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A low-temperature external cavity diode laser for broad wavelength tuning

Tobias, William G. and Rosenberg, Jason S. and Hutzler, Nicholas R. and Ni, Kang-Kuen (2016) A low-temperature external cavity diode laser for broad wavelength tuning. Review of Scientific Instruments, 87 (11). Art. No. 113104. ISSN 0034-6748. doi:10.1063/1.4967231.

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We report on the design and characterization of a low-temperature external cavity diode laser (ECDL) system for broad wavelength tuning. The performance achieved with multiple diode models addresses the scarcity of commercial red laser diodes below 633 nm, which is a wavelength range relevant to the spectroscopy of many molecules and ions. Using a combination of multiple-stage thermoelectric cooling and water cooling, the operating temperature of a laser diode is lowered to −64 °C, more than 85 °C below the ambient temperature. The laser system integrates temperature and diffraction grating feedback tunability for coarse and fine wavelength adjustments, respectively. For two different diode models, single-mode operation is achieved with 38 mW output power at 616.8 nm and 69 mW at 622.6 nm, more than 15 nm below their ambient temperature free-running wavelengths. The ECDL design can be used for diodes of any available wavelength, allowing individual diodes to be tuned continuously over tens of nanometers and extending the wavelength coverage of commercial laser diodes.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Tobias, William G.0000-0002-2728-2613
Rosenberg, Jason S.0000-0003-3410-5196
Hutzler, Nicholas R.0000-0002-5203-3635
Additional Information:© 2016 AIP Publishing LLC. Received 5 July 2016; accepted 24 October 2016; published online 10 November 2016. We thank Lee R. Liu, Yichao Yu, and John M. Doyle for helpful discussions. W. G. T. acknowledges the support from the Harvard Quantum Optics Center. This work is supported by the NSF through the Harvard-MIT Center for Ultracold Atoms and the Arnold and Mabel Beckman Foundation.
Funding AgencyGrant Number
Harvard Quantum Optics CenterUNSPECIFIED
Harvard-MIT Center for Ultracold AtomsUNSPECIFIED
Arnold and Mabel Beckman FoundationUNSPECIFIED
Issue or Number:11
Record Number:CaltechAUTHORS:20170831-073856381
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Official Citation:A low-temperature external cavity diode laser for broad wavelength tuning William G. Tobias, Jason S. Rosenberg, Nicholas R. Hutzler, and Kang-Kuen Ni Review of Scientific Instruments 2016 87:11
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81007
Deposited By: Ruth Sustaita
Deposited On:05 Sep 2017 18:15
Last Modified:15 Nov 2021 19:40

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