title: Optical high-power nonlinearity comparison between the National Institute of Standards and Technology and the National Metrology Institute of Japan at 1480 nm.
abstract: We compare the results of measurements of the nonlinearity of high-power optical fiber powermeters (OFPMs) by two national metrology institutes (NMIs): the National Institute of Standards and Technology (NIST-USA) and the National Metrology Institute of Japan/National Institute of Advanced Industrial Science and Technology (NMIJ/AIST-Japan) at a wavelength of 1480 nm. The nonlinearity and range discontinuity of a commercial OFPM were measured from 1 mW to 500 mW by use of a superposition method (both laboratories) and from 1 mW to 250 mW by use of a comparison method (NMIJ only). Measurement results showed largest differences of less than 1.6 parts in 10(3), which is within the combined expanded (k = 2) uncertainty for both laboratories.
authors.affiliation: National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USA. igor@boulder.nist.gov
authors.forename: I
authors.initials: I
authors.lastname: Vayshenker
authors.forename: S
authors.initials: S
authors.lastname: Yang
authors.forename: K
authors.initials: K
authors.lastname: Amemiya
authors.forename: S
authors.initials: S
authors.lastname: Mukai
authors.forename: T
authors.initials: T
authors.lastname: Zama