Research Article
Optical CDMA with Embedded Spectral-Polarization Coding over Double Balanced Differential-Detector
@INPROCEEDINGS{10.1007/978-3-642-04648-3_33, author={Jen-Fa Huang and Chih-Ta Yen and Bo-Hau Chen}, title={Optical CDMA with Embedded Spectral-Polarization Coding over Double Balanced Differential-Detector}, proceedings={AccessNets. Third International Conference on Access Networks, AccessNets 2008, Las Vegas, NV, USA, October 15-17, 2008. Revised Papers}, proceedings_a={ACCESSNETS}, year={2012}, month={5}, keywords={spectral polarization coding optical code-division multiple-access arrayed-waveguide grating polarization-division double balanced differential-detector phase-induced intensity noise Walsh-Hadamard codes}, doi={10.1007/978-3-642-04648-3_33} }- Jen-Fa Huang
Chih-Ta Yen
Bo-Hau Chen
Year: 2012
Optical CDMA with Embedded Spectral-Polarization Coding over Double Balanced Differential-Detector
ACCESSNETS
Springer
DOI: 10.1007/978-3-642-04648-3_33
Abstract
A spectral-polarization coding (SPC) optical code-division multiple-access (OCDMA) configuration structured over arrayed-waveguide grating (AWG) router is proposed. The polarization-division double balanced detector is adopted to execute difference detection and enhances system performance. 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. Mathematical deriving results of the SNR demonstrate the system embedded with the orthogonal state of polarization (SOP) will suppress effectively phase-induced intensity noise (PIIN). In addition, we will analyze the relations about bit error rate (BER) vs. the number of active users under the different encoding schemes and compare them with our proposed scheme. The BER vs. the effective power under the different encoding scheme with the same number of simultaneous active user conditions are also revealed. Finally, the polarization-matched factor and the difference between simulated and experimental values are discussed.