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Quantum cascade laser with monolithically integrated passive waveguide

Patent ·
OSTI ID:1860218
;
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.
Research Organization:
Transwave Photonics, LLC, Austin, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0012575
Assignee:
TRANSWAVE PHOTONICS, LLC. (Austin, TX)
Patent Number(s):
11,211,773
Application Number:
16/405,827
OSTI ID:
1860218
Country of Publication:
United States
Language:
English

References (13)

Quantum cascade lasers transfer-printed on silicon-on-sapphire journal November 2017
Quantum cascade lasers grown on silicon journal May 2018
Monolithic coupling of QCLs in evenescent waveguides on InP conference February 2015
Field distribution in waveguide of mid-infrared strain-compensated InAlAs/InGaAs/InP quantum cascade laser journal January 2017
Design of mid-IR and THz quantum cascade laser cavities with complete TM photonic bandgap conference June 2007
Dispersion of effective refractive indices of mid-infrared quantum cascade lasers journal November 2012
Monolithic integration of mid-infrared quantum cascade lasers coupled with passive InGaAs waveguides conference January 2018
InP-based quantum cascade lasers monolithically integrated onto silicon journal January 2018
Quantum cascade laser on silicon journal January 2016
Mid-infrared quantum cascade lasers transfer-printed on silicon-on-sapphire conference January 2017
Homogeneous photonic integration of mid-infrared quantum cascade lasers with low-loss passive waveguides on an InP platform journal January 2019
Mid-infrared integrated photonics on silicon: a perspective journal December 2017
Tapered active-region, mid-infrared quantum cascade lasers for complete suppression of carrier-leakage currents conference February 2012

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