List of Division publications with links

2012-10-22 15:06 - Generation of a phase-locked Raman frequency comb in gas-filled hollow-core photonic crystal fiber

A. Abdolvand, A. M. Walser, M. Ziemienczuk, T. Nguyen, and P. St.J. Russell, Optics Letters, Vol. 37, Issue 21, pp. 4362-4364 (2012)

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 broadband guiding kagomé-style fiber. Using a spectral interferometric technique based on sum frequency generation, we show that the comb components are phase locked.