Analysis of the Design and Testing Methods of High-Speed Data Transmission Optical Link

Dealing with the bit-error problem of high-speed optical links in electronic reconnaissance system, this paper investigates a typical application architecture which composed of FPGA, optical module and optical links. The comprehensive testing method of this optical link is discussed, which is composed of bit error ratio test, and eye diagram test. According to the testing results, the impact of input electrical signal of the transmitting optical module, the jitter and signal-to-noise of optical signal on the bit error ratio is confirmed. Finally, through extended tests to adjust the parameters of Gigabit Transceiver at the transmitting end and decrease the output jitter of transmitting optical module, the bit error ratio of the optical transmission link can be reduced effectively.