A tunable Q-switched Ho3+-doped fluoride fiber laser

Jianfeng Li, Yi Yang, Darren D. Hudson, Yong Liu, Stuart D. Jackson

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A tunable actively Q-switched cascade Ho3+-doped fluoride fiber laser operating in the mid-infrared region is demonstrated. Using a planar diffraction grating in the Littrow configuration for tuning, stable pulse trains from the 5I65I7 transition were observed over a 80 nm tuning range from 2.95 to 3.031 μm with a bandwidth of ∼1 nm. Gain-switched pulse trains from the 5I 75I8 transition at 2.074 μm induced by the 5I65I7 Q-switched pulses were also produced over the entire tuning range. At maximum pump power and at an acousto-optic modulator repetition rate of 40 kHz, >15 μJ pulse energy and 300-410 ns duration pulses were obtained from 2.97 μm to 3.015 μm, respectively. To the best of our knowledge, this is the first tunable Q-switched pulsed fiber laser operating in the mid-infrared region.

LanguageEnglish
Article number045107
Pages1-4
Number of pages4
JournalLaser Physics Letters
Volume10
Issue number4
DOIs
Publication statusPublished - Apr 2013
Externally publishedYes

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Fiber lasers
fiber lasers
fluorides
Tuning
tuning
pulses
Infrared radiation
Diffraction gratings
Pulsed lasers
Modulators
Optics
acousto-optics
gratings (spectra)
Pumps
Bandwidth
modulators
repetition
pulsed lasers
cascades
pulse duration

Cite this

Li, Jianfeng ; Yang, Yi ; Hudson, Darren D. ; Liu, Yong ; Jackson, Stuart D. / A tunable Q-switched Ho3+-doped fluoride fiber laser. In: Laser Physics Letters. 2013 ; Vol. 10, No. 4. pp. 1-4.
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abstract = "A tunable actively Q-switched cascade Ho3+-doped fluoride fiber laser operating in the mid-infrared region is demonstrated. Using a planar diffraction grating in the Littrow configuration for tuning, stable pulse trains from the 5I6 → 5I7 transition were observed over a 80 nm tuning range from 2.95 to 3.031 μm with a bandwidth of ∼1 nm. Gain-switched pulse trains from the 5I 7 → 5I8 transition at 2.074 μm induced by the 5I6 → 5I7 Q-switched pulses were also produced over the entire tuning range. At maximum pump power and at an acousto-optic modulator repetition rate of 40 kHz, >15 μJ pulse energy and 300-410 ns duration pulses were obtained from 2.97 μm to 3.015 μm, respectively. To the best of our knowledge, this is the first tunable Q-switched pulsed fiber laser operating in the mid-infrared region.",
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A tunable Q-switched Ho3+-doped fluoride fiber laser. / Li, Jianfeng; Yang, Yi; Hudson, Darren D.; Liu, Yong; Jackson, Stuart D.

In: Laser Physics Letters, Vol. 10, No. 4, 045107, 04.2013, p. 1-4.

Research output: Contribution to journalArticleResearchpeer-review

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AB - A tunable actively Q-switched cascade Ho3+-doped fluoride fiber laser operating in the mid-infrared region is demonstrated. Using a planar diffraction grating in the Littrow configuration for tuning, stable pulse trains from the 5I6 → 5I7 transition were observed over a 80 nm tuning range from 2.95 to 3.031 μm with a bandwidth of ∼1 nm. Gain-switched pulse trains from the 5I 7 → 5I8 transition at 2.074 μm induced by the 5I6 → 5I7 Q-switched pulses were also produced over the entire tuning range. At maximum pump power and at an acousto-optic modulator repetition rate of 40 kHz, >15 μJ pulse energy and 300-410 ns duration pulses were obtained from 2.97 μm to 3.015 μm, respectively. To the best of our knowledge, this is the first tunable Q-switched pulsed fiber laser operating in the mid-infrared region.

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