Phys. Rev. Lett. 95, 213903 (2005) [4 pages]Stokes Amplification Regimes in Quasi-cw Pumped Hydrogen-Filled Hollow-Core Photonic Crystal FiberReceived 27 June 2005; published 15 November 2005 Pure rotational stimulated Raman scattering spectra containing nine strong spectral components were generated from a ∼11 m long hollow-core photonic crystal fiber filled with hydrogen and pumped with nanosecond pulses having energies around 100–300 nJ. Observation of both transient and steady-state scattering threshold behavior is reported. Passage from the transient to the steady state is observed with a pulse as long as 14 ns. Convenient analytical expressions for energy and power threshold are deduced for the present configuration. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.213903
DOI:
10.1103/PhysRevLett.95.213903
PACS:
42.65.Dr, 42.65.Ky, 42.55.Ye, 33.20.Sn
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