Optical delay device

Abstract

The invention relates to a regulation and control device of an optical time delay unit, comprising a diode laser (1), an optical fiber (2), an electro-optical switch (3), a photoelectric converter (4) and a regulation and control circuit, wherein the output ends of an optical power control circuit (10) and an automatic temperature control circuit (20) are respectively connected with the input end of the diode laser (1); the output end of a +400 volt supply circuit (40) is respectively connected with the input ends of the electro-optical switch (3) and a high-voltage pulse drive circuit (30), the other input end of the high-voltage pulse drive circuit (30) inputs a transistor-transistor logic (TTL) signal, and the output end of the high-voltage pulse drive circuit (30) is connected with the other input end of the electro-optical switch (3) through a control circuit (50) of the electro-optical switch (3); the output end of the diode laser (1) is connected with the input end of the electro-optical switch (3) through the optical fiber (2), and the output end of the electro-optical switch (3) is connected with the input end of the photoelectric converter (4) through the optical fiber (2).

Description

technical field [0001] The invention relates to an optical delay device and belongs to the technical field of optical fiber communication equipment manufacturing. Background technique [0002] With the development and maturity of optical fiber communication technology, optical delay technology is also gradually developed. Optical delay devices have broad application prospects in both optical fiber communication and microwave technology. The core components of the device are electrically adjustable semiconductor lasers, electro-optic switches and photoelectric converters. Whether these devices can work normally directly affects the performance of their devices. Therefore, optical delay devices with high reliability, strong adaptability, low power consumption, and small volume have become a realistic need. [0003] At present, the control circuit of the optical delay device generally uses discrete components and simple arithmetic amplifiers as the main control circuit struct...

AI Technical Summary

Problems solved by technology

[0003] At present, the control circuit of the optical delay device generally uses discrete components and simple arithmetic amplifiers as the main control circuit structure. Although the circuit has optical power and temperature control functions, the control sensitivity and compensation range are limited, and the power supply system requires complex Shortcomings such as multiple sets of power input cannot meet the requirements of high performance and small size

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