Nonlinearity of high-power optical fiber power meters at 1480 nm.
We describe a calibration system that measures the nonlinearity of optical fiber power meters (OFPMs) at a maximum power of 0.6 W and a minimum power of 0.2 mW at 1480 nm. The system is based on the triplet superposition method. This system measures the nonlinearity of OFPMs by using correction factors at different powers; the system is an important tool for characterizing OFPMs at high powers in the S band. The measurement uncertainties, typically better than 0.2%, k = 2, associated with the high-power nonlinearity system are also described.
Vayshenker
Igor
I
National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USA. igor@boulder.nist.gov
Yang
Shao
S
Swafford
Ralph
R