Paper
30 August 1983 Optimisation Of The Coupling Efficiency Between A Semiconductor Laser And A Monomode Optical Fibre
G. Georgiou
Author Affiliations +
Proceedings Volume 0374, Fibre Optics '83; (1983) https://doi.org/10.1117/12.934563
Event: Sira/Fibre Optics '83, 1983, London, United Kingdom
Abstract
The coupling efficiency between semiconductor lasers and single mode fibres can be greatly increased if a microlens of appropriate focal length is fabricated at the end of the fibre, the reason being that the lens can effectively improve the mode matching of the laser and fibre fields. Using simple techniques we have fabricated hemispherical microlenses at the end of fibres. Coupling efficiencies of about 50% have been achieved. The thoery used to predict the lens parameters for maximum coupling regards the lens as a 'thick lens' and shows that spherical aberration contributes to coupling loss.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. Georgiou "Optimisation Of The Coupling Efficiency Between A Semiconductor Laser And A Monomode Optical Fibre", Proc. SPIE 0374, Fibre Optics '83, (30 August 1983); https://doi.org/10.1117/12.934563
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Cited by 1 scholarly publication.
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KEYWORDS
Monochromatic aberrations

Wavefronts

Microlens

Refractive index

Semiconductor lasers

Spherical lenses

Fabrication

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