1064nm YAG laser 1570nm OPO laser Wadida wareegga 1064nm YAG laser Wadida wareegga 1570nm OPO laser Ku wad wareegga muraayadaha erbium Laysarka muraayadda Erbium Dhalada leysarka Erbium Laysarka fiber-ku-xidhan Qaybaha kala duwan ee Laser rangefinder