Zobrazeno 1 - 7
of 7
pro vyhledávání: '"J. C. H. Birbeck"'
Autor:
S.B. Jones, B.H. Smith, S.V. Dewar, J.M. Heaton, G.M. Berry, D.R. Wight, J. C. H. Birbeck, K.P. Hilton, Michelle M. Bourke, G.W. Smith
Publikováno v:
Journal of Lightwave Technology. 17:267-281
This paper presents a detailed experimental and theoretical study of the properties of deep-etched GaAs-AlGaAs optical waveguides designed using a version of the spectral index method which predicts mode losses due to leakage through the lower claddi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::634ad4b04543ad04d4c0c04cb27f9cef
https://doi.org/10.1109/50.744237
https://doi.org/10.1109/50.744237
Publikováno v:
IEEE Journal of Quantum Electronics. 28:678-685
An optical switch is demonstrated which uses a phased array of 30 closely spaced, individually addressed electrooptic AlGaAs-GaAs waveguides to focus and steer a light beam under electronic control in a planar output waveguide. A small and potentiall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34093e54914c405e412629a794948f81
https://doi.org/10.1109/3.124993
https://doi.org/10.1109/3.124993
Autor:
G.W. Smith, J.M. Heaton, J. T. Parker, Richard Michael Jenkins, D.R. Wight, J. C. H. Birbeck, K.P. Hilton
Publikováno v:
Applied Physics Letters. 64:684-686
We report the demonstration of novel multiway GaAs/AlGaAs electro‐optic waveguide switches which incorporate self‐imaging planar multimode waveguide splitters and recombiners interconnected by single‐mode guides. Each device consists of one or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::095c6f9968f631fb13aef8435dd6e36e
https://doi.org/10.1063/1.111033
https://doi.org/10.1063/1.111033
Autor:
Richard Michael Jenkins, D.R. Wight, J. C. H. Birbeck, J. T. Parker, J.M. Heaton, K.P. Hilton
Publikováno v:
Applied Physics Letters. 61:1754-1756
We report the demonstration of novel GaAs/AlGaAs integrated optical 1‐to‐N way beam splitters which use symmetric mode mixing in center‐fed multimode planar waveguides. Each device has one single‐mode input guide, a carefully chosen length of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7523826d168f10a22c78d7419d3bb3e
https://doi.org/10.1063/1.108495
https://doi.org/10.1063/1.108495
Publikováno v:
Applied Physics Letters. 59:899-901
A novel type of optical beam scanning device based on the same principle as a phased array radar has been made and demonstrated. This phased array optical scanning device consisted of a uniformly illuminated array of ten closely spaced, single mode G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf299b6e53c90b844080f97d6f177087
https://doi.org/10.1063/1.105270
https://doi.org/10.1063/1.105270
Publikováno v:
Journal of Physics D: Applied Physics. 6:1622-1639
The results of a programme of research on green-emitting epitaxial diodes are reported. Diode quantum efficiencies of 0?07% DC and 0?40% pulsed have been obtained from an optimized structure. Room-temperature cathodoluminescence measurements on the b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edbcd531172162c31a51db4cb94d4e57
https://doi.org/10.1088/0022-3727/6/13/310
https://doi.org/10.1088/0022-3727/6/13/310
Publikováno v:
9th European Microwave Conference, 1979.
This paper describes the development of an efficient, compact amplifier with a gain of 20 dB and an output of 2 W in J Band. An overall efficiency of greater than 10% was achieved using GaAs Read IMPATT diodes with Schottky barrier contacts in a thre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25307ad61bb4b4272b16cf2877d226ff
https://doi.org/10.1109/euma.1979.332771
https://doi.org/10.1109/euma.1979.332771