Gnewuch, H. and Pannell, C.N. and Ross, G.W. and Smith, P.G.R. and Geiger, H. (1998) Nanosecond response of Bragg deflectors in periodically poled LiNbO3. Ieee Photonics Technology Letters, 10 (12). pp. 1730-1732. ISSN 1041-1135.
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For the first time, transients are measured for a bulk-optical Bragg-deflector based on an electrooptically (EO) induced grating in periodically poled LiNbO3 (PPLN). Optical pulse risetimes of 1.2 ns are reported with a first-order diffraction efficiency of 76% for circular Gaussian beams, The fast risetime is accounted for by a substantially suppressed elicitation of acoustic thickness modes and careful electrode design. For many applications, the device could replace both acoustooptical Bragg-deflectors and conventional EO amplitude modulators due to a fivefold reduction in risetime and fourfold reduction in drive power, respectively.
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences|
|Depositing User:||R.F. Xu|
|Date Deposited:||17 Apr 2009 15:55|
|Last Modified:||17 Apr 2009 15:55|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/17771 (The current URI for this page, for reference purposes)|
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