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Applied Optics

Applied Optics


  • Vol. 20, Iss. 18 — Sep. 15, 1981
  • pp: 3136–3145

Lens coupling in fiber-optic devices: efficiency limits

A. Nicia  »View Author Affiliations

Applied Optics, Vol. 20, Issue 18, pp. 3136-3145 (1981)

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GRIN-rod lenses, ball lenses, and plano-convex rod lenses are currently proposed for fiber-optic devices. From analyses of the aberrations of these lens types it turned out that equivalent lenses in a well-designed coupling have nearly the same aberration. We derive valuable relations between the coupling efficiency and the optimal lens parameters. For each above-mentioned lens type, coupling efficiencies of 95% (0.2-dB insertion loss) can be obtained if typical communication fibers are incorporated. We also present a lens connector that has been fabricated in a factory-type production line. Its performance reaches the theoretical limits. Finally the influence of misalignments in the lens coupling system is investigated.

© 1981 Optical Society of America

Original Manuscript: December 3, 1980
Published: September 15, 1981

A. Nicia, "Lens coupling in fiber-optic devices: efficiency limits," Appl. Opt. 20, 3136-3145 (1981)

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