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Understanding bending losses in holey optical fibers

Understanding bending losses in holey optical fibers
Understanding bending losses in holey optical fibers
Extremely large mode area fibers that are single-moded over a broad wavelength range can be created using holey fiber technology. However, as with any fiber, the largest mode areas that are practically feasible are ultimately determined by bending losses. It is therefore essential to gain an understanding of the factors that influence bend loss in these fibers in order to form accurate predictions that can facilitate improved bend loss design. Here, we present the first detailed study of transition loss and pure bend loss in a holey fiber, and consider the impact of the fiber structure. A theoretical model is derived that retains the full refractive index profile of a holey fiber. This approach is used to predict the bend loss in large mode area holey fibers and is validated through comparison with experimental data. For the fibers under study here, we demonstrate that pure bend loss is the dominant component of macro-bend loss and that the hole configuration within the cladding can strongly influence this loss.
0030-4018
317-335
Baggett, J.C.
fbe0bea3-391a-4bf9-bce6-8fc5b2b6da85
Monro, T.M.
4f0295a8-d9ec-45a5-b72b-72908f2549bb
Furusawa, K.
f84c2a9c-89d8-41a1-9d7a-b196fc4ed60c
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Baggett, J.C.
fbe0bea3-391a-4bf9-bce6-8fc5b2b6da85
Monro, T.M.
4f0295a8-d9ec-45a5-b72b-72908f2549bb
Furusawa, K.
f84c2a9c-89d8-41a1-9d7a-b196fc4ed60c
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Baggett, J.C., Monro, T.M., Furusawa, K. and Richardson, D.J. (2003) Understanding bending losses in holey optical fibers. Optics Communications, 227 (4-6), 317-335. (doi:10.1016/j.optcom.2003.09.070).

Record type: Article

Abstract

Extremely large mode area fibers that are single-moded over a broad wavelength range can be created using holey fiber technology. However, as with any fiber, the largest mode areas that are practically feasible are ultimately determined by bending losses. It is therefore essential to gain an understanding of the factors that influence bend loss in these fibers in order to form accurate predictions that can facilitate improved bend loss design. Here, we present the first detailed study of transition loss and pure bend loss in a holey fiber, and consider the impact of the fiber structure. A theoretical model is derived that retains the full refractive index profile of a holey fiber. This approach is used to predict the bend loss in large mode area holey fibers and is validated through comparison with experimental data. For the fibers under study here, we demonstrate that pure bend loss is the dominant component of macro-bend loss and that the hole configuration within the cladding can strongly influence this loss.

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Published date: 2003

Identifiers

Local EPrints ID: 13869
URI: https://eprints.soton.ac.uk/id/eprint/13869
ISSN: 0030-4018
PURE UUID: 9fee0c5d-66cb-4898-ad07-295ef8ce5a52
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 22 Dec 2004
Last modified: 03 Dec 2019 02:05

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