Abstract

Pumping of highly-nonlinear microstructured fibers with zero-dispersion around the pump wavelength of a 50kW peak-power picosecond Yb-fiber laser allowed extensive polychromatic picosecond operation down to 525nm in all-fibre format. Spectral power densities over 1mW/nm and potential of further pulse compression to femtoseconds is demonstrated.

© 2005 Optical Society of America

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References

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CLEO 2004 (1)

W. J. Wadsworth, N.Y. Joly, F. Biancalana, J. C. Knight, T. A. Birks and P. S. J. Russell, �??Compact supercontinuum generation and four-wave mixing in PCF with 10ns laser pulses,�?? in Proceedings of CLEO (Optical Society of America, Washington DC, 2004), paper CThC3.

Electron. Lett. (1)

K. Tamura, H. A. Haus, E. P. Ippen, �??Self-starting additive pulse mode-locked erbium fibre ring laser,�?? Electron. Lett. 26, 2226-2228 (1992).
[CrossRef]

Opt. Commun. (1)

A. Hideur, T. Chartier, M. Brunel, M. Salhi, C. �?zkul and F. Sanchez, �??Mode-lock, Q-switch and CW operation of an Yb-doped double-clad fiber ring laser,�?? Opt. Commun. 198, 141-146 (2001).
[CrossRef]

Opt. Express (1)

Opt. Lett. (1)

Phys. Rev. Lett. (1)

C.J.S. de Matos, A.B. Rulkov, S.V. Popov, J. Broeng, T.P. Hansen, V.P. Gapontsev and J.R. Taylor, �??All-fiber format compression of frequency chirped pulses in air-guiding photonic crystal fibers,�?? Phys. Rev. Lett. 93, 103901 (2004).
[CrossRef] [PubMed]

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Figures (6)

Fig. 1.
Fig. 1.

Configuration of the all-fiber, ps seed laser source. PC — polarization controller.

Fig. 2.
Fig. 2.

The effect of the pulse bandwidth restriction (a) on pulse duration (b).

Fig. 3.
Fig. 3.

Evolution of the output bandwidth (-10 dB level) and calculated output pulse duration (dispersion of the fiber amplifier of -19 ps/(nm km) assumed) for the ps pulses.

Fig. 4.
Fig. 4.

(a) The spectrum of the 8W average power 3.2ps pulses. (b) Output spectrum after 30m long PCF in low-pump-power regime (6 mW average, 68W peak-power pumping)

Fig. 5.
Fig. 5.

Diagram of the picosecond polychromatic fiber integrated source with up to 1mW/nm spectral power density in 525–1800nm range.

Fig. 6.
Fig. 6.

(a) Output spectrum of different lengths of the PCF at 1.5 W average- (16kW peak-) pump level; inset- autocorrelation trace of the 15ps pulse at 780nm. (b) The loss profile of the 1040 ZDW PCF.

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