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Second harmonic generation in an optical fibre by self written χ(2) grating

Second harmonic generation in an optical fibre by self written χ(2) grating
Second harmonic generation in an optical fibre by self written χ(2) grating
Measurements of the effective length and wavelength selectivity of a second order susceptibility grating written into a fibre are reported. A weak non-phase matched second harmonic signal at 532nm is generated by the allowed quadrupole polarisation. This signal initiates the self-writing of an axially periodic pattern of defect centres in the fibre which lead to the growth of a χ(2) grating. Phase-matching is achieved automatically because the enhanced χ(2) is written periodically into the fibre at spatial locations where the second harmonic signal is the highest and is in phase with the pump. One particular χ(2) grating extends over 12cm of fibre and has a bandwidth of 0.24nm.
Farries, M.C.
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Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Fermann, M.E.
7b069725-c906-4b27-9b6d-1034b99b0cf7
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Farries, M.C.
2a86f02d-d271-410f-b065-e417c7df5c8f
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Fermann, M.E.
7b069725-c906-4b27-9b6d-1034b99b0cf7
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d

Farries, M.C., Russell, P.St.J., Fermann, M.E. and Payne, D.N. (1987) Second harmonic generation in an optical fibre by self written χ(2) grating. IEE Colloquium Optical Fibre Measurements, London, United Kingdom.

Record type: Conference or Workshop Item (Paper)

Abstract

Measurements of the effective length and wavelength selectivity of a second order susceptibility grating written into a fibre are reported. A weak non-phase matched second harmonic signal at 532nm is generated by the allowed quadrupole polarisation. This signal initiates the self-writing of an axially periodic pattern of defect centres in the fibre which lead to the growth of a χ(2) grating. Phase-matching is achieved automatically because the enhanced χ(2) is written periodically into the fibre at spatial locations where the second harmonic signal is the highest and is in phase with the pump. One particular χ(2) grating extends over 12cm of fibre and has a bandwidth of 0.24nm.

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More information

Published date: 1 May 1987
Additional Information: Digest No. 1987/55 paper 14
Venue - Dates: IEE Colloquium Optical Fibre Measurements, London, United Kingdom, 1987-05-01

Identifiers

Local EPrints ID: 77625
URI: http://eprints.soton.ac.uk/id/eprint/77625
PURE UUID: 93a45db6-c4b8-4296-b499-298b38b79a21

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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:56

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Contributors

Author: M.C. Farries
Author: P.St.J. Russell
Author: M.E. Fermann
Author: D.N. Payne

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