low noise, laser current driver, stability, Hall-Libbrecht
We present a low-noise, high modulation-bandwidth design for a laser current driver with excellent long-term stability. The driver improves upon the commonly used Hall–Libbrecht design. The current driver can be operated remotely by way of a microprocessing unit, which controls the current set point digitally. This allows precise repeatability and improved accuracy and stability. It also allows the driver to be placed near the laser for reduced noise and for lower phase lag when using the modulation input. We present the theory of operation for our driver in detail, and give a thorough characterization of its stability, noise, set-point accuracy and repeatability, temperature dependence, transient response, and modulation bandwidth.
Original Publication Citation
Erickson, Christopher J., Marshall Van Zijll, Greg Doermann, and Dallin S. Durfee."An ultrahigh stability, low-noise laser current driver with digital control." Review of Scientific Instruments 79 (28).
BYU ScholarsArchive Citation
Erickson, Christopher J.; Van Zijll, Marshall; Doermann, Greg; and Durfee, Dallin S., "An ultrahigh stability, low-noise laser current driver with digital control" (2008). All Faculty Publications. 174.
Physical and Mathematical Sciences
Physics and Astronomy
© 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://link.aip.org/link/?RSINAK/79/073107/1
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