Application Of Semiconductor Optoelectronic Devices In The Microwave Photonic Technology

Semiconductor optoelectronic devices have an important role in the microwave photonic technology. We summed up the development and the reach field of the microwave photonics and generalized the generation and procession microwave signal The principle and characteristics of nonlinear effect in the semiconductor optical amplifier and semiconductor laser are analyzed in theory. Designed the experimental program of all-optical clock divider based on feedback control. Analyzing its structure function and comparing it with the structure of D flip-flop, we obtained that the principle of the divider is similar to the principle of D flip-flop, in which the output signal feedback to control the input signal, and explained it at the time domain. In the experimental demonstration, 10 GHz optical clock was generated from a 20 GHz optical clock signal. Simultaneously, we investigated that the operating frequency of the divider is in relation to the recovery velocity of the carrier concentration in the SOA. A scheme of all-optical clock extraction based on injection locked semiconductor laser is proposed and demonstrated. In the scheme, optical carrier and one clock component of return-to-zero(RZ) signal lock two semiconductor lasers to obtain the phase locked optical outputs. When these two components are coupled together, the recovery clock signal is achieved. Two distributed feedback(DFB) lasers are used to extract the clock signal of a 10 Gbit/s RZ signal experimentally.