Title :
Noise suppression and optical ASE modulation in saturated semiconductor optical amplifiers
Author :
Koyama, Fumio ; Uenohara, Hiroyuki
Author_Institution :
Microsyst. Res. Center, Tokyo Inst. of Technol., Yokohama, Japan
Abstract :
We present the modeling and experiment on the noise suppression of high speed modulation signals using a saturated semiconductor optical amplifier (SOA). The noise suppression is enhanced in a high frequency region with increasing the length of a saturated SOA. A novel optical preamplifier using optical modulation of amplified spontaneous emission from a saturated SOA is also presented, exhibiting receiver sensitivity improvements at 10 Gbps. In addition, some results on noise suppression in an optical signal regenerator based on cascaded wavelength converters are discussed.
Keywords :
interference suppression; optical modulation; optical receivers; optical repeaters; optical wavelength conversion; semiconductor optical amplifiers; superradiance; SOA; amplified spontaneous emission; cascaded wavelength converter; high speed modulation signal; noise suppression; optical ASE modulation; optical preamplifier; optical signal regenerator; receiver sensitivity; saturated semiconductor optical amplifier; High speed optical techniques; Optical modulation; Optical noise; Optical receivers; Optical saturation; Optical sensors; Repeaters; Semiconductor device noise; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399096
