Further comments on t.i.r. deflector/modulator performance
- 10 January 1974
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 10 (1) , 4-6
- https://doi.org/10.1049/el:19740003
Abstract
T.I.R. modulator/deflector far-field order intensities are shown to agree with prediction for LiNbO3xy-cut devices, and a ‘blazing’ effect, controlled by crystal orientation, is suggested. Zero-order extinction ratios were between 40:1 and 140:1, and seemed optical-finish limited. Misalignment of a 0.1 mm pitch interdigitated electrode device by ±5° halved the device sensitivity, indicating the possibility of use with uncollimated light. White-light (incoherent) operation and optimisation prospects are reported.Keywords
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