Share Email Print
cover

Proceedings Paper

Integrated tunable DBR quantum cascade lasers with 30 cm-1 tuning range at 4.7 μm
Author(s): Liwei Cheng; Xing Chen; Fow-Sen Choa; Terrance Worchesky
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 report the fabrication and measurement results of an integrated distributed Bragg reflector (DBR) tunable buriedheterstructure (BH) quantum-cascade-laser (QCL) emitting around λ ~ 4.7 μm. We also demonstrated a special laser device bonding technique by utilizing two submounts for the gain and DBR grating sections of the laser. As a result, separated temperature controls of the two sections were successfully accomplished. At 293K, a wavelength tuning from 4.605 μm to 4.670 μm was obtained when the grating section temperature was changed by a miniature thermoelectric (TE) cooler. This is corresponding to a tuning range of 65 nm or equivalently 29.831 cm-1. The tuning efficiency is 0.0325 nm/mA. This technology is particularly desirable for chemical sensing, spectroscopic measurements and medical applications.

Paper Details

Date Published: 12 February 2010
PDF: 8 pages
Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 761618 (12 February 2010); doi: 10.1117/12.842397
Show Author Affiliations
Liwei Cheng, Univ. of Maryland, Baltimore County (United States)
Xing Chen, Univ. of Maryland, Baltimore County (United States)
Fow-Sen Choa, Univ. of Maryland, Baltimore County (United States)
Terrance Worchesky, Univ. of Maryland, Baltimore County (United States)


Published in SPIE Proceedings Vol. 7616:
Novel In-Plane Semiconductor Lasers IX
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

© SPIE. Terms of Use
Back to Top