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Broadband diode-pumped fibre laser

Broadband diode-pumped fibre laser

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We report the observation of a strong dependence of the emission spectrum (centre wavelength and linewidth) of Nd : silica fibre lasers on pump wavelength. In a particular fibre, careful selection of the pump wavelength has led to the operation of a broadband fibre laser at 1060 nm with 19 nm FWHM bandwidth. When pumped with a 30 mW diode laser, it exhibits a 1 mW threshold, a 2.5 mW output, and an intrinsic average wavelength temperature stability of about 10 ppm/°C.

References

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      • K. Bohm , P. Marten , K. Petermann , E. Weidel , R. Ulrich . Low-drift fibre gyro using a superluminescent diode. Electron. Lett. , 352 - 353
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      • Wang, C.S., Chen, J.S., Fu, R., Sunderam, V.S., Varma, R., Zarrabi, J., Lin, C., Hwang, C.J.: `High power long life superluminescent diode', Proc. SPIE ‘Fibre Gyros: 10th Anniversary Conference’, 1986, 719, p. 203–207.
    3. 3)
      • Liu, K., Digonnet, M., Fesler, K., Kim, B.Y., Shaw, H.J.: `Superfluorescent single mode Nd: fiber source at 1060 nm', Proceedings of the OFS meeting, January 1988, New Orleans.
    4. 4)
      • C. Brecher , L.A. Riseberg , M.J. Weber . Line-narrowed spectra and site-dependent transition probabilities of Nd3+ in oxide and fluoride glasses. Phys. Rev. B , 5799 - 5811
    5. 5)
      • M. Zürn , J. Voigt , E. Brinkmeyer , R. Ulrich , S.B. Poole . Line narrowing and spectral hole burning in single-mode Nd3+ fiber lasers. Opt. Lett. , 316 - 318
    6. 6)
      • Po, H., Hakimi, F., Mansfield, R.J., McCollum, B.C., Tumminelli, R.P., Snitzer, E.: `Neodymium fiber laser at 0.905, 1.06 and 1.4 μm', Proceedings of OSA Meeting, October 1986, Seattle.

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