TY - GEN AU - John H Lehman C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1999-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.250-53 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1999 TI - Calibration service for spectral responsivity of laser and optical-fiber power meters at wavelengths between 0.4µm and 1.8 µm: ER -