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We experimentally revisit a technique of low-cost multiparameter monitor for optical performance monitoring based on low frequency polarization modulation. A simplified calibration procedure, which significantly reduces the mathematical complexity and processing effort is proposed. Validation is achieved by carrying out relative optical power, wavelength, and differential group delay measurements. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1820-1824, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26956 [ABSTRACT FROM AUTHOR]

The operation of a continuous-wave (CW) single-wavelength pumped fibre optic parametric amplifier operating in the S+-band with simultaneous wavelength conversion to the C-band is demonstrated. Peak gain of 25 dB at 1518 nm and gains higher than 10 dB from 1510 to 1530 nm were obtained using 480 m of a fibre with a nonlinear coefficient γ = 12.2 W-1 km-1, requiring a pump power of 660 mW. Simultaneously, idler wavelengths were generated in the C-band with a peak conversion efficiency of 25 dB at 1552 nm. [ABSTRACT FROM AUTHOR]