Düsseldorf 2007 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 19: Erzeugung ultrakurzer Lichtimpulse

Q 19.3: Talk

Tuesday, March 20, 2007, 11:00–11:15, 5K

Amplification of Shaped Supercontinuum from a Photonic Crystal Fiber — •Jens Möhring, Tiago Buckup, Bernhard von Vacano, and Marcus Motzkus — Physikalische Chemie, Philipps Universität Marburg, D-35032 Marburg, Germany

Ultrafast spectroscopy applications require the generation of intense and broadband ultrashort pulses. To achieve the respective optical bandwidth, supercontinuum (SC) can be generated in photonic crystal fibers (PCF) with great flexibility. When pumped by an amplified femtosecond laser system, a PCF generated supercontinuum can be used for seeding in parametric amplification. In this work, we present the amplification of a phase modulated supercontinuum from a PCF in a single stage noncollinear parametric amplifier (nc-OPA). A pulse shaper is used for complete phase management of the SC pulse before the amplifier stage. This approach allows the generation of intense Fourier-limited pulses after the amplification stage, without the need of any additional compressor behind the parametric amplifier. Besides that, complex phase modulation of the amplified pulse can also be easily obtained by phase control of the SC seed pulse. We show compression, complex phase modulation and amplification of a 14 fs supercontinuum pulse at 700 nm.