title: Efficient, all-solid-state, Raman laser in the yellow, orange and red.
abstract: We report efficient operation of a KGd(WO(4))(2) Raman laser pumped by a small, 1 W, 532 nm laser module. By changing the output coupler and Raman crystal orientation, more than 8 wavelengths in the yellow-to-red spectral region were generated including 555 nm, 559 nm, 579 nm, 589 nm, 606 nm, 622 nm, 636 nm and 658 nm, ie., the first 4 Stokes orders on the two orthogonal high-gain Raman shifts of KGd(WO(4))(2). We have also demonstrated spectrally pure output (typically >90% pure) for selected Stokes order with output power up to 400 mW. High slope efficiency (up to 68%) and high beam quality (M(2)~1.5) of Stokes output are obtained even at the highest pump power.
authors.forename: R
authors.initials: R
authors.lastname: Mildren
authors.forename: M
authors.initials: M
authors.lastname: Convery
authors.forename: H
authors.initials: H
authors.lastname: Pask
authors.forename: J
authors.initials: J
authors.lastname: Piper
authors.forename: T
authors.initials: T
authors.lastname: McKay