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High power femtosecond Bessel-X pulses directly from a compact fiber laser system
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10.1063/1.4758687
/content/aip/journal/apl/101/15/10.1063/1.4758687
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/15/10.1063/1.4758687
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) The schematic of our prototype model. Characterizations of the fabricated IMAX on one fiber-tip: SEMs of (b) the modified fiber end and (c) the magnified image of the IMAX for the dashed area in (b), and (d) the profile of the IMAX measured by a Veeco NT9300 interferometer.

Image of FIG. 2.
FIG. 2.

(a) Experimental setup of the compact high power fiber amplifier generating ultrashort Bessel-X pulses: OSC, mode-locked fiber oscillator; LMA PCF, large mode area photonic crystal fiber; AL, aspherical lens; DM, dichroic mirror; LD, laser diode; HWP, half waveplate; PBS, polarization beam splitter; GP, grating pairs; ISO, optical isolator; SF-10, 10 nm interference spectral filter; IMAX-AL: inverse micro-axicon and collimating lens. The (b) simulated and (c) measured contour plots of the nondiffracting propagating behavior of the Bessel-X pulses.

Image of FIG. 3.
FIG. 3.

Propagating property of the high power Bessel-X pulses: the measured (blue dotted lines) and the simulated (red solid lines) distributions of (a) the peak intensity and (b) the FWHM of the central lobe; (c) the process of the self-healing intensity patterns at four different distances (indicated in the bottom) behind the blocker, and the unblocked pattern is also given in the leftmost for comparison.

Image of FIG. 4.
FIG. 4.

(a) The autocorrelation traces and (b) corresponding spectra of the seeding (blue solid lines) and the amplified (red dotted lines) chirped pulses, inset of (b) shows the spectra in the logarithm scale; (c) the dechirped pulse- (black solid lines) and the phase-profile (blue dotted lines) retrieved from the correlation traces and the corresponding spectrum by PICASO algorithm; (d) the autocorrelation traces of the 18.7 W amplified wavepackets of the dechirped (black solid lines), the PICASO-retrieved trace (red dashed lines), and the Fourier transform limited (TL) trace calculated from the measured spectra (blue circles).

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/content/aip/journal/apl/101/15/10.1063/1.4758687
2012-10-09
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High power femtosecond Bessel-X pulses directly from a compact fiber laser system
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/15/10.1063/1.4758687
10.1063/1.4758687
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