title: Efficient high-power generation of visible and mid-infrared light by degenerate four-wave-mixing in a large-mode-area photonic-crystal fiber.
abstract: An efficient and simple approach for converting pulsed near-IR laser radiation into visible and mid-IR light by exploiting degenerate four-wave-mixing in an endlessly single-mode, large-mode-area photonic-crystal fiber is presented. Coupling a 1 MHz, 200 ps, 8 W average power pulsed source emitting at 1064 nm into this fiber results in average powers of 3 W at 673 nm signal wavelength and of 450 mW at 2539 nm idler wavelength, respectively. The excellent pulse energy conversion efficiencies of 35% for the signal and 6% for the idler wavelength are due to the unique combination of characteristics of this type of fiber.
authors.affiliation: Institute of Applied Physics, Friedrich-Schiller-University Jena, Albert-Einstein-Strasse 15, 07745 Jena, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Nodop
authors.forename: C
authors.initials: C
authors.lastname: Jauregui
authors.forename: D
authors.initials: D
authors.lastname: Schimpf
authors.forename: J
authors.initials: J
authors.lastname: Limpert
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann