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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 18,
  • Issue 6,
  • pp. 787-
  • (2000)

A New Lensed-Fiber Configuration Employing Cascaded GI-Fiber Chips

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Abstract

A new scheme is proposed for lensed fibers having high coupling efficiency between laser diodes and single-mode fibers with a long working distance. The new lensed fiber consists of a pair of GI-fiber tips having different focusing parameters. The measured net coupling loss between a laser diode operating at a wavelength of 1.3 m and a single-mode fiber is as low as 1.5 dB. The working distances are around 50 m, much longer than those of conventional lensed fibers.

[IEEE ]

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