Frequency-resolved noise figure measurements of phase (in)sensitive fiber optical parametric amplifiers.
نویسندگان
چکیده
We measure the frequency-resolved noise figure of fiber optical parametric amplifiers both in phase-insensitive and phase-sensitive modes in the frequency range from 0.03 to 3 GHz. We also measure the variation in noise figure due to the degradation in pump optical signal to noise ratio and also as a function of the input signal powers. Noise figure degradation due to stimulated Brillouin scattering is observed.
منابع مشابه
Phase-Sensitive Amplification in Optical Fibers
We describe the progress in fiber-based phase-sensitive parametric amplifiers in both frequency-degenerate and frequency-nondegenerate configurations. We discuss their applications for phase regeneration, as well as for lumped and distributed noiseless amplification. 2005 Optical Society of America OCIS codes: (060.2320) Fiber optics amplifiers and oscillators; (190.4410) Nonlinear optics, par...
متن کاملRaman-noise induced quantum limits for χ nondegenerate phase-sensitive amplification and quadrature squeezing
We present a quantum theory of nondegenerate phase-sensitive parametric amplification in a χ nonlinear medium. The non-zero response time of the Kerr (χ) nonlinearity determines the quantum-limited noise figure of χ parametric amplification, as well as the limit on quadrature squeezing. This non-zero response time of the nonlinearity requires coupling of the parametric process to a molecular-vi...
متن کاملNoise-figure limit of fiber-optical parametric amplifiers and wavelength converters: experimental investigation.
Recent theoretical work predicts that the quantum-limited noise figure of a x(3)-based fiber-optical parametric amplifier operating as a phase-insensitive in-line amplifier or as a wavelength converter exceeds the standard 3-dB limit at high gain. The degradation of the noise figure is caused by the excess noise added by the unavoidable Raman gain and loss occurring at the signal and the conver...
متن کاملHigher-capacity communication links based on two-mode phase-sensitive amplifiers.
Optical communication links are usually made with erbium-doped fiber amplifiers, which amplify the signal waves in a phase-insensitive (PI) manner. They can also be made with parametric fiber amplifiers, in which the signal waves interact with idler waves. If information is transmitted using only the signals, parametric amplifiers are PI and their noise figures are comparable to those of erbium...
متن کاملFiber optical parametric amplifiers in optical communication systems
The prospects for using fiber optical parametric amplifiers (OPAs) in optical communication systems are reviewed. Phase-insensitive amplifiers (PIAs) and phase-sensitive amplifiers (PSAs) are considered. Low-penalty amplification at/or near 1 Tb/s has been achieved, for both wavelength- and time-division multiplexed formats. High-quality mid-span spectral inversion has been demonstrated at 0.64...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Optics express
دوره 22 23 شماره
صفحات -
تاریخ انتشار 2014