Multiple quantum well optically addressed spatial light modulators operating at 1.55 mu m with high diffraction efficiency and high sensitivity

Authors
De Matos, C L'Haridon, H Keromnes, JC Ropars, G Le Corre, A Gravey, P Pugnet, M
Citation
C. De Matos et al., Multiple quantum well optically addressed spatial light modulators operating at 1.55 mu m with high diffraction efficiency and high sensitivity, J OPT A-P A, 1(2), 1999, pp. 286-289
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
ISSN journal
14644258 → ACNP
Volume
1
Issue
2
Year of publication
1999
Pages
286 - 289
Database
ISI
SICI code
1464-4258(199903)1:2<286:MQWOAS>2.0.ZU;2-M
Abstract
New results on GaInAs-GaInAsP multiple quantum well (MQW) spatial light mod ulators are reported. The device structure consists of 50 periods of MQW en closed in an asymmetric Fabry-Perot (FP) micro-cavity 80-98%. An input diff raction efficiency of 2% is measured in a degenerate four-wave-mixing confi guration with a pulse energy of 1 mu J cm(-2) in comparison with only 2 x 1 0(-3)% measured on the reference device where the front reflectivity of the FP is close to zero: embedding an MQW device in a short micro-cavity enhan ces the diffraction efficiency by a factor of 1000.