Estimating modal instability threshold for photonic crystal rod fiber amplifiers

Mette Marie Johansen; Kristian Rymann Hansen; Marko Laurila; Thomas Tanggaard Alkeskjold; Jesper Lægsgaard

doi:10.1364/OE.21.015409

Estimating modal instability threshold for photonic crystal rod fiber amplifiers

Mette Marie Johansen, Kristian Rymann Hansen, Marko Laurila, Thomas Tanggaard Alkeskjold, Jesper Lægsgaard

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Abstract

We present a semi-analytic numerical model to estimate the transverse modal instability (TMI) threshold for photonic crystal rod amplifiers. The model includes thermally induced waveguide perturbations in the fiber cross section modeled with finite element simulations, and the relative intensity noise (RIN) of the seed laser, which seeds mode coupling between the fundamental and higher order mode. The TMI threshold is predicted to ~370 W – 440 W depending on RIN for the distributed modal filtering rod fiber.

Original language	English
Journal	Optics Express
Volume	21
Issue number	13
Pages (from-to)	15409-15417
ISSN	1094-4087
DOIs	https://doi.org/10.1364/OE.21.015409
Publication status	Published - 1 Jul 2013

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-21-13-15409. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Keywords

Fiber design and fabrication
Fiber optics amplifiers and oscillators
Thermal effects
Microstructured fibers

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10.1364/OE.21.015409

Oe 21 13 15409Final published version, 2.45 MB

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title = "Estimating modal instability threshold for photonic crystal rod fiber amplifiers",

abstract = "We present a semi-analytic numerical model to estimate the transverse modal instability (TMI) threshold for photonic crystal rod amplifiers. The model includes thermally induced waveguide perturbations in the fiber cross section modeled with finite element simulations, and the relative intensity noise (RIN) of the seed laser, which seeds mode coupling between the fundamental and higher order mode. The TMI threshold is predicted to ~370 W – 440 W depending on RIN for the distributed modal filtering rod fiber.",

keywords = "Fiber design and fabrication, Fiber optics amplifiers and oscillators, Thermal effects, Microstructured fibers",

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note = "This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-21-13-15409. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.",

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AU - Johansen, Mette Marie

AU - Hansen, Kristian Rymann

AU - Laurila, Marko

AU - Alkeskjold, Thomas Tanggaard

AU - Lægsgaard, Jesper

N1 - This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-21-13-15409. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

PY - 2013/7/1

Y1 - 2013/7/1

N2 - We present a semi-analytic numerical model to estimate the transverse modal instability (TMI) threshold for photonic crystal rod amplifiers. The model includes thermally induced waveguide perturbations in the fiber cross section modeled with finite element simulations, and the relative intensity noise (RIN) of the seed laser, which seeds mode coupling between the fundamental and higher order mode. The TMI threshold is predicted to ~370 W – 440 W depending on RIN for the distributed modal filtering rod fiber.

AB - We present a semi-analytic numerical model to estimate the transverse modal instability (TMI) threshold for photonic crystal rod amplifiers. The model includes thermally induced waveguide perturbations in the fiber cross section modeled with finite element simulations, and the relative intensity noise (RIN) of the seed laser, which seeds mode coupling between the fundamental and higher order mode. The TMI threshold is predicted to ~370 W – 440 W depending on RIN for the distributed modal filtering rod fiber.

KW - Fiber design and fabrication

KW - Fiber optics amplifiers and oscillators

KW - Thermal effects

KW - Microstructured fibers

U2 - 10.1364/OE.21.015409

DO - 10.1364/OE.21.015409

M3 - Journal article

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JO - Optics Express

JF - Optics Express

IS - 13

ER -

Estimating modal instability threshold for photonic crystal rod fiber amplifiers

Abstract

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