Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Large, A.C."'
Autor:
Jones, J.K., de Sandro, J.P., Hempstead, M., Shepherd, D.P., Large, A.C., Tropper, A.C., Wilkinson, J.S.
We report laser action in a Ti-diffused LiNbO3 waveguide doped with trivalent Yb ions by thermal indiffusion. Lasing was observed at 1008, 1030, and 1060 nm with thresholds as low as 15-mW launched pump power. We reduced photorefractivity, which init
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::eba7ac7911e70da066c2bd0791b95325
https://eprints.soton.ac.uk/78152/
https://eprints.soton.ac.uk/78152/
Autor:
Shepherd, D.P., Large, A.C., Warburton, T.J., Tropper, A.C., Hanna, D.C., Borel, C., Rameix, A., Thony, Ph., Ferrand, B., Guy, S., Jaquier, B., Joubert, M.F.
We report the growth and efficient, low threshold, diode-pumped, 2µm laser operation of Tm:YAG epitaxial planar waveguides. A room temperature avalanche upconversion process giving intense blue and uv fluorescence is also described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::f15396dcc6df23782bdda053cfce2caa
https://eprints.soton.ac.uk/77177/
https://eprints.soton.ac.uk/77177/
Autor:
Large, A.C., Hanna, D.C., Shepherd, D.P., Tropper, A.C., Warburton, T.J., Borel, C., Ferrand, B., Rameix, A., Thony, P.
Er3+-doped Y3Al5O12 (YAC) is an interesting system with several useful laser transitions. Laser operation has previously been demonstrated on the 1.6µm, 2.94µm, and 561nm shown in the level diagram. Co-doping with Yb3+ allows these transitions to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::a14dad0cb423f372014673ee075e1b7e
https://eprints.soton.ac.uk/77186/
https://eprints.soton.ac.uk/77186/
Autor:
Shepherd, D.P., Hanna, D.C., Jones, J.K., Large, A.C., Tropper, A.C., Chandler, P.J., Townsend, P.D., Zhang, L.
Yb:YAG has manv advantages compared to the widely used Nd:YAG system. These include closer pump and laser wavelengths, leading to a more efficient transfer of energy from the pump to laser photons and less thermal loading of the gain medium. Excited
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::1cb944fc25dba9c1cfa9bf1b96547939
https://eprints.soton.ac.uk/77311/
https://eprints.soton.ac.uk/77311/
Autor:
Shepherd, D.P., Hanna, D.C., Jones, J.K., Large, A.C., Tropper, A.C., Chandler, P.J., Kakarantzas, G., Townsend, P.D., Zhang, L., Chartier, I., Ferrand, B., Pelenc, D.
We report two methods of producing planar technology waveguides for low threshold laser operation. Ion-implantation can make waveguides in many materials with waveguide laser operation so far observed in YAG, GGG, YAP, LiNbO3, BGO and glass, doped wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::665c57c78c8437244f859c6383addb10
https://eprints.soton.ac.uk/77305/
https://eprints.soton.ac.uk/77305/
Autor:
Hanna, D.C., Large, A.C., Shepherd, D.P., Tropper, A.C., Chartier, I., Ferrand, B., Pelenc, D.
We report the 946nm laser operation of an epitaxially grown Nd:YAG planar waveguide. The incident and absorbed power thresholds of 4mW and 1.2mW respectively are lower than those reported for bulk lasers when using a similar experimental set up. We a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::c8b8fd47f2c10020e5b2736241acc13d
https://eprints.soton.ac.uk/77316/
https://eprints.soton.ac.uk/77316/
Autor:
Large, A.C., Hanna, D.C., Jones, J.K., Shepherd, D.P., Tropper, A.C., Chandler, P.J., Townsend, P.D., Zhang, L., Chartier, I., Ferrand, B., Pelenc, D.
The main advantage of using waveguides in laser systems is that they produce high pump intensities over long interaction lengths for low input pump powers. This should lead to lower thresholds and more efficient lasers. Often though extra loss due to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::a7ea35f29d459578e7ec1d6d5f32220e
https://eprints.soton.ac.uk/77308/
https://eprints.soton.ac.uk/77308/
Autor:
Large, A.C., Field, S.J., Hanna, D.C., Shepherd, D.P., Tropper, A.C., Chandler, P.J., Townsend, P.D., Zhang, L.
Ion implantation, which can create waveguides in a wide range of materials, has been used to produce very low threshold channel waveguide lasers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::c9e5b9a982a6a433bf9c296e7366a41f
https://eprints.soton.ac.uk/77392/
https://eprints.soton.ac.uk/77392/
Autor:
Shepherd, D.P., Field, S.J., Hanna, D.C., Large, A.C., Tropper, A.C., Chartier, I., Ferrand, B., Pelenc, D.
The use of optical waveguide geometries to maintain small spot sizes/high intensities over relatively long lengths can lead to high amplifications per unit pump power and low laser thresholds in laser-ion-doped materials. This has been successfully d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______348::74c9288d4e624e4e648f9a8aad40fccd
https://eprints.soton.ac.uk/77384/
https://eprints.soton.ac.uk/77384/
Autor:
Hanna, D.C., Large, A.C., Shepherd, D.P., Tropper, A.C., Chartier, I., Ferrand, B., Pelenc, D.
There has recently been much work on fabricating waveguide lasers based on crystal hosts by methods such as crystal fibre growth1, ion-exchange2, in-diffusion3, ion-implantation4, and epitaxial growth5. Despite the confinement of pump and signal beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ddffad8831e56159ddeaa06fb9bf5f6
https://eprints.soton.ac.uk/77393/
https://eprints.soton.ac.uk/77393/