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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 19, Iss. 12 — Dec. 1, 2001
  • pp: 1910–

A New Scheme of a Lensed Fiber Employing a Wedge-Shaped Graded-Index Fiber Tip for the Coupling Between High-Power Laser Diodes and Single-Mode Fibers

Hidehiko Yoda and Kazuo Shiraishi

Journal of Lightwave Technology, Vol. 19, Issue 12, pp. 1910- (2001)


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Abstract

A novel lensed fiber employing a wedge-shaped graded-index fiber (GIF) is proposed. The characteristic of coupling loss as a function of the aspect ratio is numerically investigated. When the aspect ratio is seven,the coupling loss of a wedge-shaped GIF and a conventional wedge-shaped SMF are 0.22 dB and 0.60 dB, respectively, and when the aspect ratio is 13, they are 0.5 dB and 2.4 dB. The tolerance to laser diode (LD)-fiber displacement is also numerically investigated, and it is confirmed that the proposed fiber has larger tolerance than a conventional wedge-shaped single-mode fiber (SMF). The performance of the new lensed fiber is also experimentally verified.

[IEEE ]

Citation
Hidehiko Yoda and Kazuo Shiraishi, "A New Scheme of a Lensed Fiber Employing a Wedge-Shaped Graded-Index Fiber Tip for the Coupling Between High-Power Laser Diodes and Single-Mode Fibers," J. Lightwave Technol. 19, 1910- (2001)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-19-12-1910

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