Integrated tunable DBR quantum cascade lasers with 30 cm-1 tuning range at 4.7 &#956;m

Liwei Cheng; Xing Chen; Fow-Sen Choa; Terrance Worchesky

doi:10.1117/12.842397

12 February 2010 Integrated tunable DBR quantum cascade lasers with 30 cm^-1 tuning range at 4.7 μm

Liwei Cheng, Xing Chen, Fow-Sen Choa, Terrance Worchesky

Proceedings Volume 7616, Novel In-Plane Semiconductor Lasers IX; 761618 (2010) https://doi.org/10.1117/12.842397
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

Citation Download Citation

Liwei Cheng, Xing Chen, Fow-Sen Choa, and Terrance Worchesky "Integrated tunable DBR quantum cascade lasers with 30 cm^-1 tuning range at 4.7 μm", Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 761618 (12 February 2010); https://doi.org/10.1117/12.842397

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available