High-frequency electric heating circuit for non-magnetic packaging VCSEL laser
The invention provides a high-frequency electric heating circuit for a non-magnetic packaging VCSEL (Vertical Cavity Surface Emitting Laser) laser, which relates to the field of semiconductor laser temperature control and comprises a main control module, a digital-to-analog conversion module, a Wien...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a high-frequency electric heating circuit for a non-magnetic packaging VCSEL (Vertical Cavity Surface Emitting Laser) laser, which relates to the field of semiconductor laser temperature control and comprises a main control module, a digital-to-analog conversion module, a Wien bridge circuit module, a voltage-controlled amplifier module, a power amplifier module and a digital-to-analog conversion module, high-frequency electric signals with variable amplitudes are generated through combination of the Wien bridge circuit and the voltage-controlled amplifier, the working temperature of the VCSEL laser is read through the analog-to-digital conversion circuit, and closed-loop control is achieved through a PID control algorithm after the working temperature is compared with the set temperature through the main control module. The invention meets the requirements of miniaturization and low cost, and meets the use requirements of characteristic working environments.
本发明提供一种用于无磁封装VCSEL激光器高频电加热电 |
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