85 μm core rod fiber amplifier delivering 350 W/m

Mette Marie Johansen; Mattia Michieletto; Torben Kristensen; Thomas Tanggaard Alkeskjold; Jesper Lægsgaard

doi:10.1117/12.2213274

85 μm core rod fiber amplifier delivering 350 W/m

Mette Marie Johansen, Mattia Michieletto, Torben Kristensen, Thomas Tanggaard Alkeskjold, Jesper Lægsgaard

NKT Group

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

An improved version of the distributed modal filtering (DMF) rod fiber is tested in a high power setup delivering 350 W/m of extracted signal average power limited by the available pump power. The rod fiber is thoroughly tested to record the transverse modal instability (TMI) behavior and also measure degradation of the TMI threshold with operation time due to induced absorption in the active material increasing the thermo-optical heat load. Multiple testing degrades the rod fiber and TMI threshold from >360 W to a satuarated power level of roughly 240 W.

Original language	English
Title of host publication	Proceedings of SPIE
Number of pages	6
Volume	9728
Publisher	SPIE - International Society for Optical Engineering
Publication date	2016
Article number	97280I
DOIs	https://doi.org/10.1117/12.2213274
Publication status	Published - 2016
Event	SPIE Photonics West LASE 2016 - The Moscone Center, San Francisco, United States Duration: 13 Feb 2016 → 18 Feb 2016 https://www.spiedigitallibrary.org/conference-proceedings-of-SPIE/9740.toc#FrontMatterVolume9740

Conference

Conference	SPIE Photonics West LASE 2016
Location	The Moscone Center
Country/Territory	United States
City	San Francisco
Period	13/02/2016 → 18/02/2016
Internet address	https://www.spiedigitallibrary.org/conference-proceedings-of-SPIE/9740.toc#FrontMatterVolume9740

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

Keywords

Fibre lasers and amplifiers
Design of specific laser systems
Optical fibre testing and measurement of fibre parameters
Spectral and other filters
Other fibre optical devices and techniques
Optical coatings and filters
Fibre optics
laser stability
optical fibre amplifiers
optical fibre filters
optical fibre testing
optical pumping
thermo-optical effects
distributed modal filtering rod fiber
rod fiber amplifier
pump power
transverse modal instability threshold
absorption
size 85 mum
satuarated power thermo-optical
thermo-optical heat load
active material
Applied Mathematics
Computer Science Applications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Fiber
Fiber optics amplifiers and oscillators
Lasers
Thermal effects
Fiber lasers
Fibers
Laser applications
Active material
Induced absorption
Modal filtering
Modal instabilities
Multiple testing
Signal average
Thermo-optical
Fiber amplifiers

Access to Document

10.1117/12.2213274

97280IFinal published version, 559 KB

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Cite this

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title = "85 μm core rod fiber amplifier delivering 350 W/m",

abstract = "An improved version of the distributed modal filtering (DMF) rod fiber is tested in a high power setup delivering 350 W/m of extracted signal average power limited by the available pump power. The rod fiber is thoroughly tested to record the transverse modal instability (TMI) behavior and also measure degradation of the TMI threshold with operation time due to induced absorption in the active material increasing the thermo-optical heat load. Multiple testing degrades the rod fiber and TMI threshold from >360 W to a satuarated power level of roughly 240 W.",

keywords = "Fibre lasers and amplifiers, Design of specific laser systems, Optical fibre testing and measurement of fibre parameters, Spectral and other filters, Other fibre optical devices and techniques, Optical coatings and filters, Fibre optics, laser stability, optical fibre amplifiers, optical fibre filters, optical fibre testing, optical pumping, thermo-optical effects, distributed modal filtering rod fiber, rod fiber amplifier, pump power, transverse modal instability threshold, absorption, size 85 mum, satuarated power thermo-optical, thermo-optical heat load, active material, Applied Mathematics, Computer Science Applications, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Fiber, Fiber optics amplifiers and oscillators, Lasers, Thermal effects, Fiber lasers, Fibers, Laser applications, Active material, Induced absorption, Modal filtering, Modal instabilities, Multiple testing, Signal average, Thermo-optical, Fiber amplifiers",

author = "Johansen, \{Mette Marie\} and Mattia Michieletto and Torben Kristensen and Alkeskjold, \{Thomas Tanggaard\} and Jesper L{\ae}gsgaard",

year = "2016",

doi = "10.1117/12.2213274",

language = "English",

volume = "9728",

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

publisher = "SPIE - International Society for Optical Engineering",

booktitle = "Proceedings of SPIE",

note = "SPIE Photonics West LASE 2016 ; Conference date: 13-02-2016 Through 18-02-2016",

url = "https://www.spiedigitallibrary.org/conference-proceedings-of-SPIE/9740.toc\#FrontMatterVolume9740",

