Nonlinearity Effects In Crystal Cored Fibres

Kenneth I White; Bimal K Nayar

doi:10.1117/12.943533

2 June 1988 Nonlinearity Effects In Crystal Cored Fibres

Kenneth I White, Bimal K Nayar

Proceedings Volume 0864, Advanced Optoelectronic Technology; (1988) https://doi.org/10.1117/12.943533
Event: 1987 Symposium on the Technologies for Optoelectronics, 1987, Cannes, France

Abstract

Optical fibre waveguides with organic single crystal cores are receiving increasing attention for 'all-optical' devices such as amplifiers and wavelength shifters. This paper overviews the fabrication, design, optical assessment and both the predicted and currently realised performance of devices including second harmonic generators and, to a lesser extent, degenerate optical parametric amplifiers. Using guided wave interactions, existing materials have sufficient nonlinearity to show that efficient second harmonc generation (>50%) and high amplification gain (>35dB) are possible with devices a few cm in length when pumped by semiconductor diode lasers of just a few mW output power. Second harmonic generation can also be emitted in the radiation modes of the fibre waveguide. In this case, theory predicts a 1 mW output from a 10 mW pump laser in a 16 mm long device. Fabrication tolerances are much less severe than in the guided mode case, as phase matching is more easily achieved. Transparency in the clad glass may allow operation in the deep blue even for absorbing organic cores.

Citation Download Citation

Kenneth I White and Bimal K Nayar "Nonlinearity Effects In Crystal Cored Fibres", Proc. SPIE 0864, Advanced Optoelectronic Technology, (2 June 1988); https://doi.org/10.1117/12.943533

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