Relative frequency stabilization of two 8.5-micron quantum cascade lasers to 5.6 Hz

Author

Taubman, Matthew S. ; Myers, Tanya L. ; Williams, Rebecca M. ; Cannon, Bret D. ; Capasso, Federico ; Gmachl, C. ; Sivco, D. ; Hutchinson, A.J. ; Cho, Andrew Y.

Author_Institution

Pacific Northwest Lab., Richland, WA, USA

fYear

2002

fDate

24-24 May 2002

Firstpage

159

Abstract

Summary from only given. We demonstrate the successful frequency stabilization of two QCLs to separate optical cavities using highly optimized servo loops based on the Pound-Drever-Hall technique. We present 5.6 Hz FWHM beat notes between these two systems that are stable for periods up to a second. This represents an effective reduction from the recently recorded free-running linewidth of these same lasers of 150 kHz of over 25,000.

Keywords

infrared sources; laser cavity resonators; laser frequency stability; laser transitions; quantum cascade lasers; spectral line breadth; 8.5 micron; Pound-Drever-Hall technique; free-running linewidth; highly optimized servo loops; laser frequency stabilization; optical cavities; quantum cascade lasers; relative frequency stabilization; Frequency; Laser modes; Mirrors; Optical losses; Optical pumping; Optical saturation; Optical scattering; Pump lasers; Quantum cascade lasers; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-706-7

Type

conf

DOI

10.1109/CLEO.2002.1033560

Filename

1033560