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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 6 — Jun. 1, 2013
  • pp: 813–820

Cladding YAG crystal fibers with high-index glasses for reducing the number of guided modes

Kuang-Yu Hsu, Mu-Han Yang, Dong-Yo Jheng, Chien-Chih Lai, Sheng-Lung Huang, Karl Mennemann, and Volker Dietrich  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 6, pp. 813-820 (2013)

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Yttrium aluminium garnet (YAG) crystal fibers with a core diameter of 40 μm were cladded by high index glasses using the co-drawing laser-heated pedestal growth method. Due to the extremely large cooling rates in the fabrication processes, unexpected and phenomenally large index drops of 0.018 and at least 0.02 were found from the as-grown capillary and the YAG crystal fiber cladding compared with bulk N-SF57’s, respectively. The high-index glass cladding is effective in reducing the number of guided modes, and the intensity profiles of the crystal fiber show there are only four guided modes at 532 nm.

© 2013 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(140.3510) Lasers and laser optics : Lasers, fiber
(160.2750) Materials : Glass and other amorphous materials
(230.2285) Optical devices : Fiber devices and optical amplifiers

ToC Category:
Laser Materials

Original Manuscript: April 5, 2013
Revised Manuscript: April 30, 2013
Manuscript Accepted: May 10, 2013
Published: May 15, 2013

Kuang-Yu Hsu, Mu-Han Yang, Dong-Yo Jheng, Chien-Chih Lai, Sheng-Lung Huang, Karl Mennemann, and Volker Dietrich, "Cladding YAG crystal fibers with high-index glasses for reducing the number of guided modes," Opt. Mater. Express 3, 813-820 (2013)

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