Experimental investigation on the high chip rate of 2D incoherent optical CDMA system

Guorui Su; Rong Wang; Tao Pu; Tao Fang; Jilin Zheng; Huatao Zhu; Weijiang Wu

doi:10.1117/12.2193312

5 August 2015 Experimental investigation on the high chip rate of 2D incoherent optical CDMA system

Guorui Su, Rong Wang, Tao Pu, Tao Fang, Jilin Zheng, Huatao Zhu, Weijiang Wu

Proceedings Volume 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing; 96190J (2015) https://doi.org/10.1117/12.2193312
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

An innovative approach to realise high chip rate in OCDMA transmission system is proposed and experimentally investigation, the high chip rate is achieved through a 2-D wavelength-hopping time-spreading en/decoder based on the supercontinuum light source. The source used in the experiment is generated by high nonlinear optical fiber (HNLF), Erbium-doped fiber amplifier (EDFA) which output power is 26 dBm, and distributed feed-back laser diode which works in the gain switch state. The span and the flatness of the light source are 20 nm and 3 dB, respectively, after equalization of wavelength selective switch (WSS). The wavelength-hopping time-spreading coder can be changed 20 nm in the wavelength and 400 ps in the time, is consist of WSS and delay lines. Therefore, the experimental results show that the chip rate can achieve 500 Gchip/s, in the case of 2.5 Gbit/s, while keeping a bit error rate below forward error correction limit after 40 km transmission.

Citation Download Citation

Guorui Su, Rong Wang, Tao Pu, Tao Fang, Jilin Zheng, Huatao Zhu, and Weijiang Wu "Experimental investigation on the high chip rate of 2D incoherent optical CDMA system", Proc. SPIE 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 96190J (5 August 2015); https://doi.org/10.1117/12.2193312

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KEYWORDS

Light sources

Switches

Computer programming

Optical encoders

Optical amplifiers

Fiber amplifiers

Forward error correction

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