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RGB generation by four-wave mixing in small-core holey fibers

Horak, P., Dupriez, P., Poletti, F., Petrovich, M.N., Jeong, Y., Nilsson, J., Richardson, D.J. and Payne, D.N. (2007) RGB generation by four-wave mixing in small-core holey fibers At SPIE Optics + Photonics 2007. 26 - 30 Aug 2007. 8 pp. (doi:10.1117/12.738483).

Record type: Conference or Workshop Item (Paper)


We report the generation of white light comprising red, green, and blue spectral bands from a frequency-doubled fiber laser by an efficient four-wave mixing process in submicron-sized cores of microstructured holey fibers. A master-oscillator power amplifier (MOPA) source based on Yb-doped fiber is employed to generate 80 ps pulses at 1060 nm wavelength with 32 MHz repetition rate, which are then frequency-doubled in an LBO crystal to generate up to 2 W average power of green light. The green pump is then carefully launched into secondary cores of the cladding of photonic bandgap fibers. These secondary cores with diameters of about 400 to 800 nm act as highly nonlinear waveguides. At the output, we observe strong red and blue sidebands which, together with the remaining green pump light, form a visible white light source of about 360 mW. The generating process is identified as four-wave mixing where phase matching is achieved by birefringence in the secondary cores which arises from non-symmetric deformation during the fiber fabrication. Numerical models of the fiber structure and of the nonlinear processes confirm our interpretation. Finally, we discuss power scaling and limitations of the white light source due to the damage threshold of silica fibers.

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Published date: 2007
Venue - Dates: SPIE Optics + Photonics 2007, 2007-08-26 - 2007-08-30
Keywords: nonlinear fiber optics, RGB generation, microstructured fibers


Local EPrints ID: 49815
PURE UUID: d8c7c45a-cadf-47fd-b2e9-513ac5d3890a
ORCID for P. Horak: ORCID iD
ORCID for F. Poletti: ORCID iD
ORCID for J. Nilsson: ORCID iD

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Date deposited: 05 Dec 2007
Last modified: 17 Jul 2017 14:55

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Author: P. Horak ORCID iD
Author: P. Dupriez
Author: F. Poletti ORCID iD
Author: M.N. Petrovich
Author: Y. Jeong
Author: J. Nilsson ORCID iD
Author: D.J. Richardson
Author: D.N. Payne

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