Low-NA single-mode LMA photonic crystal fiber amplifier

Thomas Tanggaard Alkeskjold; Marko Laurila; Lara Scolari; Jes Broeng; Marko Laurila

doi:10.1117/12.874545

Low-NA single-mode LMA photonic crystal fiber amplifier

Thomas Tanggaard Alkeskjold
, Marko Laurila
, Lara Scolari
, Jes Broeng
, Marko Laurila

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

Enabling Single-Mode (SM) operation in Large-Mode-Area (LMA) fiber amplifiers and lasers is critical, since a SM output ensures high beam quality and excellent pointing stability. In this paper, we demonstrate and test a new design approach for achieving ultra-low NA SM rod fibers by using a spatially Distributed Mode Filter (DMF). This approach achieves SM performance in a short and straight rod fiber and allows preform tolerances to be compensated during draw. A low-NA SM rod fiber amplifier having a mode field diameter of ~60μm at 1064nm and a pump absorption of 27dB/m at 976nm is demonstrated.

Original language	English
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7914
Pages (from-to)	79141S
ISSN	0277-786X
DOIs	https://doi.org/10.1117/12.874545
Publication status	Published - 2011
Event	Fiber Lasers 8: Technology, Systems, and Applications - San Francisco, CA, United States Duration: 24 Jan 2011 → 27 Jan 2011 Conference number: 8

Conference

Conference	Fiber Lasers 8
Number	8
Country/Territory	United States
City	San Francisco, CA
Period	24/01/2011 → 27/01/2011

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title = "Low-NA single-mode LMA photonic crystal fiber amplifier",

abstract = "Enabling Single-Mode (SM) operation in Large-Mode-Area (LMA) fiber amplifiers and lasers is critical, since a SM output ensures high beam quality and excellent pointing stability. In this paper, we demonstrate and test a new design approach for achieving ultra-low NA SM rod fibers by using a spatially Distributed Mode Filter (DMF). This approach achieves SM performance in a short and straight rod fiber and allows preform tolerances to be compensated during draw. A low-NA SM rod fiber amplifier having a mode field diameter of \textasciitilde{}60μm at 1064nm and a pump absorption of 27dB/m at 976nm is demonstrated.",

author = "Alkeskjold, \{Thomas Tanggaard\} and Marko Laurila and Lara Scolari and Jes Broeng and Marko Laurila",

year = "2011",

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volume = "7914",

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journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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T1 - Low-NA single-mode LMA photonic crystal fiber amplifier

AU - Alkeskjold, Thomas Tanggaard

AU - Laurila, Marko

AU - Scolari, Lara

AU - Broeng, Jes

AU - Laurila, Marko

N1 - Conference code: 8

PY - 2011

Y1 - 2011

N2 - Enabling Single-Mode (SM) operation in Large-Mode-Area (LMA) fiber amplifiers and lasers is critical, since a SM output ensures high beam quality and excellent pointing stability. In this paper, we demonstrate and test a new design approach for achieving ultra-low NA SM rod fibers by using a spatially Distributed Mode Filter (DMF). This approach achieves SM performance in a short and straight rod fiber and allows preform tolerances to be compensated during draw. A low-NA SM rod fiber amplifier having a mode field diameter of ~60μm at 1064nm and a pump absorption of 27dB/m at 976nm is demonstrated.

AB - Enabling Single-Mode (SM) operation in Large-Mode-Area (LMA) fiber amplifiers and lasers is critical, since a SM output ensures high beam quality and excellent pointing stability. In this paper, we demonstrate and test a new design approach for achieving ultra-low NA SM rod fibers by using a spatially Distributed Mode Filter (DMF). This approach achieves SM performance in a short and straight rod fiber and allows preform tolerances to be compensated during draw. A low-NA SM rod fiber amplifier having a mode field diameter of ~60μm at 1064nm and a pump absorption of 27dB/m at 976nm is demonstrated.

U2 - 10.1117/12.874545

DO - 10.1117/12.874545

M3 - Conference article

SN - 0277-786X

VL - 7914

SP - 79141S

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Fiber Lasers 8

Y2 - 24 January 2011 through 27 January 2011

ER -

Low-NA single-mode LMA photonic crystal fiber amplifier

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