1064nm YAG laser 1570nm OPO laser Shayela umjikelezo we-1064nm YAG laser Shayela umjikelezo we-1570nm OPO laser Shayela umjikelezo we-erbium glass lasers I-Erbium ingilazi laser Ingilazi ye-Erbium laser I-laser ehlanganiswe ne-fiber Amamojula we-Laser rangefinder
