Patent · US Active

Tapered waveguide high-power quantum cascade lasers

US9077153B2 · kind B2 · utility

17Cited by

1References

3Claims

0Family size

Inventors

Richard Maulini · Los Angeles, US
Arkadiy Lyakh · Santa Monica, US
Alexei Tsekoun · Los Angeles, US
C. Kumar N. Patel · Los Angeles, US

Key dates

Filing date	Dec 27, 2012
Grant date	Jul 7, 2015
Priority date	—
Expiry date	May 6, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01S2301/166
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An improved quantum cascade laser, the improvement comprising a longitudinally non-uniform dielectric waveguide. The waveguide includes a longitudinally straight section and a longitudinally tapered section. The length of the tapered section is between 5% and 50% of the total cavity length. The tapered section tapers at a taper angle from the facet width to the ridge width. The taper angle is smaller than the delineation angle of the waveguide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.