A driving method for a driving system of an ultrashort pulse laser pump source
An ultra-short pulse, driving system technology, applied in lasers, laser parts, semiconductor lasers, etc., can solve the problems of low accuracy and stability of analog power supply, difficult integration, poor flexibility, etc., to achieve high real-time and scalability, Facilitate thermal management, reduce the number of pins and the effect of insufficient computing power
Active Publication Date: 2022-03-08
JILIN UNIV
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Problems solved by technology
The current commercial digital power supply has the disadvantages of large size, poor flexibility, and difficulty in integration, and the analog power supply has the problems of low accuracy and stability.
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Embodiment 1
[0042] A drive system for ultrashort pulse laser pump source and a method thereof, characterized in that the entire system includes: a human machine interactive module 1, a control panel 2, a drive plate 3, an AC-DC power module 4. The control panel 2 is integrated: the master module 5, the communication module 6, the display module 7, the storage module 8, the address setting module 9, the data acquisition module 10, the current setting module 11, the temperature setting module 12, and the matrix keyboard 13. The drive plate 3 is integrated: the current output module 14, the TEC drive module 15. The human machine interactive module 1 is connected to the control panel 2 via the 485 communication interface 16, and the drive plate 3 is connected to the control board 2 by the control interface 17, the AC-DC power module 4 and the human machine interactive module 1, the control panel 2 and the drive The plate 3 is connected. The drive system master module program is based on the embed...
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The invention discloses a driving system and a driving method for an ultrashort pulse laser pump source, belonging to the field of photoelectric technology; the driving system includes: a human-computer interaction module, a control board, a driving board, and an AC-DC power supply module; The drive system hardware design adopts the modular design of host computer, control, drive and power supply to improve the flexibility and integration of the drive system; the drive system program is developed based on the embedded real-time operating system μCOS‑III to improve real-time and scalability , the output correction part adopts the incremental PID algorithm optimized by genetic algorithm to reduce the overshoot of the system and the time to reach dynamic equilibrium; the drive system has complete protection measures, such as input limit detection, soft start and shutdown, drive loop detection, Over-temperature protection and other functions ensure the stable operation of the pump source laser. This technology is applied to femtosecond fiber lasers, which can simultaneously provide high-precision, high-stability, high-flexibility constant temperature control and constant current drive for five pump source lasers.
Description
Technical field [0001] The present invention belongs to the field of photoelectric technology, and more particularly to a driving system for ultra-short pulse laser pump source and a driving method thereof. Background technique [0002] Ultra-short pulse laser has a wide range of long-domain pulse width and wide frequency domain spectrum, and has broad application prospects in fiber communication, photoelectric sensing, nonlinear optical, biomedicine, industrial processing. The semiconductor laser is a main pump source of the solid laser and the fiber laser, and its output stability directly determines the output performance of the whole machine. When used as fiber laser pump source, the semiconductor laser has superior integration, high efficiency, low heat dissipation. However, in addition to being affected by the power supply, the output power of the semiconductor laser is also subject to the external amount of quantum efficiency η D , Threshold current I th And temperature ch...
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IPC IPC(8): H01S5/042H01S3/0941
CPCH01S5/042H01S3/0941
Inventor 秦伟平高德辛吕昶见于旺
Owner JILIN UNIV