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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 22, Iss. 10 — May. 15, 1997
  • pp: 694–696

Efficient single-frequency fiber lasers with novel photosensitive Er/Yb optical fibers

L. Dong, W. H. Loh, J. E. Caplen, J. D. Minelly, K. Hsu, and L. Reekie  »View Author Affiliations


Optics Letters, Vol. 22, Issue 10, pp. 694-696 (1997)
http://dx.doi.org/10.1364/OL.22.000694


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Abstract

Boron- and germanium-doped highly photosensitive cladding is used in a novel design to achieve photosensitive Er/Yb-doped fibers, permitting short, strong gratings (length ∼1 cm, reflectivity >99%) to be written without hydrogenation. The high absorption at 980 nm in Er/Yb fibers permits efficient pump absorption over a short device length, which is ideal for achieving highly efficient single-frequency fiber lasers. Both single-frequency Bragg-grating reflector and distributed-feedback lasers with slope efficiencies of 25% with respect to launched pump power have been realized in such fibers.

© 1997 Optical Society of America

Citation
L. Dong, W. H. Loh, J. E. Caplen, J. D. Minelly, K. Hsu, and L. Reekie, "Efficient single-frequency fiber lasers with novel photosensitive Er/Yb optical fibers," Opt. Lett. 22, 694-696 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-10-694

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