1results about How to "Reduce optical loss" patented technology

The application discloses a tunable optoelectronic oscillator based on a DML-SOA laser chip and belongs to the technical field of semiconductor processes. The tunable optoelectronic oscillator comprises a self-feedback laser, the self-feedback laser encapsulates a DML-SOA laser and an optical isolator in a butterfly tube shell, and is sequentially connected with an optical time delay line and an optoelectronic detector through an optical path, the optoelectronic detector is connected with an electrical amplifier through an electric circuit, the electrical amplifier is connected with an electrical coupler through an electric circuit, one of the electrical coupler is connected with a Bias-T through an electric circuit, the other of the electrical coupler is used as a microwave signal output, and a direct-current power supply is connected with the Bias-T and the self-feedback laser simultaneously. The tunable optoelectronic oscillator has the characteristics of compact structure, high signal-to-noise ratio and low phase noise, can realize a P-1 oscillation phenomenon with adjustable frequency interval through simple electrical injection tuning, and has a wide application prospect in the field of optoelectronic integration and microwave signal generation.