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  • Extended-Range Laser Wavelength Meters
Aug 2006
Bristol Instruments Inc.Request Info
VICTOR, N.Y., Aug. 4, 2006 -- Bristol Instruments Inc. has expanded the operational wavelength range of the infrared version of its model 621 laser wavelength meter, originally 1.5 to 4.0 µm, to 5.0 µm to satisfy new requirements for applications such as high-resolution laser spectroscopy.

Bristol-621.jpgTwo models of the 621 series are available. The 621A is used for the most demanding experiments, measuring absolute wavelength to the highest accuracy of ± 0.2 parts per million.

For experiments that are less exacting, the 621B, with an accuracy of ± 1.0 part per million, is a lower-priced alternative. Three different operational wavelength ranges are available: VIS (350-1100 nm), NIR (500-1700 nm) and IR (1.5 - 5.0 µm).

For more information, visit:; e-mail:

Bristol Instruments Inc.
Suite 204
10 East Main St.
Victor, NY 14564
Phone: (585) 924-2620
Fax: (585) 924-2623


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laser spectroscopy
That part of the science involved in the study of the theory and interpretation of spectra that uses the unique characteristics of the laser as an integral part in the development of information for analysis. Raman spectroscopy and emission spectroscopy are two areas where lasers are used.
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