Abstract

We demonstrate the use of photonic-crystal fiber for dispersion compensation in a soliton fiber laser. The anomalous dispersion provided by the photonic-crystal fiber enables us to construct a femtosecond fiber laser at 1 μm wavelength without prisms or diffraction gratings. The laser produces ~100-fs pulses with 1 nJ energy, and is a major step toward environmentally-stable all-fiber devices at 1 μm.

© 2002 Optical Society of America

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References

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Electron. Lett. (4)

I. N. Duling, III, �??Subpicosecond all-fiber erbium laser,�?? Electron. Lett. 27, 544-545 (1991).
[CrossRef]

K. Furusawa, T.M. Monro, P. Petropoulos, and D.J. Richardson, �??Modelocked laser based on ytterbium doped holey fibre,�?? Electron. Lett. 37, 560-561 (2001).
[CrossRef]

S. M. J. Kelly, �??Characteristic sideband instability of periodically amplified average soliton,�?? Electron. Lett. 28, 806-807 (1992).
[CrossRef]

W. J. Wadsworth, J. C. Knight, W. H. Reeves, P. S. J. Russell, and J. Arriaga, �??Y b3+-doped photonic crystal fibre laser,�?? Electron. Lett. 36, 1452-1453 (2000).
[CrossRef]

IEEE J. Quantum Electron. (1)

H. A. Haus, J. G. Fujimoto, and E. P. Ippen, �??Analytic theory of additive pulse and Kerr lens mode locking,�?? IEEE J. Quantum Electron. 28, 2086-2096 (1992).
[CrossRef]

Opt. Lett. (8)

Other (1)

H. Lim, F. O. Ilday, and F. W. Wise, �??Generation of 2-nJ pulses from a femtosecond Yb fiber laser,�?? accepted for publication in Opt. Lett.

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Figures (4)

Fig. 1.
Fig. 1.

Schematic of the laser. QWP: quarter-wave plate; HWP: half-wave plate; PBS: polarizing beam splitter; PC: polarization controller.

Fig. 2.
Fig. 2.

Pulse train.

Fig. 3.
Fig. 3.

Autocorrelation of the pulses from the Yb fiber laser, recorded over the indicated ranges of delay. (c) Measured interferometric autocorrelation (black) and envelopes calculated from the measured power spectrum (red).

Fig. 4.
Fig. 4.

Spectrum on (a) linear and (b) logarithmic scales. Spectral sidebands are marked with arrows. The cw lasing spectrum of the laser (red line in (b)) is also shown for comparison.

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