Effect of Pump Dithering at Each Stage of Cascaded Fiber Optical Parametric Amplifier

Fatin Nabilah Mohamad Salleh (Universiti Tun Hussein Onn Malaysia)
Nor Shahida Mohd Shah (Universiti Tun Hussein Onn Malaysia)
Nurulanati Othman (Universiti Tun Hussein Onn Malaysia)
Rahmat Talib (Universiti Tun Hussein Onn Malaysia)
Munirah Ab. Rahman (Universiti Tun Hussein Onn Malaysia)

TELKOMNIKA (Telecommunication Computing Electronics and Control)
Vol 15, No 3: September 2017

Cascaded fiber optical parametric amplifier (FOPA) can enhance gain and bandwidth. The gain and bandwidth can be further enhanced by dithering the FOPA pump. However, to our knowledge, the effects of a pump dithering at every stage of cascaded FOPA have not been discussed. The study of performance at every stage of cascaded FOPA is quite interesting and beneficial in designing the system. Here, we analyzed, using OptiSystem software, each stage of a cascaded FOPA, when there was a pump dithering and not. The results showed that the pump dithering enhanced the gain and broaden the bandwidth at every stage. The gain and bandwidth obtained with the pump dithering were 27 dB and 20 nm, respectively. On the other hand, when there was no pump dithering, the gain and bandwidth were 9 dB and 12 nm, respectively.