[PDF]    http://dx.doi.org/10.3952/lithjphys.50119

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 50, 83–88 (2010)


CONTINUUM GENERATION IN PHOTONIC CRYSTAL FIBRES BY MULTI-WAVELENGTH AMPLIFIED SUB-NANOSECOND LIGHT PULSES
A. Čiburys, R. Gadonas, and D. Jokšas
Department of Quantum Electronics, Vilnius University, Saul˙etekio 9, LT-10222 Vilnius, Lithuania
E-mail: arunas.ciburys@ff.vu.lt

Received 16 October 2009; revised 18 March 2010; accepted 19 March 2010

We report the results of experimental study of a white-light supercontinuum generation in single-mode air-silica microstructured fibres under sub-nanosecond single and dual wavelength pumping. We show that simultaneous excitation of the microstuctured fibre in its normal and anomalous dispersion regimes using the fundamental and second harmonic signals of a passively Q-switched microchip laser results in extension of the spectral range covered by homogeneous supercontinuum to the UV range up to 375 nm.
Keywords: supercontinuum, photonic crystal fibre
PACS: 42.50.Nn, 42.65.-k


KONTINUUMO GENERAVIMAS FOTONINIŲ KRISTALŲ ŠVIESOLAIDŽIUOSE KAUPINANT KELETO BANGOS ILGIŲ SUSTIPRINTAIS SUBNANOSEKUNDINIAIS ŠVIESOS IMPULSAIS
A. Čiburys, R. Gadonas, D. Jokšas
Vilniaus universitetas, Vilnius, Lietuva

Eksperimentiškai tirtas superkontinuumo generavimas vienmodžiuose fotoninių kristalų šviesolaidžiuose kaupinant vieno ir keleto bangos ilgių subnanosekundiniais šviesos impulsais. Kaupinant fotoninių kristalų šviesolaidį anomaliosios ir normaliosios šviesolaidžio dispersijos srityse pasyviai moduliuotos kokybės mikrolazerio pagrindine ir antrąja harmonikomis buvo pasiektas spektrinis superkontinuumo išplitimas į UV sritį iki 365 nm.


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