Spectral tuning and mode competition of quantum cascade lasers studied by time-resolved Fourier transform spectroscopy

F. Fuchs; B. Kirn; Ch. Mann; Q. Yang; W. Bronner; B. Raynor; K. Köhler; J. Wagner

doi:10.1117/12.685379

17 October 2006 Spectral tuning and mode competition of quantum cascade lasers studied by time-resolved Fourier transform spectroscopy

F. Fuchs, B. Kirn, Ch. Mann, Q. Yang, W. Bronner, B. Raynor, K. Köhler, J. Wagner

Author Affiliations +

Proceedings Volume 6386, Optical Methods in the Life Sciences; 63860I (2006) https://doi.org/10.1117/12.685379
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

We present a study of the spectral characteristics of Fabry-Perot quantum cascade lasers in pulsed mode operation applying a time resolution of 3 ns in combination with a high spectral resolution of 0.02 cm^-1. With this technique the laser spectra were investigated applying pulse lengths ranging between 100 ns and 20 μs and duty cycles between 0.01% and 10%. Depending on the current density and operation temperature, the spectra exhibit complex line patterns, which indicate mode competition caused by gain saturation effects.

Citation Download Citation

F. Fuchs, B. Kirn, Ch. Mann, Q. Yang, W. Bronner, B. Raynor, K. Köhler, and J. Wagner "Spectral tuning and mode competition of quantum cascade lasers studied by time-resolved Fourier transform spectroscopy", Proc. SPIE 6386, Optical Methods in the Life Sciences, 63860I (17 October 2006); https://doi.org/10.1117/12.685379

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