Optical properties of a nonlinear p-phenylenevinylene oligomer side chain polymer in films and fiber preforms

Anna Samoc*, Barry Luther-Davies, Marek Samoc, Ricky M S WONG, R. Maryla Krolikowska, Therese M. Martin, Craig J. MacLeod, Anke C. Freydank, Gang Ding Peng, Trevor Whitbread

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

Linear and nonlinear optical properties of a new soluble polymer bearing distyrylbenzene chromophore, the alkoxysulphono-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 nm at 1200 μm, 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.

Original languageEnglish
Pages (from-to)87-97
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4798
DOIs
Publication statusPublished - 2002
EventLinear and Nonlinear Optics of Organic Materials II - Seattle, WA, United States
Duration: 9 Jul 200211 Jul 2002

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Coherence length
  • Forward degenerate four-wave mixing
  • NLO side-chain polymer
  • Optical fibre
  • PMMA
  • Poled films
  • Second harmonic generation

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