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Efficient frequency doubling of 1.5µm femtosecond laser pulses in quasi-phase-matched optical fibres

Efficient frequency doubling of 1.5µm femtosecond laser pulses in quasi-phase-matched optical fibres
Efficient frequency doubling of 1.5µm femtosecond laser pulses in quasi-phase-matched optical fibres
Second-order nonlinear gratings in optical fibres have been produced for efficient quasi-phase-matched frequency conversion around 1.5µm. Periodic poling was achieved by defining a patterned electrode on a D-shape fibre via standard lithography and applying high voltage (4-5 kV) at elevated temperature (270-280°C). This fabrication technique has allowed to produce gratings uniform over 7.5cm, as indicated by the shape and the bandwidth of the phase-matching curve. By frequency doubling ~100 fs pulses in a grating ~4cm long and with a period of 57.15µm, ~1.05mW average power at 768nm has been generated, with an average conversion efficiency ~1.2%.
0003-6951
1007-1009
Pruneri, V.
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Bonfrate, G.
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Kazansky, P.G.
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Simonneau, C.
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Vidakovic, P.
367cb026-8ed5-4da3-837a-7395c3289d22
Levenson, J.A.
58c0c872-6e9c-4c69-b956-91fe11efd2a9
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
Bonfrate, G.
8bc08494-13f7-48f8-b630-f283d6ffd6d5
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Simonneau, C.
d40536c7-225b-4cb0-822f-ce5a950931b8
Vidakovic, P.
367cb026-8ed5-4da3-837a-7395c3289d22
Levenson, J.A.
58c0c872-6e9c-4c69-b956-91fe11efd2a9

Pruneri, V., Bonfrate, G., Kazansky, P.G., Simonneau, C., Vidakovic, P. and Levenson, J.A. (1998) Efficient frequency doubling of 1.5µm femtosecond laser pulses in quasi-phase-matched optical fibres. Applied Physics Letters, 72 (9), 1007-1009. (doi:10.1063/1.120948).

Record type: Article

Abstract

Second-order nonlinear gratings in optical fibres have been produced for efficient quasi-phase-matched frequency conversion around 1.5µm. Periodic poling was achieved by defining a patterned electrode on a D-shape fibre via standard lithography and applying high voltage (4-5 kV) at elevated temperature (270-280°C). This fabrication technique has allowed to produce gratings uniform over 7.5cm, as indicated by the shape and the bandwidth of the phase-matching curve. By frequency doubling ~100 fs pulses in a grating ~4cm long and with a period of 57.15µm, ~1.05mW average power at 768nm has been generated, with an average conversion efficiency ~1.2%.

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Published date: 1998

Identifiers

Local EPrints ID: 77924
URI: http://eprints.soton.ac.uk/id/eprint/77924
ISSN: 0003-6951
PURE UUID: 0dea0bd0-d591-4be7-9112-1f1081c533f3

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:02

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Contributors

Author: V. Pruneri
Author: G. Bonfrate
Author: P.G. Kazansky
Author: C. Simonneau
Author: P. Vidakovic
Author: J.A. Levenson

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