Abstract

We derive an analytical theory for the noise figure of an undepleted and lossless fiber optical parametric amplifier (FOPA). Both the signal and the wavelength converted idler are investigated. Our theory is applicable for both an ideal pump power source, as well as a noisy one. We find that a noisy pump source can severely degrade the performance at high gain due to the stochastic gain-variations the signal and idler will experience. The theory is compared with Monte Carlo simulations of the FOPA and an excellent agreement is obtained. Simulations in the gain-depleted region show the possibility to reach below quantum-limited, phase-insensitive amplification for single channel transmission.

© 2004 IEEE

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J. Lightwave Technol. (2)

N. A. Olsson, "Lightwave systems with optical amplifiers", J. Lightwave Technol., vol. 7, pp. 1071-1082, July 1989 .

P. O. Hedekvist and P. A. Andrekson, "Noise characteristics of fiber-based optical phase conjugators", J. Lightwave Technol., vol. 17, pp. 74-79, Jan. 1999.

Other (13)

X. Zhang and B. F. Jorgensen, "Noise characteristics and optimum fiber length of spectral inversion using four-wave mixing in a dispersion shifted fiber", Opt. Fiber Technol., vol. 3, no. 1, pp. 28-43, Jan. 1997.

M. N. Islam and O. Boyraz, "Fiber parametric amplifiers for wavelength band conversion", IEEE J. Select. Topics Quantum Electron., vol. 8, pp. 527-537, May/June 2002.

JDS Uniphase. Data Sheet CQF938/50 High Power 1550 nm DFB Laser.

K. Inoue and T. Mukai, "Experimental study on noise characteristics of a gain-saturated fiber optical parametric amplifier", J. Lightwave Technol. , vol. 20, pp. 969-973, May/June 2002.

M. Karlsson, "Four-wave mixing in fibers with randomly varying zero-dispersion wavelength", J. Opt. Soc. Amer., vol. 15, no. 8, pp. 2265-2269, Aug. 1998.

C. J. McKinstrie, S. Radic and A. R. Chraplyvy, "Parametric amplifiers driven by two pump waves", IEEE J. Select. Topics Quantum Electron., vol. 8, pp. 538-547, May/June 2002.

J. Hansryd, P. A. Andrekson, M. Westlund, J. Lie and P.-O. Hedekvist, "Fiber-based parametric amplifiers and their applications", IEEE J. Select. Topics Quantum Electron., vol. 8, pp. 506-520, May/June 2002.

J. Hansryd and P. A. Andrekson, "Broad-band continuous-wave-pumped fiber optical parametric amplifier with 49-dB gain and wavelength-conversion efficiency", IEEE Photon. Technol. Lett., vol. 13, pp. 194 -196, Mar. 2001.

J. D. Ralston, G.-P. Li, A. Mathur, G. Rogers and T. Lo, "High-power fiber-coupled 1550 nm DFB laser modules for externally-modulated fiber-optic transmission", Electron. Lett., vol. 33, no. 3, pp. 230-232, Jan. 1997.

A. Yariv, "Signal-to-noise considerations in fiber links with periodic or distributed optical amplification", Opt. Lett., vol. 15, no. 19, pp. 1064-1066, Oct. 1990.

R. H. Stolen and J. E. Bjorkholm, "Parametric amplification and frequency conversion in optical fibers", IEEE J. Select. Topics Quantum Electron. , vol. QE-18, pp. 1062-1072, July 1982.

Y. Yamamoto and T. Mukai, "Fundamentals of optical amplifiers", Optical and Quantum Electron., vol. 21, pp. S1-S14, June 1989 .

E. Berglind and L. Gillner, "Optical quantum noise treated with classical electrical network theory", IEEE J. Quantum Electron., vol. 30, pp. 846-853, Mar. 1994.

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