High-efficiency Raman conversion in SF6- And CF4-filled hollow-core photonic bandgap fibers

Shahar Edelstein, Amiel A. Ishaaya

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We present a comparative experimental investigation of vibrational stimulated Raman scattering in hollow-core photonic bandgap fibers pressurized with sulfur hexafluoride (SF6) and tetrafluoromethane (CF4) gases. Nanosecond-duration pulses at a wavelength of 1030 nm are coupled into the gas-filled fiber, and the first and second Stokes orders are measured at the fiber output. We characterize the conversion process as a function of gas, fiber length, and input power. With a 15 m fiber filled with SF6, we obtain conversion efficiency to the first Stokes of 55.7% at an input peak power of 0.63 kW. In comparison, with CF4, we obtained a higher conversion threshold and maximum conversion efficiency of 45.4%. To the best of our knowledge, this is the first reported conversion experiment with hollow-core fibers filled with SF6 gas.

Original languageEnglish
Pages (from-to)5856-5859
Number of pages4
JournalOptics Letters
Issue number23
StatePublished - 1 Dec 2019

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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