Share Email Print
cover

Proceedings Paper • new

Angled facet waveguide quantum cascade laser for external cavity system
Author(s): Yohei Matsuoka; Sylvain Mathonnière; Mykhaylo P. Semtsiv; W. Ted Masselink
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We describe the use of an angled facet to achieve low reflectance of one facet of a quantum cascade laser. A bent waveguide allows one facet to be angled with respect to the waveguide and still use the natural cleavage plane of the crystal. The application of such structures is external-cavity wavelength tunable quantum cascade lasers. The reflectance is studied as a function of angle with an angle of 11.2° reducing the reflectance from 28% to 3.5%. When combined with a dielectric anti-reflection coating, better external-cavity laser performance is possible.

Paper Details

Date Published: 19 February 2018
PDF: 6 pages
Proc. SPIE 10553, Novel In-Plane Semiconductor Lasers XVII, 105531L (19 February 2018); doi: 10.1117/12.2290149
Show Author Affiliations
Yohei Matsuoka, Humboldt-Univ. zu Berlin (Germany)
Sylvain Mathonnière, Humboldt-Univ. zu Berlin (Germany)
Mykhaylo P. Semtsiv, Humboldt-Univ. zu Berlin (Germany)
W. Ted Masselink, Humboldt-Univ. zu Berlin (Germany)


Published in SPIE Proceedings Vol. 10553:
Novel In-Plane Semiconductor Lasers XVII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

© SPIE. Terms of Use
Back to Top