title: Narrowband and tunable ring optical parametric oscillator with a volume Bragg grating.
abstract: We demonstrate a tunable nanosecond optical parametric oscillator with a narrowed signal spectrum. This was done by use of a volume Bragg grating based retroreflector, which makes the tuning simple and yields a compact design. Using periodically poled KTiOPO4 as the nonlinear medium, we generated 0.42 mJ of signal energy at 760 nm with a tuning range of 5 nm(2.6 THz) and a bandwidth of 0.25 nm(130 GHz) when the oscillator was pumped at 532 nm with 1.3 mJ of energy.
authors.affiliation: Laser Physics, KTH-Royal Institute of Technology, 10691 Stockholm, Sweden. bj@laserphysics.kth.se
authors.forename: Björn
authors.initials: B
authors.lastname: Jacobsson
authors.forename: Carlota
authors.initials: C
authors.lastname: Canalias
authors.forename: Valdas
authors.initials: V
authors.lastname: Pasiskevicius
authors.forename: Fredrik
authors.initials: F
authors.lastname: Laurell