Title :
Limitation on gain of bidirectional amplifier in amplified WDM-PON using broadband light source seeded optical sources
Author :
Kang, Byoung-Wook ; Kim, Chul Han
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Seoul, Seoul, South Korea
Abstract :
We investigated the effect of in-band crosstalk on the bidirectional gain in amplified wavelength-division multiplexed passive optical networks (WDM-PONs). In a bidirectional transmission system over a single fiber, the system´s performance could be degraded by the in-band crosstalk generated with a double Rayleigh backscattering within a transmission fiber and a gain of bidirectional optical amplifier. Thus, the maximum gain of bidirectional optical amplifier in an amplified WDM-PON was evaluated with a broadband light source (BLS) seeded optical source. Using two simple bidirectional amplifiers without any optical components for the suppression of reflected signals, we found that the bidirectional gain could be increased to be 27 dB with a BLS seeded optical source.
Keywords :
Rayleigh scattering; amplification; light sources; optical crosstalk; optical fibre amplifiers; passive optical networks; wavelength division multiplexing; amplified WDM-PON; bidirectional optical amplifier; broadband light source; double Rayleigh backscattering; gain; in-band crosstalk; optical sources; transmission fiber; wavelength division multiplexed passive optical networks; Optical amplifiers; Optical crosstalk; Optical fiber amplifiers; Optical reflection; Passive optical networks; Stimulated emission;
Conference_Titel :
Photonics Global Conference (PGC), 2010
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9882-6
DOI :
10.1109/PGC.2010.5705996