Optics Letters · 2004 · 22 citations · 10 references
Natural SciencesMaterials EngineeringMaterials ScienceOptical MaterialsOpticsPhotonicsLaser Host MaterialsLaser OpticsLaser PhysicsOptical WaveguidesRare-earth-doped MaterialsSilicon PhotonicsAbsorbed PowerPropagation LossPropagation Path LossSiliconSilicon Optical PropertiesSilicon WaveguidesWaveguide LasersWaveguide Materials
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 approximately 8000 parts in 10(5). The propagation loss around 1.05 microns 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 4F3/2-->4I11/2 transition.
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Neodymium-doped silica optical waveguide laser on silicon substrate
Y. Hibino, T. Kitagawa, Makoto Shimizu et al. · IEEE Photonics Technology Letters · 1989 · 62 citations