Experimental investigation on slow light via four-wave mixing in semiconductor optical amplifier

Abstract

Optical buffer is a key component in all optical information processing systems. Slow light at room temperature via four-wave mixing (FWM) in semiconductor optical amplifier (SOA) is experimentally investigated. Time delay of 0.40 ns is achieved for a sinusoidal modulation signal at 0.1 GHz, corresponding to a delay bandwidth product (DBP) of 0.04. Factors that affect the experimental results are discussed. It is found out that the variable optical delay via FWM in SOA can be controlled either electrically by changing the SOA bias or optically by varying the pump power or pump-probe detuning.

Chromatic Dispersion in Traditional Fiber and Silicon Nanocrystal and Er Doped Fiber Optical Amplifier

“…In order to loss compensation in optical communications, we need optical amplifiers which there are some alternatives such as Si-Nc Er-doped optical amplifier [6][7], semiconductor optical amplifiers (SOA) [8][9][10][11], Erbium doped fiber amplifier (EDFA) [12][13][14][15] and RAMAN amplifiers [16]. Another parameter in optical communication that has very confinement effect is chromatics dispersion [17].…”