title: Parametric oscillator directly pumped by a 1.55-mum erbium-fiber laser.
abstract: We report what is believed to be the first demonstration of an optical parametric oscillator directly pumped by the 1.55-mum output of an erbium-doped fiber laser. The oscillator, based on periodically poled lithium niobate, produced 8-muJ idler output near 3.8 mum at a 500-Hz repetition rate when it was pumped with 100-muJ 60-ns pulses at 1.55 mum . Temperature tuning of the 50-mm-long PPLN crystal gave signal and idler ranges of 2.55 to 2.7 mum and 3.65 to 3.96 mum , respectively, limited by mirror reflectivity. A signal-tuning range of 40 nm was observed for 13.5 nm of pump tuning with a fixed grating period and temperature. The optical parameter oscillator could be operated at low temperature with no sign of photorefractive damage.
authors: P E
authors: PE
authors: Britton
authors: H L
authors: HL
authors: Offerhaus
authors: D J
authors: DJ
authors: Richardson
authors: P G
authors: PG
authors: Smith
authors: G W
authors: GW
authors: Ross
authors: D C
authors: DC
authors: Hanna