Title :
Multiwavelength fiber-amplifier cascades with equalization employing Mach-Zehnder optical filter
Author :
Pan, Jin-Yi ; Ali, M.A. ; Elrefaie, A.F. ; Wagner, R.E.
Author_Institution :
Dept. of Electr. Eng., City Univ. of New York, NY, USA
Abstract :
This paper introduces a simple optimization method for determining the transmittance characteristics of an MZ filter gain equalizer required for optical networks using 980-nm or 1480-nm pumped EDFA cascades. This approach is shown capable of supporting 10 WDM signals spaced 2 nm apart over a 20-nm optical bandwidth (1540-1560 nm) up to a cascade of 10 amplifiers, allowing a total system gain of more than 150 dB with inter-channel power differences of less than 5 dB.
Keywords :
equalisers; erbium; fibre lasers; optical communication equipment; optical pumping; optical waveguide filters; optimisation; wavelength division multiplexing; 1480 nm; 150 dB; 980 nm; MZ filter gain equalizer; Mach-Zehnder optical filter; WDM signals; equalization; inter-channel power difference; multiwavelength fiber-amplifier cascades; optical bandwidth; optical networks; pumped EDFA cascades; simple optimization method; total system gain; transmittance characteristics; Bandwidth; Equalizers; Erbium-doped fiber amplifier; Optical fiber filters; Optical fiber networks; Optical filters; Optical pumping; Optimization methods; Stimulated emission; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
