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Nanosecond response of bulk-optical Bragg-diffraction modulator based on periodically poled LiNbO3

Nanosecond response of bulk-optical Bragg-diffraction modulator based on periodically poled LiNbO3
Nanosecond response of bulk-optical Bragg-diffraction modulator based on periodically poled LiNbO3
For the first time transients are measured for a bulk-optical Bragg-diffraction modulator based on an electro-optically induced grating in periodically poled LiNbO3 (PPLN). Optical pulse risetimes of 1.2 nsec are reported with a first order diffraction efficiency of 76 % for circular Gaussian beams. The fast risetime is accounted for by a substantially suppressed excitation of acoustic thickness modes and careful electrode design. The device could replace acousto-optical Bragg-deflectors for many applications due to a reduction of the risetime by more than an order of magnitude.
1041-1135
1730-1732
Gnewuch, H.
bb752678-6981-4d39-adc7-db6efde25d33
Pannell, C.N.
002fadf4-f97e-4732-b171-73ed7563ee18
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Gnewuch, H.
bb752678-6981-4d39-adc7-db6efde25d33
Pannell, C.N.
002fadf4-f97e-4732-b171-73ed7563ee18
Ross, G.W.
e881119e-2126-442e-a24d-506dac48a4a4
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Gnewuch, H., Pannell, C.N., Ross, G.W., Geiger, H. and Smith, P.G.R. (1998) Nanosecond response of bulk-optical Bragg-diffraction modulator based on periodically poled LiNbO3. IEEE Photonics Technology Letters, 10 (12), 1730-1732. (doi:10.1109/68.730484).

Record type: Article

Abstract

For the first time transients are measured for a bulk-optical Bragg-diffraction modulator based on an electro-optically induced grating in periodically poled LiNbO3 (PPLN). Optical pulse risetimes of 1.2 nsec are reported with a first order diffraction efficiency of 76 % for circular Gaussian beams. The fast risetime is accounted for by a substantially suppressed excitation of acoustic thickness modes and careful electrode design. The device could replace acousto-optical Bragg-deflectors for many applications due to a reduction of the risetime by more than an order of magnitude.

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Published date: 1998

Identifiers

Local EPrints ID: 77889
URI: https://eprints.soton.ac.uk/id/eprint/77889
ISSN: 1041-1135
PURE UUID: eeb05fa1-2a1a-4bae-95f8-8639593d3d5a

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Date deposited: 11 Mar 2010
Last modified: 17 Jul 2019 00:13

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