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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 20, Iss. 8 — Aug. 1, 2002
  • pp: 1545–

Cascaded GI-Fiber Chips With a Wedge-Shaped End for the Coupling Between an SMF and a High-Power LD With Large Astigmatism

Hidehiko Yoda, Taketo Endo, and Kazuo Shiraishi

Journal of Lightwave Technology, Vol. 20, Issue 8, pp. 1545- (2002)


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Abstract

A novel lensed fiber for high-efficiency coupling between an single-mode fiber (SMF) and a high-power laser diode (LD) with large astigmatism of 176 µm is proposed and demonstrated. We experimentally confirmed that the proposed lensed fiber had a minimum coupling loss of 2.5 dB including a reflection loss of 0.3 dB at both ends of the fiber. In addition the new configuration had a long working distance of 67 µm. We also investigated the tolerance characteristics for various displacements.

[IEEE ]

Citation
Hidehiko Yoda, Taketo Endo, and Kazuo Shiraishi, "Cascaded GI-Fiber Chips With a Wedge-Shaped End for the Coupling Between an SMF and a High-Power LD With Large Astigmatism," J. Lightwave Technol. 20, 1545- (2002)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-20-8-1545


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References

  1. V. S. Shah, L. Curtis, R. S. Vodhanel, D. P. Bour and W. C. Young, "Efficient power coupling from a 980-nm, broad-area laser to a single-mode fiber using a wedge-shaped fiber endface", J. Lightwave Technol., vol. 8, pp. 1313-1318, Sept. 1990 .
  2. H. Yoda and K. 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., vol. 19, pp. 1910-1917, Dec. 2001.

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