having a respective substantially U-shaped optical waveguide including a linear-shaped optical input waveguide segment, a curved waveguide segment, and a linear-shaped optical output waveguide segment, each of the plurality of transmit macros having a set of microring resonators positioned within an evanescent optical coupling distance of the linear-shaped optical output waveguide segment, each of the microring resonators configured to modulate light of a particular wavelength traveling through the linear-shaped optical output waveguide segment;
a plurality of optical outputs located on a same side of the electro-optical chip, the plurality of optical outputs respectively optically connected to the linear-shaped optical output waveguide segments of the plurality of transmit macros;
an optical input port configured to optically connect to a remote single-wavelength optical power supply to receive a single wavelength of continuous wave laser light from the remote single-wavelength optical power supply;
a comb generator having an optical input optically connected to the optical input port such that the single wavelength of continuous wave laser light is received at the optical input of the comb generator, the comb generator configured to generate a plurality of distinct wavelengths of continuous wave light from the single wavelength of continuous wave light that is received through the optical input port, the comb generator having an optical output, the comb generator configured to transmit the plurality of distinct wavelengths of continuous wave light through the optical output of the comb generator; and
an optical power splitter having an optical input optically connected to the optical output of the comb generator so as to receive the plurality of distinct wavelengths of continuous wave light from the comb generator, the optical power splitter having a plurality of optical outputs respectively optically connected to the linear-shaped optical input waveguide segments of the plurality of transmit macros, the optical power splitter configured to supply a portion of each of the plurality of distinct wavelengths of continuous wave light through each of the plurality of optical outputs of the optical power splitter to each of the linear-shaped optical input waveguide segments of the plurality of transmit macros.