Analysis of single-modality of thermally diffused areas of telecommunication optical fiber core

Marek Ratuszek; Jacek Majewski; Zbigniew Zakrzewski; Małgorzata Ratuszek

doi:10.1117/12.739605

9 April 2007 Analysis of single-modality of thermally diffused areas of telecommunication optical fiber core

Marek Ratuszek, Jacek Majewski, Zbigniew Zakrzewski, Małgorzata Ratuszek

Proceedings Volume 6608, Lightguides and Their Applications III; 660819 (2007) https://doi.org/10.1117/12.739605
Event: Lightguides and Their Applications III, 2006, Krasnobród, Poland

Abstract

Thermally diffused areas of telecommunication single mode fiber core reduce loss of fiber-to-fiber or laser-tofiber couplings indeed. Loss of such area is small if it remains single-modal. In the work, for step, Gaussian and power refractive index profiles, for which fundamental mode LP01 distribution can be approximated by Gaussian function, the so-called equal volume profiles were given. For these profile forms, it has been shown that the fibers remain single-modal independently of changing values of core radius e.g. after diffusion. It has been shown that because Gaussian profile approximates well diffusion distribution, this thermally diffused core area, which has constant quantity of dopant in the diffusion area, remains single-modal.

Citation Download Citation

Marek Ratuszek, Jacek Majewski, Zbigniew Zakrzewski, and Małgorzata Ratuszek "Analysis of single-modality of thermally diffused areas of telecommunication optical fiber core", Proc. SPIE 6608, Lightguides and Their Applications III, 660819 (9 April 2007); https://doi.org/10.1117/12.739605

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