Optical dispersion delay controllable system

• Main Authors: ZHOU YONG, FANG WENTAN, CHEN XIAOLIN, WANG YANGYANG, MA XIAOHUI, ZHANG WEI, GAO WEIQING
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention discloses a design of an optical dispersion delay controllable system, the specific device structure comprises an optical coupler, a photoelectric detector (PD), a control chip, a pair of optical fiber reflectors, two optical switches and an optical fiber delay line, a laser pulse enters the coupler and is divided into operation light and trigger light, the operation light enters a delay optical fiber, and the trigger light enters the delay optical fiber; the trigger light enters the photoelectric detector (PD) to generate an electric signal to trigger the control chip, the control chip applies a control signal to the first optical switch, so that the operating light circularly operates between the optical fiber reflectors, and finally, the control chip applies a signal to the second optical switch to control the output of the operating light so as to realize a delay effect. According to the invention, accurate control of the delay of the laser pulse in the optical fiber can be realized, and the