NDLI: Single-Mode regime of large mode area double cladding photonic crystal fibers

Content Provider	IEEE Xplore Digital Library
Author	Coscelli, E. Poli, F. Passaro, D. Cucinotta, A. Selleri, S. Alkeskjold, T.T. Leick, L. Broeng, J.
Copyright Year	2011
Description	Author affiliation: Information Engineering Department, University of Parma, Viale G.P. Usberti 181/A, 1-43124, Italy (Coscelli, E.; Poli, F.; Passaro, D.; Cucinotta, A.; Selleri, S.) \|\| NKTPhotonics A/S, Blokken 84, DK-3460 Birkerød, Denmark (Alkeskjold, T.T.; Leick, L.; Broeng, J.)
Abstract	Yb-doped Double Cladding Photonic Crystal Fibers (DC-PCFs) with low numerical aperture have been successfully exploited to realize high-power lasers and amplifiers. Recently, in order to obtain the high effective area values required to avoid detrimental nonlinear effects, PCFs with core obtained by removing 19 cells from the cladding lattice have been proposed. A critical issue dealing with fibers with such large core is the possibility to obtain single-mode guiding, which is a mandatory requirement for most high-power applications. So far, a thorough analysis of the single-mode regime of this kind of fibers has not been presented. The cut-off properties of PCFs with 1-cell or 7-cell core have been studied extensively in literature, for example in [1], by considering the effective index of the Fundamental Space-filling Mode (FSM) as the refractive index of the fiber cladding. As a consequence, cut-off condition has been set where the effective index of the guided mode equals the one of the FSM. It has been shown that the hypothesis of an infinite cladding, which is assumed in this approach, no longer holds when 19-cell core DC PCFs are considered [2].
Starting Page	1
Ending Page	1
File Size	263199
Page Count	1
File Format	PDF
ISBN	9781457705335
e-ISBN	9781457705328
DOI	10.1109/CLEOE.2011.5943198
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonics
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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