Low-cost environmentally proven high-brightness fiber-coupled laser diode

A low cost and highly reliable fiber coupled laser diode is demonstrated with up to 1.0 W output power in 0.14 NA out of a 60 micrometer core fiber. Package reliability with extended operation at 600 mW is shown for over 600 hours at 85 degrees Celsius, and with stringent environmental tests, including thermal cycling, high temperature storage, and two sec. on two sec. off power cycling.