Title :
Phase-noise suppression in optical CDMA network using orthogonal polarization techniques
Author :
Huang, Jen-Fa ; Yen, Chih-Ta ; Chen, Bo-Hau
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan
Abstract :
A spectral-polarization coding (SPC) optical code-division multiple-access (OCDMA) configuration structured over arrayed-waveguide grating (AWG) router is proposed. Polarization-division double balanced photo-detector is adopted to enhance system performance. The experimental results demonstrate the system embedded with orthogonal state-of-polarization (SOP) will suppress effectively phase-induced intensity-noise (PIIN). By mathematical analysis, the coding schemes and interference eliminations are described in detail. The signal-to-noise ratio (SNR) is derived by taking the effect of PIIN into account. The result indicates that there would be up to 9-dB SNR improvement than the conventional spectral-amplitude coding (SAC) structures with Walsh-Hadamard codes.
Keywords :
Hadamard codes; code division multiple access; code division multiplexing; interference suppression; photodetectors; Walsh-Hadamard codes; arrayed-waveguide grating router; coding schemes; conventional spectral- amplitude coding structures; interference eliminations; mathematical analysis; optical CDMA network; optical code-division multiple-access; orthogonal polarization techniques; phase-induced intensity-noise; phase-noise suppression; polarization-division double balanced photo-detector; signal-to-noise ratio; spectral-polarization coding; Bit error rate; Multiaccess communication; Optical arrays; Optical fiber networks; Optical fiber polarization; Optical mixing; Optical polarization; Phased arrays; Signal to noise ratio; System performance; Walsh-Hadamard codes; arrayed-waveguide grating; optical code-division multiple-access; phase-induced intensity noise; spectral amplitude coding; spectral polarization coding; state of polarization;
Conference_Titel :
Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2373-6
Electronic_ISBN :
978-1-4244-2374-3
DOI :
10.1109/CHINACOM.2008.4685205
