Title :
An Enhanced Detection Technique for Spectral Amplitude Coding Optical CDMA Systems
Author :
Alhassan, Ahmed M. ; Saad, N.M. ; Badruddin, Nasreen
Author_Institution :
Electr. & Electron. Eng. Dept., Univ. Technologi Petronas (UTP), Tronoh, Malaysia
fDate :
7/1/2011 12:00:00 AM
Abstract :
In this letter, we investigate the use of the multiphotodiode balanced detection (MPBD) scheme proposed by Williams in IEEE Photonics Technology Letters, (volume 8, pages 148-150, January 1996), to reduce phase-induced intensity noise (PIIN) in spectral amplitude coding optical code-division multiple access (SAC OCDMA). The MPBD is based on balancing the power reaching the balanced detector by utilizing multiple numbers of photodiodes. Since PIIN is signal dependent, by reducing the power reaching each photodiode, the overall PIIN can be reduced. Results show that MPBD outperforms the conventional balanced detector at a cost of added complexity.
Keywords :
code division multiple access; code division multiplexing; photodiodes; IEEE photonics technology letters; Williams; enhanced detection technique; multiphotodiode balanced detection scheme; phase-induced intensity noise; photodiodes; spectral amplitude coding optical CDMA systems; spectral amplitude coding optical code-division multiple access; Bit error rate; Encoding; Multiaccess communication; Noise; Optical fibers; Photodiodes; Balanced detection; multiphotodiode balanced detection (MPBD); phase-induced intensity noise (PIIN); spectral amplitude coding optical code-division multiple access (SAC OCDMA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2141658
