Gain and noise figure spectrum control algorithm for fiber Raman amplifiers

• Published in: IEEE photonics technology letters Vol. 18; no. 10; pp. 1125 - 1127
• Main Authors: Park, J., Jonghan Park, Pilhan Kim, Namkyoo Park
• Format: Journal Article
• Language: English
• Published: New York IEEE 15-05-2006; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithm design and analysis; Amplification; Amplifiers; Fiber Raman amplifiers (FRAs); Fibers; Gain; iterative method; Mathematical analysis; modeling; Noise; Noise figure; noise figure (NF); Noise levels; Noise measurement; Optical attenuators; Optical fiber amplifiers; Optical noise; Optical pumping; Optical sensors; optimization method; Spectra; Stimulated emission; US Department of Transportation
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2006.873927

In this letter, a fiber Raman amplifier (FRA) design method enabling the simultaneous control of the gain and noise figure (NF) spectra, is proposed. By constructing the FRA with predetermined target forward/backward gain spectra, the spectral error function of NF is calculated, to determine the pump power combination satisfying both the targeting gain and NF spectra. The FRA gain/NF design within 0.1 dB of accuracy is demonstrated for various shapes of target spectra