Stabilization of a CO2 pump laser using external CH3OH stark-cell modulation |
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| Affiliation: | 2. Electromagnetic Energy Engineering, Osaka University, Suita, Osaka 565, Japan;3. Institute of Plasma Physics, Nagoya University, Nagoya 464, Japan;4. Department of Applied Physics, Nagoya University, Nagoya 464, Japan;1. Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150001, PR China;2. Department of Physics, Harbin Institute of Technology, Harbin 150001, PR China;3. School of Materials and Engineering, Harbin Institute of Technology, Harbin 150001, PR China;1. Department of Chemistry, University of Missouri, Columbia, MO 65211, United States;2. University of Missouri Research Reactor Center, Columbia, MO 65211, United States;3. Department of Radiation Oncology, University of Washington, Seattle, WA 98105, United States;4. Department of Chemistry, University of Washington, Seattle, WA 98105, United States;5. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98105, United States;6. Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, United States;1. Centro de Química-Física Molecular and IN-Institute of Nanoscience and Nanotechnology Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;2. Centro de Química, Vila Real Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;1. W.M. Keck Foundation Biotechnology Resource Laboratory, School of Medicine, Yale University, New Haven, CT 06510, USA;2. Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, CT 06520, USA;3. Yale Center for Medical Informatics, School of Medicine, Yale University, New Haven, CT 06510, USA;4. Department of Anesthesiology, School of Medicine, Yale University, New Haven, CT 06510, USA;5. Department of Emergency Medicine, School of Medicine, Yale University, New Haven, CT 06510, USA;6. VA Connecticut Healthcare System, West Haven, CT 06516, USA;7. Department of Computer Science, Yale University, New Haven, CT 06520, USA;8. Yale Center for Genome Analysis, West Campus, Yale University, Orange, CT 06477, USA;9. Yale West Campus Analytical Core, West Campus, Yale University, West Haven, CT 06516, USA;10. Yale Bioinformatics Resource, School of Medicine, Yale University, New Haven, CT 06510, USA;11. Department of Psychiatry, School of Medicine, Yale University, New Haven, CT 06510, USA;12. Department of Cellular & Molecular Physiology, School of Medicine, Yale University, New Haven, CT 06510, USA;13. Systems Biology Institute, Yale University, West Haven, CT 06516, USA |
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| Abstract: | In order to stabilize the 118.8 μm CH3OH laser output, frequency stabilization of the CW 9P(36) CO2 laser pump is carried out using external CH3OH Stark-cell modulation without internal frequency modulation. The CO2 laser output power around the CH3OH absorption center is stabilized to within ±1.0% for 60 min. The frequency stability of the CO2 laser is estimated to be within ±1.4 MHz for 60 min, assuming the output fluctuation to be caused by this frequency fluctuation. As a result of the CO2 pump laser stabilization, an output power stability of about ± 1.0% for 30 min is obtained for the 118.8 μm CH3OH laser. |
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