Produção Nacional
Revisado por pares
Optical frequency combs generated by four-wave mixing in optical fibers for astrophysical spectrometer calibration and metrology
2008; Optica Publishing Group; Volume: 16; Issue: 17 Linguagem: Inglês
10.1364/oe.16.013267
ISSN1094-4087
Autores Tópico(s)Laser-Matter Interactions and Applications
ResumoOptical frequency combs generated by multiple four-wave mixing of two stabilized single-frequency lasers in optical fibers are proposed for use as high precision frequency markers, calibration of astrophysical spectrometers and metrology. Use of highly nonlinear and photonic crystal fibers with very short lengths and small group velocity dispersion, combined with energy and momentum conservation required by the parametric generation, assures negligible phase mismatch between comb frequencies. In contrast to combs from mode-locked lasers or microcavities, the absence of a resonator allows large tuning of the frequency spacing from tens of gigahertz to beyond teraHertz.
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