Columbia University

Cold Spring Harbor Laboratory

Xingchen Ji

Michal Lipson

Christine P Hendon

Xinwen Yao

Alexander Klenner

Yu Gan

Yoshitomo Okawachi

Aseema Mohanty

Brian Stern

Mohammad Amin Tadayon

Bok Young Kim

Jae K Jang

Adam Kepecs

Qian Li

Alexander L Gaeta

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.

Fully integrated chip platform for electrically pumped frequency comb generation

A method of providing optical coherence tomography (OCT) imaging may comprise using an on-chip frequency comb source interfaced with an OCT system by a circulator as an imaging source and reconstructing OCT images from resulting spectral data from target tissue illuminated by the imaging source.

Microresonator-frequency-comb-based platform for clinical high-resolution optical coherence tomography

Provided are devices that have a distal portion configured to be implanted in a brain of a subject. The distal portion includes one or more emitters configured to emit light in the visible spectrum. The device includes a proximal portion configured to be external to the brain of the subject while the distal portion is implanted, wherein the proximal portion includes at least one waveguide in optical communication with the one or more emitters. The at least one waveguide defines a cross-sectional width less than 500 nm. The at least one waveguide is optionally coupled to a heating element that is optionally configured to adjust a phase of light within the at least one waveguide.

Thermally tunable low broadband waveguides and related systems and methods

Optical frequency combs and related methods, devices, and systems are described. An example device can comprise a waveguide configured to optically couple to an optical source and at least one optical resonator optically coupled to the waveguide. The one or more of the at least one optical resonator can be tuned such that an optical frequency comb is generated based on mode interaction between two different modes of the at least one optical resonator. The device can comprise an output coupled to the waveguide and configured to output the optical frequency comb.

Tunable optical frequency comb generator in microresonators

An on-chip laser includes a gain portion, a mirror in communication with the gain portion, a waveguide in communication with the gain portion, and a resonator optically coupled to the waveguide at an optical coupling. The resonator has a circular shape. The waveguide and the resonator are separate from the gain portion.

Compact narrow-linewidth integrated laser

Growing community of inventors

New York, NY, United States of America

Xingchen Ji