Dual wavelength Q-switched cascade laser

Jianfeng Li, Tomonori Hu, Stuart D. Jackson

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A diode-cladding-pumped dual wavelength Q-switched Ho3+-doped fluoride cascade fiber laser operating in the mid-infrared is demonstrated. Stable pulse trains from the 5I6 → 5I7 and 5I75I8 laser transitions were produced, and the μs-level time delay between the pulses from each transition was dependent on the pump power. At maximum pump power and at an acousto-optic modulator repetition rate of 25 kHz, the 5I65I7 transition pulse operated at 3.005 μm, a pulse energy of 29 μJ, and a pulse width of 380 ns; the 5I 75I8 transition pulse correspondingly produced 7 μJ pulse energy and 260 ns pulse width at 2.074 μm. To the best of our knowledge, this is the first demonstration of a Q-switched fiber laser operating beyond 3 μm.

LanguageEnglish
Pages2208-2210
Number of pages3
JournalOptics Letters
Volume37
Issue number12
DOIs
Publication statusPublished - 15 Jun 2012
Externally publishedYes

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cascades
pulses
wavelengths
lasers
fiber lasers
pulse duration
pumps
acousto-optics
Q switched lasers
fluorides
modulators
repetition
time lag
diodes
energy

Cite this

Li, Jianfeng ; Hu, Tomonori ; Jackson, Stuart D. / Dual wavelength Q-switched cascade laser. In: Optics Letters. 2012 ; Vol. 37, No. 12. pp. 2208-2210.
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Dual wavelength Q-switched cascade laser. / Li, Jianfeng; Hu, Tomonori; Jackson, Stuart D.

In: Optics Letters, Vol. 37, No. 12, 15.06.2012, p. 2208-2210.

Research output: Contribution to journalArticleResearchpeer-review

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