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Title: Quantum cascade laser with monolithically integrated passive waveguide

Abstract

A photonic integrated circuit device includes a passive waveguide section formed over a substrate, a quantum cascade laser (QCL) gain section formed over the substrate and adjacent to the passive waveguide section, and a taper section disposed between and in contact with each of the passive waveguide section and the QCL gain section. In some embodiments, the passive waveguide section includes a passive waveguide core layer disposed between a first cladding layer and a second cladding layer. In some examples, the QCL gain section includes a QCL active region disposed between a first confinement layer and a second confinement layer, where the QCL active region has a lower index of refraction than each of the first and second confinement layers. In some embodiments, the taper section is configured to optically couple the QCL gain section to the passive waveguide section.

Inventors:
;
Issue Date:
Research Org.:
Transwave Photonics, LLC, Austin, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1860218
Patent Number(s):
11211773
Application Number:
16/405,827
Assignee:
TRANSWAVE PHOTONICS, LLC. (Austin, TX)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
DOE Contract Number:  
SC0012575
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/07/2019
Country of Publication:
United States
Language:
English

Citation Formats

Jung, Seungyong, and Belkin, Mikhail A. Quantum cascade laser with monolithically integrated passive waveguide. United States: N. p., 2021. Web.
Jung, Seungyong, & Belkin, Mikhail A. Quantum cascade laser with monolithically integrated passive waveguide. United States.
Jung, Seungyong, and Belkin, Mikhail A. Tue . "Quantum cascade laser with monolithically integrated passive waveguide". United States. https://www.osti.gov/servlets/purl/1860218.
@article{osti_1860218,
title = {Quantum cascade laser with monolithically integrated passive waveguide},
author = {Jung, Seungyong and Belkin, Mikhail A.},
abstractNote = {A photonic integrated circuit device includes a passive waveguide section formed over a substrate, a quantum cascade laser (QCL) gain section formed over the substrate and adjacent to the passive waveguide section, and a taper section disposed between and in contact with each of the passive waveguide section and the QCL gain section. In some embodiments, the passive waveguide section includes a passive waveguide core layer disposed between a first cladding layer and a second cladding layer. In some examples, the QCL gain section includes a QCL active region disposed between a first confinement layer and a second confinement layer, where the QCL active region has a lower index of refraction than each of the first and second confinement layers. In some embodiments, the taper section is configured to optically couple the QCL gain section to the passive waveguide section.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {12}
}

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