title: Continuous wave Nd:YAG channel waveguide laser produced by focused proton beam writing.
abstract: We report on mirrorless continuous wave laser oscillation at 1064 nm from a 808 nm pumped Nd:YAG optical channel waveguide fabricated by 1 MeV focused proton beam writing. Pump power threshold has been found to be 94 mW with a laser slope efficiency of 40%. A maximum output power at 1064 nm for the waveguide laser is 63 mW at absorbed pump power of 247 mW.
authors.affiliation: School of Physics, Shandong University, Jinan 250100, China.
authors.forename: Yicun
authors.initials: Y
authors.lastname: Yao
authors.forename: Yang
authors.initials: Y
authors.lastname: Tan
authors.forename: Ningning
authors.initials: N
authors.lastname: Dong
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.forename: Andrew A
authors.initials: AA
authors.lastname: Bettiol