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Proceedings Paper

Optical properties of a nonlinear p-phenylenevinylene oligomer side chain polymer in films and fiber preforms
Author(s): Anna Samoc; Barry Luther-Davies; Marek Samoc; Man Shing Wong; R. Maryla Krolikowska; Therese M. Martin; Craig J. MacLeod; Anke C. Freydank; Gang-Ding Peng; Trevor Whitbread
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Paper Abstract

Linear and nonlinear optical properties of a new soluble polymer bearing distyrylbenzene chromophore, the alkoxy-sulphono-substituted p-phenylenevinylene oligomer (MTPV-ORSO) attached as a side-chain to the methyl methacrylate backbone are reported. This chromophore was developed for introduction into single-mode nonlinear optical polymer fibres. The molecular second-order and third-order nonlinearities were estimated with quantum chemical calculations (MOPAC). The side-chain polymer shows an optical absorption maximum at 326 nm. The polymer was incorporated into the core of the fibre preform with a procedure which led to a step index profile, as measured with a preform profiler, suitable for a single-mode optical fibre. Second harmonic of the fundamental 1200 nm wave was measured in the corona poled polymer films giving the second-order susceptibility d33 = 0.8 pm/V for the polymer containing about 1.3 wt% of the side-chain chromophore and 0.1 pm/V in a guest-host system containing 0.24 wt% of the chromophore in the fibre preform. The coherence length of the side-chain polymer, equal to 28 μm at 1200 nm, was evaluated from the dispersion of the linear refractive indices. Degenerate four-wave mixing (DFWM) with amplified femtosecond pulses was also applied to measure the nonlinear refractive index of the co-polymer at 800 nm.

Paper Details

Date Published: 18 December 2002
PDF: 11 pages
Proc. SPIE 4798, Linear and Nonlinear Optics of Organic Materials II, (18 December 2002);
Show Author Affiliations
Anna Samoc, Australian National Univ. (Australia)
Barry Luther-Davies, Australian National Univ. (Australia)
Marek Samoc, Australian National Univ. (Australia)
Man Shing Wong, Australian National Univ. and Hong Kong Baptist Univ. (China)
R. Maryla Krolikowska, Australian National Univ. (Australia)
Therese M. Martin, Australian National Univ. (Australia)
Craig J. MacLeod, Australian National Univ. (Australia)
Anke C. Freydank, Australian National Univ. (Australia)
Gang-Ding Peng, Univ. of New South Wales (Australia)
Trevor Whitbread, Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 4798:
Linear and Nonlinear Optics of Organic Materials II
Manfred Eich; Mark G. Kuzyk, Editor(s)

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