The Multi- Functional Automatic Optical Power Control Driver Circuit Design for LASER Diode

• Main Authors: Kun-Shuan Huang, 黃崑軒
• Other Authors: Tai-Ping Sun
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/28658555498639907160

碩士 === 國立暨南國際大學 === 光電科技碩士學位學程在職專班 === 101 === Title of Thesis：The Multi- Functional Automatic Optical Power Control Driver Circuit Design for LASER Diode Name of Institute：Graduate Program of Optoelectronic Technology, College of Science and Technology, National Chi Nan University Pages：64 Graduation Time：Jan/2013 Degree Conferred：Master Student Name：Kun-Shuan Huang Advisor Name：Dr. Tai-Ping Sun Abstract In this thesis, the design of PWM (Pulse Width Modulation) circuit to drive the LASER diode (ADL-65102TL Arima) and comparison of changes in optical power drive mode to do a variety of PWM circuit. LASER diode lit easily affected by temperature, changing the output optical power, temperature rise LASER diode characteristics of the forward bias decreases as temperature detection function, re-use pulse width modulation compensation LASER diode with temperature rise the decline of the light power, reach auto optical power purposes. Analyzing the effect of two polar bodies in different temperature change four kinds of PWM drive mode: ACC (Automatic Constant Current Control Mode), AEC (Automatic Electrical Power Control Mode), APC (Automatic Photo Power Control without Photo Diode Mode) and APC with PD (Automatic Photo Power Control with Photo Diode Mode) mode the optical power changes. Automatic power control system has been confirmed through the experiments to maintain the stability of the optical power in ambient temperature of 0℃ ~ 55℃. APC with PD architecture, the APC without PD architecture performance followed, but for only a simple the ACC & AEC drive circuit to compare obvious improvement. Key words：PWM;APC;LASER diode