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01230 am a22002053u 4500 |
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13937 |
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|a dc
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|a Guilhot, D.A.
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|a Emmerson, G.D.
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|a Gawith, C.B.E.
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|a Watts, S.P.
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|a Shepherd, D.P.
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|a Williams, R.B.
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|a Smith, P.G.R.
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|a Single-mode direct-ultraviolet-written channel waveguide laser in neodymium-doped silica on silicon
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|c 2004-05.
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|z Get fulltext
|u https://eprints.soton.ac.uk/13937/1/13937-01.pdf
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|a 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 10<sup>6</sup>. The propagation loss around 1.05 µm is < 0.8dB/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 <sup>4</sup>F<sub>3/2</sub> <--> <sup>4</sup>I<sub>11/2</sub> transition.
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|a accepted_manuscript
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|a Article
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