A Laser which may contain vastly different power levels depending upon the desired application; are smaller, more efficient and have a lower total cost than other types of lasers. For Fiber test equipment, high-power pulse lasers typically Range from 60mW to 150mW; for direct modulation fiber communication lasers, high power is 1mW to 5mW; for high-power CW lasers with external modulator, high power is 20mW to 30mW.