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Laser Wavelength Meter
Aug 2005
Bristol Instruments Inc.Request Info
Measures to 10 ppm Accuracy
VICTOR, N.Y., Aug. 17 -- Bristol Instruments Inc., a new company founded by three former employees of Burleigh Instruments, has introduced its model 521 laser wavelength meter. The model 521 is intended for scientists and engineers who need to know the absolute wavelength of a laser but not to the highest accuracy.

The 521 laser wavelength meter uses Michelson interferometer-based technology to measure the absolute wavelength of virtually any continuous wave laser to an accuracy of ± 10 ppm (± 0.01 nm at 1000 nm). A built-in moire scale is used as a reference to provide continuous calibration to guarantee the accuracy of the wavelength measurement.

Two versions of the model 521 are available: one that operates over the wavelength range of 350 to 1100 nm and the other over the wavelength range of 500 to 1700 nm. A convenient, pre-aligned optical fiber input accepts the laser under test. Measurements are made at a rate of 10 Hz, and a USB interface is used for effortless integration into an experiment.

For more information, visit:; e-mail:

Bristol Instruments, Inc.
10 East Main Street
Victor, NY 14564
Phone: (585) 924-2620 ext. 111


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