ausblenden:
Schlagwörter:
Optics;
Zusammenfassung:
In a relatively simple setup consisting of a microchip laser as pump source and two hydrogen-filled hollow-core photonic crystal fibers, a broad, phase-locked, purely rotational frequency comb is generated. This is achieved by producing a clean first Stokes seed pulse in a narrowband guiding photonic bandgap fiber via stimulated Raman scattering and then driving the same Raman transition resonantly with a pump and Stokes fields in a second broad-band guiding kagome-style fiber. Using a spectral interferometric technique based on sum frequency generation, we show that the comb components are phase locked. (C) 2012 Optical Society of America
