CAJ | 학술논문

研制一种具有噪声巡检功能的激光二极管并联群的驱动电源。该驱动电源结构简单，能够快速实现软启动，避免浪涌电流对激光二极管的损坏。采用FPGA和单片机共同控制，减小了单片机单个控制的负担。系统电路包括软启动电路、电压/电流转换电路、并联群连接电路、温度控制电路等。当LD并联群中有任何一个损坏时，即可采用测量噪声的方式来检验和发现，并进行声音和显示器双重报警，确保整个系统连续、稳定。激光二极管并联群的输出通过选择合适的光纤耦合器进行耦合输出。
연제일충구유조성순검공능적격광이겁관병련군적구동전원。해구동전원결구간단，능구쾌속실현연계동，피면랑용전류대격광이겁관적손배。채용FPGA화단편궤공동공제，감소료단편궤단개공제적부담。계통전로포괄연계동전로、전압/전류전환전로、병련군련접전로、온도공제전로등。당LD병련군중유임하일개손배시，즉가채용측량조성적방식래검험화발현，병진행성음화현시기쌍중보경，학보정개계통련속、은정。격광이겁관병련군적수출통과선택합괄적광섬우합기진행우합수출。
A power supply driver of a laser diode in parallel groups which has the function to achieve noisy inspection was developed.This power supply has simple construction,it can achieve soft start quickly,to avoid the damage of surge current on the laser diode. This power supply adopts the combination of FPGA and single-chip microcomputer?for control,reducing the burden of single-chip microcomputer individual control. The system circuit includes a soft start circuit, voltage/current converting circuit,connected circuit of parallelgroups, temperature control circuitand so on.This can be checked and found by using the method of measuring noise, and alarmed by sound and display when there is any LD destroyed in the group of parallel-connected semiconductor laser,which can ensure the continuous and reliablerunning of the whole system.The output of group of parallel-connected semicon ductor lasers will be car?ried out through selecting suitable fiber coupler.