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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 9 — May. 1, 2004
  • pp: 947–949

Single-mode direct-ultraviolet-written channel waveguide laser in neodymium-doped silica on silicon

D. A. Guilhot, G. D. Emmerson, C. B. E. Gawith, S. P. Watts, D. P. Shepherd, R. B. Williams, and P. G. R. Smith  »View Author Affiliations


Optics Letters, Vol. 29, Issue 9, pp. 947-949 (2004)
http://dx.doi.org/10.1364/OL.29.000947


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Abstract

A waveguide laser with a neodymium-doped silica core is fabricated on a silicon substrate by a combination of flame hydrolysis deposition, solution doping, and direct UV writing. The neodymium-ion concentration is estimated to be ~8000 parts in 106 . The propagation loss around 1.05 μm is <0.8 dB/cm . Lasing in the range 1048¿1056 nm and 1356±1 nm is observed. A slope efficiency of 33% for a high-reflectivity output coupler and a threshold of 4 mW of absorbed power for a 25% output coupler are measured for the 4F3/24I11/2 transition.

© 2004 Optical Society of America

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(160.6030) Materials : Silica
(230.7390) Optical devices : Waveguides, planar

Citation
D. A. Guilhot, G. D. Emmerson, C. B. E. Gawith, S. P. Watts, D. P. Shepherd, R. B. Williams, and P. G. R. Smith, "Single-mode direct-ultraviolet-written channel waveguide laser in neodymium-doped silica on silicon," Opt. Lett. 29, 947-949 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-9-947

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