Abstract

A distributed feedback laser is fabricated in Er3+-doped photonic crystal fibre. Preferential single-mode lasing is obtained with no special consideration of polarisation issues. The results demonstrate practical implementation of a multi-photon writing process for complex structures in these optical fibres. No hydrogen loading and no germanium are involved.

© 2005 Optical Society of America

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References

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Electron. Lett. (2)

J. Canning, E. Buckley, K. Lyytikainen, �??All-Fibre Phase-Aperture Zone Plate Fresnel Lenses,�?? Electron. Lett., 39, 311-312 (2003)
[CrossRef]

J. Canning, M. G. Sceats, "�?-phase-shifted periodic distributed structures in germanosilicate fibre by uv post-processing," Electron. Lett. 30, 1344-1345 (1994)
[CrossRef]

J. Chem. Phys. (1)

A. Wootten, B. Thomas, P. Harrowell, �??Radiation-induced densification in amorphous silica: A computer simulation study,�?? J. Chem. Phys., 115, 3336-3341 (2001)
[CrossRef]

Opt. & Las. In Eng. (1)

J. Canning, �??Fibre lasers and related technologies,�?? Accepted to Opt. & Las. In Eng. (2005)

Opt. Commun. (1)

J. Canning, �??Diffraction-Free Mode Generation and Propagation in Optical Waveguides,�?? Opt. Commun. 207, 35-39 (2002)
[CrossRef]

Opt. Express (1)

Opt. Lett. (4)

Phys. Rev. (1)

W. Primak, E. Edwards, �??Radiation induced dilations in vitreous silica,�?? Phys. Rev. 128, 2580�??2588 (1962)
[CrossRef]

Phys. Rev. B (1)

C. Fiori and R. A. B. Devine, �??Evidence of a wide continuum of polymorphs in α-SiO2,�?? Phys. Rev. B 33, 2972�??2974 (1986)

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Figures (6)

Fig. 1.
Fig. 1.

Transmission profile of the phase shifted structure inscribed within an Er3+ doped photonic crystal fibre.

Fig. 2.
Fig. 2.

Schematic of laser cavity and pumping scheme

Fig. 3.
Fig. 3.

Total emitted power from DFB-PCF laser. Inset: OSA spectrum of laser.

Fig. 4.
Fig. 4.

(Left) x and y intensity cross-sections of laser mode profile with Gaussian fits and (Right) SEM image with near field profile of laser output. The SEM image does not line up with the orientation of the cross-sections.

Fig. 5.
Fig. 5.

FPI spectra. FSR=1.5GHz and f=100. Arrows depict where onset of second lasing mode can occur.

Fig. 6.
Fig. 6.

Relative intensity noise (RIN) measurement for the DFB-PCF laser.

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