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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 11 — Jun. 1, 2012
  • pp: 1844–1846

Matching of the propagation constants in an asymmetric single-mode fused fiber coupler for core pumping thulium-doped fiber at 795 nm

Gabriel Pelegrina-Bonilla, Katharina Hausmann, Kai Liu, Hakan Sayinc, Uwe Morgner, Jörg Neumann, and Dietmar Kracht  »View Author Affiliations


Optics Letters, Vol. 37, Issue 11, pp. 1844-1846 (2012)
http://dx.doi.org/10.1364/OL.37.001844


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Abstract

We developed a fused fiber coupler (FFC) capable of multiplexing wavelengths in the range of 795 nm and 2 μm. A simple 2D simulation model to calculate the pretaper length for matching the propagation constants in the coupling region was established. Based on the numerical data, we fabricated an asymmetric FFC consisting of two different fibers with single-mode guidance for the respective wavelength, achieving a transmission of 90% in the signal fiber for both wavelengths. In order to demonstrate the application, we integrated the FFC into a core pumped thulium-doped fiber amplifier.

© 2012 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(230.2285) Optical devices : Fiber devices and optical amplifiers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 9, 2012
Revised Manuscript: March 14, 2012
Manuscript Accepted: March 14, 2012
Published: May 21, 2012

Citation
Gabriel Pelegrina-Bonilla, Katharina Hausmann, Kai Liu, Hakan Sayinc, Uwe Morgner, Jörg Neumann, and Dietmar Kracht, "Matching of the propagation constants in an asymmetric single-mode fused fiber coupler for core pumping thulium-doped fiber at 795 nm," Opt. Lett. 37, 1844-1846 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-11-1844


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