Generation of ultraviolet broadband light in a single-mode fiber
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- Bartula, R., Walewski, J. & Sanders, S. Appl. Phys. B (2006) 84: 395. doi:10.1007/s00340-006-2264-4
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Ultraviolet broadband light spanning 337–405 nm was produced in a single-mode optical fiber primarily by stimulated Raman scattering. Pulses of 4 ns duration at 337 nm were coupled into a 50 m long ultraviolet-grade fiber featuring single-mode operation in the 320–450 nm range. Significant spectral broadening was achieved with pulses of only ∼10 W peak power. Our experiments demonstrate the potential for a source with ∼104 times the spectral radiance of a quartz tungsten halogen lamp, which is currently used for many applications in this wavelength range.