}

Johansen, MM, Michieletto, M, Kristensen, T, Alkeskjold, TT & Lægsgaard, J 2016, 85 μm core rod fiber amplifier delivering 350 W/m. in Proceedings of SPIE. vol. 9728, 97280I, SPIE - International Society for Optical Engineering, Proceedings of SPIE - The International Society for Optical Engineering, SPIE Photonics West LASE 2016, San Francisco, California, United States, 13/02/2016. https://doi.org/10.1117/12.2213274

85 μm core rod fiber amplifier delivering 350 W/m. / Johansen, Mette Marie; Michieletto, Mattia; Kristensen, Torben et al.
Proceedings of SPIE. Vol. 9728 SPIE - International Society for Optical Engineering, 2016. 97280I (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AU - Johansen, Mette Marie

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AU - Kristensen, Torben

AU - Alkeskjold, Thomas Tanggaard

AU - Lægsgaard, Jesper

PY - 2016

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N2 - An improved version of the distributed modal filtering (DMF) rod fiber is tested in a high power setup delivering 350 W/m of extracted signal average power limited by the available pump power. The rod fiber is thoroughly tested to record the transverse modal instability (TMI) behavior and also measure degradation of the TMI threshold with operation time due to induced absorption in the active material increasing the thermo-optical heat load. Multiple testing degrades the rod fiber and TMI threshold from >360 W to a satuarated power level of roughly 240 W.

AB - An improved version of the distributed modal filtering (DMF) rod fiber is tested in a high power setup delivering 350 W/m of extracted signal average power limited by the available pump power. The rod fiber is thoroughly tested to record the transverse modal instability (TMI) behavior and also measure degradation of the TMI threshold with operation time due to induced absorption in the active material increasing the thermo-optical heat load. Multiple testing degrades the rod fiber and TMI threshold from >360 W to a satuarated power level of roughly 240 W.

KW - Fibre lasers and amplifiers

KW - Design of specific laser systems

KW - Optical fibre testing and measurement of fibre parameters

KW - Spectral and other filters

KW - Other fibre optical devices and techniques

KW - Optical coatings and filters

KW - Fibre optics

KW - laser stability

KW - optical fibre amplifiers

KW - optical fibre filters

KW - optical fibre testing

KW - optical pumping

KW - thermo-optical effects

KW - distributed modal filtering rod fiber

KW - rod fiber amplifier

KW - pump power

KW - transverse modal instability threshold

KW - absorption

KW - size 85 mum

KW - satuarated power thermo-optical

KW - thermo-optical heat load

KW - active material

KW - Applied Mathematics

KW - Computer Science Applications

KW - Electrical and Electronic Engineering

KW - Electronic, Optical and Magnetic Materials

KW - Condensed Matter Physics

KW - Fiber

KW - Fiber optics amplifiers and oscillators

KW - Lasers

KW - Thermal effects

KW - Fiber lasers

KW - Fibers

KW - Laser applications

KW - Active material

KW - Induced absorption

KW - Modal filtering

KW - Modal instabilities

KW - Multiple testing

KW - Signal average

KW - Thermo-optical

KW - Fiber amplifiers

U2 - 10.1117/12.2213274

DO - 10.1117/12.2213274

M3 - Article in proceedings

VL - 9728

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Proceedings of SPIE

PB - SPIE - International Society for Optical Engineering

T2 - SPIE Photonics West LASE 2016

Y2 - 13 February 2016 through 18 February 2016

ER -

85 μm core rod fiber amplifier delivering 350 W/m

Abstract

Conference

Keywords

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Cite this