Title :
High-efficiency Bragg cells in gallium phosphide
Author :
Bagshaw, J.M. ; Lowe, S.E. ; Willats, T.F.
Author_Institution :
Marconi Research Centre, GEC Research Limited, Chelmsford, UK
Abstract :
The design, fabrication and evaluation of efficient wideband Bragg cells in gallium phosphide is reported. The devices were fabricated using the <110> and <111> longitudinal modes of acoustic propagation with design bandwidths of 500 MHz centred on 1.2 GHz. State-of-the-art efficiencies of up to 115%/W and 220%/W, respectively, were obtained.
Keywords :
III-V semiconductors; acousto-optical devices; gallium compounds; GaP; bandwidth 500 MHz; centre frequency 1.2 GHz; design; efficiencies; evaluation; fabrication; longitudinal modes of acoustic propagation; semiconductors; wideband Bragg cells;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860403
