title: Blue laser via IR resonant doubling with 71% fiber to fiber efficiency.
abstract: We report on high efficiency resonant doubling to 486 nm using periodically poled KTP. The IR laser source is an FBG stabilized semiconductor laser with a maximum polarization maintaining (PM) fiber coupled output of 840 mW. An output power of 680 mW at 486 nm was obtained from our optimized cavity, giving net efficiency of 81%. Also, we report an 87.5% net efficiency in coupling of this blue light from the servo locked cavity into a single-mode PM fiber. This gives a total of 71% fiber to fiber efficiency. Furthermore, a wall plug efficiency of 21.4% was obtained.
authors.affiliation: Department of Physics, University of North Texas, Denton, Texas 76201, USA. Kousdan@gmail.com
authors.forename: Koustubh
authors.initials: K
authors.lastname: Danekar
authors.forename: Ali
authors.initials: A
authors.lastname: Khademian
authors.forename: David
authors.initials: D
authors.lastname: Shiner