IP Library Granted Patent US 12,504,668
Granted Patent B2
US 12,504,668 · App. 17/036,166 · Granted Dec 23, 2025

Fully integrated chip platform for electrically pumped frequency comb generation

Inventors: Brian Stern (New York, NY); Michal Lipson (New York, NY); Xingchen Ji (New York, NY); Alexander L Gaeta (New York, NY); Yoshitomo Okawachi (River Edge, NJ)
Assignee: The Trustees of Columbia University in the City of New York
G02F1/39G02F1/3536H01S5/0092H01S5/0615H01S5/5054G02F1/392G02F2203/17G02F2203/56H01S2301/085
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Quick Facts
Patent No.
US 12,504,668
App. No.
17/036,166
Granted
Dec 23, 2025
Kind
B2
Abstract

Example methods, devices, and systems for optical emission are disclosed. An example device can comprise one or more optical filters. The one or more optical filters can be configured to be coupled to an optical amplifier. The device can comprise a microresonator configured to receive an output of the one or more optical filters and output, based on parametric multiwave mixing, a frequency comb. The one or more optical filters and the microresonator can be integrated into a single chip.

Claims (16)

1 . A device, comprising:

a first portion comprising an optical amplifier and a transmissive end; and

a second portion adjacent the transmissive end of the first portion and configured to receive an output from the optical amplifier, wherein the second portion comprises:

one or more tunable optical filters; and

a microresonator configured to:

receive an output of the one or more tunable optical filters,

reflect light back to the one or more tunable optical filters, and

output, based on parametric multiwave mixing, a frequency comb,

wherein the frequency comb comprises a soliton-modelocked comb generated simultaneously with injection locking.

2 . The device of claim 1 , wherein the one or more tunable optical filters are configured, based on an alignment relative to each other, to perform wavelength selection.

3 . The device of claim 1 , wherein the first portion comprises a mirror configured to reflect light back to the transmissive end.

4 . The device of claim 1 , wherein the one or more tunable optical filters and the microresonator are integrated into a single chip.

5 . The device of claim 1 , wherein the one or more tunable optical filters comprises a first microring serially coupled to a second microring, and wherein the one or more tunable optical filters are serially coupled to the microresonator.

6 . The device of claim 1 , wherein the microresonator comprises a high-Q microresonator.

7 . The device of claim 1 , wherein the microresonator being configured to reflect light comprises the microresonator being configured to generate a narrowband back-reflection due to Rayleigh scattering.

8 . The device of claim 1 , wherein the microresonator is configured to function as an output mirror of a laser cavity.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2021
From: STERN, BRIAN; LIPSON, MICHAL; JI, XINGCHEN; GAETA, ALEXANDER L.; OKAWACHI, YOSHITOMO
To: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Reel/Frame 054890/0086 →
Continuity (3)
Continuation PCTUS2019024937 · Mar 29, 2019
Provisional Application 62650086 · Mar 29, 2018
Related Publication 20210026223A1 · Jan 28, 2021
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