Scalable Coherent Photonic Array on a Silicon Platform

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-19-C-1002
Agency Tracking Number: F171-116-0637
Amount: $732,757.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: AF171-116
Solicitation Number: 2017.1
Solicitation Year: 2017
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-01-25
Award End Date (Contract End Date): 2021-01-25
Small Business Information
10455 Pacific Center Court, San Diego, CA, 92121
DUNS: 841440832
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mr. Chris Sexton
 (858) 646-5478
Business Contact
 Deborah Doyle
Phone: (858) 646-5300
Research Institution
In this Phase 2 SBIR Trex and Columbia propose to fabricate the SWIR optical comb concept that was developed in Phase 1 that is centered at 1550nm and has > 100 lines with 100 GHz FSR, 200+ uW/line, >45 dB side-mode suppression, and all lines are phased together. This is a hybrid device consisting of a reflective semiconductor optical amplifier (RSOA) that is coupled to a dual-ring Si3N4 (SiN) microresonator. The microresonator serves as both the optical comb generator, and the output mirror for the (RSOA). The goal of this Phase 2 SBIR is to prove that this device can be fabricated at a silicon foundry for low-cost manufacturability. To enable this we propose to etch the ring-resonator waveguides into the silicon, and then bond a thin layer of SiN over the top. Simulations show that with the SiN in close proximity to the silicon waveguide that most of the mode energy is concentrated in the SiN layer and sees its dispersion. The hybrid device has a smaller footprint and more compact package than separate source and resonator solutions. The dual rings give the microresonator flexibility in compensating for manufacturing errors in the waveguide fabrication, thus improving device yield.

* Information listed above is at the time of submission. *

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