Gain-switched CW fiber laser for improved supercontinuum generation in a PCF

Casper Larsen; Danny Noordegraaf; P.M.W. Skovgaard; K.P. Hansen; Kent Erik Mattsson; Ole Bang

doi:10.1364/OE.19.014883

Gain-switched CW fiber laser for improved supercontinuum generation in a PCF

Casper Larsen
, Danny Noordegraaf
, P.M.W. Skovgaard
, K.P. Hansen
, Kent Erik Mattsson
, Ole Bang

NKT Group

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

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Abstract

We demonstrate supercontinuum generation in a PCF pumped by a gain-switched high-power continuous wave (CW) fiber laser. The pulses generated by gain-switching have a peak power of more than 700 W, a duration around 200 ns, and a repetition rate of 200 kHz giving a high average power of almost 30 W. By coupling such a pulse train into a commercial nonlinear photonic crystal fiber, a supercontinuum is generated with a spectrum spanning from 500 to 2250 nm, a total output power of 12 W, and an infrared flatness of 6 dB over a bandwidth of more than 1000 nm with a power density above 5 dBm/nm (3 mW/nm). This is considerably broader than when operating the same system under CW conditions. The presented approach is attractive due to the high power, power scalability, and reduced system complexity compared to picosecond-pumped supercontinuum sources. © 2011 Optical Society of America.

Original language	English
Journal	Optics Express
Volume	19
Issue number	16
Pages (from-to)	14883-14891
ISSN	1094-4087
DOIs	https://doi.org/10.1364/OE.19.014883
Publication status	Published - 2011

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/abstract.cfm?URI=oe-19-16-14883. 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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@article{07c3b52a6d5241dd898b5da00e3b727c,

title = "Gain-switched CW fiber laser for improved supercontinuum generation in a PCF",

abstract = "We demonstrate supercontinuum generation in a PCF pumped by a gain-switched high-power continuous wave (CW) fiber laser. The pulses generated by gain-switching have a peak power of more than 700 W, a duration around 200 ns, and a repetition rate of 200 kHz giving a high average power of almost 30 W. By coupling such a pulse train into a commercial nonlinear photonic crystal fiber, a supercontinuum is generated with a spectrum spanning from 500 to 2250 nm, a total output power of 12 W, and an infrared flatness of 6 dB over a bandwidth of more than 1000 nm with a power density above 5 dBm/nm (3 mW/nm). This is considerably broader than when operating the same system under CW conditions. The presented approach is attractive due to the high power, power scalability, and reduced system complexity compared to picosecond-pumped supercontinuum sources. {\textcopyright} 2011 Optical Society of America.",

author = "Casper Larsen and Danny Noordegraaf and P.M.W. Skovgaard and K.P. Hansen and Mattsson, \{Kent Erik\} and Ole Bang",

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/abstract.cfm?URI=oe-19-16-14883. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.",

year = "2011",

doi = "10.1364/OE.19.014883",

language = "English",

volume = "19",

pages = "14883--14891",

journal = "Optics Express",

issn = "1094-4087",

publisher = "Optica Publishing Group (formerly OSA)",

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TY - JOUR

T1 - Gain-switched CW fiber laser for improved supercontinuum generation in a PCF

AU - Larsen, Casper

AU - Noordegraaf, Danny

AU - Skovgaard, P.M.W.

AU - Hansen, K.P.

AU - Mattsson, Kent Erik

AU - Bang, Ole

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/abstract.cfm?URI=oe-19-16-14883. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

PY - 2011

Y1 - 2011

N2 - We demonstrate supercontinuum generation in a PCF pumped by a gain-switched high-power continuous wave (CW) fiber laser. The pulses generated by gain-switching have a peak power of more than 700 W, a duration around 200 ns, and a repetition rate of 200 kHz giving a high average power of almost 30 W. By coupling such a pulse train into a commercial nonlinear photonic crystal fiber, a supercontinuum is generated with a spectrum spanning from 500 to 2250 nm, a total output power of 12 W, and an infrared flatness of 6 dB over a bandwidth of more than 1000 nm with a power density above 5 dBm/nm (3 mW/nm). This is considerably broader than when operating the same system under CW conditions. The presented approach is attractive due to the high power, power scalability, and reduced system complexity compared to picosecond-pumped supercontinuum sources. © 2011 Optical Society of America.

AB - We demonstrate supercontinuum generation in a PCF pumped by a gain-switched high-power continuous wave (CW) fiber laser. The pulses generated by gain-switching have a peak power of more than 700 W, a duration around 200 ns, and a repetition rate of 200 kHz giving a high average power of almost 30 W. By coupling such a pulse train into a commercial nonlinear photonic crystal fiber, a supercontinuum is generated with a spectrum spanning from 500 to 2250 nm, a total output power of 12 W, and an infrared flatness of 6 dB over a bandwidth of more than 1000 nm with a power density above 5 dBm/nm (3 mW/nm). This is considerably broader than when operating the same system under CW conditions. The presented approach is attractive due to the high power, power scalability, and reduced system complexity compared to picosecond-pumped supercontinuum sources. © 2011 Optical Society of America.

U2 - 10.1364/OE.19.014883

DO - 10.1364/OE.19.014883

M3 - Journal article

SN - 1094-4087

VL - 19

SP - 14883

EP - 14891

JO - Optics Express

JF - Optics Express

IS - 16

ER -

Gain-switched CW fiber laser for improved supercontinuum generation in a PCF

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