Broad spectral pulse operation of 2 μm Tm:YAP laser based on reflection-type carbon nanotube absorber

Qu, Zun-Shi; M., B.; Fan, X.W.; Liu, J.; Wang, Y. G.

doi:10.1134/s1054660x12030176

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…Diode-pumped passively Q-switched mode-locked Tm 3+ doped crystals laser is one of the most attractive ways to produce an efficient and reliable ∼2 µm light source for the above-mentioned applications. The ∼2.0 µm pulse laser oscillation of Tm 3+ has been demonstrated in numerous hosts such as Tm:KYW, Tm:YAP, and so on [5][6][7][8][9]. Sc 2 SiO 5 (SSO) crystal host with monoclinic structure obtained by the Czochralski method is of considerable interest owing to the favorable physical chemical and thermal properties.…”

Section: Introductionmentioning

confidence: 99%

“…It exhibits fast recovery time, chemical stability, and broad spectral range, roughly between 1 and 2 µm [19][20][21][22]. Recently, the characteristics of Q-switched mode-locking Tm:YAP lasers with SWCNT as the saturable absorber in ∼2 µm were actively investigated [8,9]. As far as we know, there are no reports about diode-pumped Q-switched mode-locking Tm:SSO lasers at ∼2 µm wavelength.…”

Section: Introductionmentioning

confidence: 99%

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PassiveQ-switched mode locking of a diode-pumped Tm:SSO laser near 2 μm

Liu

Zheng

et al. 2013

Laser Phys. Lett.

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With a fiber-coupled 790 nm laser diode array as the pump source and a 4 at.% Tm:Sc 2 SiO 5 (Tm:SSO) crystal, laser action near 2 µm wavelength was successfully obtained with a compact four-mirror fold cavity. Using broadband carbon nanotube as the saturable absorber, a passively Q-switched mode-locked (QML) Tm:SSO laser is realized for the first time. 100% modulation depth of mode locking has been achieved. The duration of the mode-locked pulse is estimated to be about sub-100 ps with 92.6 MHz repetition rate within a Q-switched pulse envelope. The spectrum of the QML laser is centered at 1967.4 nm with a broad spectral region of ∼23 nm. A maximum average output power of 195 mW and Q-switched pulse energy of 4.7 µJ is obtained. The dependence of the operational parameters on pump power was also investigated experimentally.

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