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Published on: February 13, 2018
Wavemeter calibration by frequency comb
1National Institute of Standards and Technology, 100 Bureau Dr, Gaithersburg, MD 20899, United States of America.
Abstract:
Upgrades to the vacuum wavelength calibration service at the National Institute of Standards and Technology are reported. The instrumentation centerpiece is an optical frequency comb stabilized to a GPS-disciplined oscillator, thereby providing direct traceability to the SI second. Historically, the service has covered lasers at the popular interferometry wavelengths red and green. Recently, capability has been added for calibrating wavemeters at multiple telecom wavelengths in the range (1520 < λ < 1570) nm. For most commercially available wavemeters, the test uncertainty ratio is about 104.
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