title: High-power and high-accuracy integrating sphere radiometer: design, characterization, and calibration.
abstract: We describe the design, characterization, and calibration of a high-power and high-accuracy transfer standard for optical power measurements in fibers based on an integrating sphere radiometer working from -50 to +30 dBm. The integrating sphere radiometer has been calibrated in the spectral range 1250-1650 nm by use of an electrically calibrated pyroelectric radiometer and four tunable laser diodes. The total uncertainty obtained is less than +/-0.8% for these wavelength and power ranges.
authors.affiliation: Instituto de Física Aplicada, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Carrasco-Sanz
authors.forename: Sonia
authors.initials: S
authors.lastname: Martín-López
authors.forename: Pedro
authors.initials: P
authors.lastname: Corredera
authors.forename: Miguel
authors.initials: M
authors.lastname: González-Herráez
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Hernanz