PM Manual Variable Optical Attenuator:the PM Manual Variable Optical Attenuator is designed and manufactured to reduce the output optical power, get the power suitable. It is with low insertion loss, high extinction ration, high return loss and low Adjustment Precision,The PM Attenuator is widely apllied at fiber laser ,fier CWDM/DWDM/OADM communication system.尊龙凯时人生就是搏רҵÑб¬·¢²úPM VOA,¹¤Òµ¼¶PM VOA,ÊÇÒ»¸öרҵµÄPM VOA³§¼Ò,ÓкܺõÄPM VOA¼ÛÇ®¡£尊龙凯时人生就是搏רҵÑб¬·¢²úµÄPM VOAÆÕ±éÓ¦ÓÃÓÚº½Ìì¡¢º½¿Õ¡¢µçÁ¦¡¢Ìú·¡¢Ò½ÁÆ¡¢½»Í¨¡¢Í¨Ñ¶¡¢µÈ¸÷´óÁìÓò¡£