Title :
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
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;
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
DOI :
10.1109/CLEO.2002.1033560
