High-power 888-nm-pumped Nd:YVO4 1342-nm oscillator operating in the TEM00 mode

Lenhardt, F.; Nittmann, M.; Bauer, Tobias; Bartschke, J.; L’huillier, Johannes A.

doi:10.1007/s00340-009-3551-7

Cited by 26 publications

(11 citation statements)

References 16 publications

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“…As the optimization is performed at the maximum absorbed pump power P abs,max ≈ 32.5 W, the laser emission only starts at P abs ≈ 28 W. After reaching threshold, the output power is unstable and displays a hysteresis feature between P abs = 29 W and 30 W. After crossing the hysteresis region, the laser emission is stable and only weakly depends on P abs . This behavior is typical for high-power solid-state laser designs and has been reported in [17]. As discussed before, thermal depolarization in the TGG is significant and can lead to a change of the lasing direction and occasional bistable behavior when increasing the pump power.…”

Section: The Fundamental Lasersupporting

confidence: 61%

“…An obvious way is to use a different cavity geometry allowing for two-sided pumping of the active medium. Convex pump couplers can compensate the thermal lens close to the laser crystal, which has proved very efficient in high-power resonators, see for instance [17]. A large part of the output power limitations stems from the additional intracavity elements, such as the Faraday rotator.…”

Section: Discussionmentioning

confidence: 99%

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2.1-watts intracavity-frequency-doubled all-solid-state light source at 671 nm for laser cooling of lithium

Eismann,

Andrea,

Salomon

et al. 2013

Preprint

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We present an all-solid-state laser source emitting up to 2.1 W of single-frequency light at 671 nm developed for laser cooling of lithium atoms. It is based on a diode-pumped, neodymium-doped orthovanadate (Nd:YVO 4 ) ring laser operating at 1342 nm. Optimization of the thermal management in the gain medium results in a maximum multi-frequency output power of 2.5 W at the fundamental wavelength. We develop a simple theory for the efficient implementation of intracavity second harmonic generation, and its application to our system allows us to obtain nonlinear conversion efficiencies of up to 88%. Single-mode operation and tuning is established by adding an etalon to the resonator. The second-harmonic wavelength can be tuned over 0.5 nm, and mode-hop-free scanning over more than 6 GHz is demonstrated, corresponding to around ten times the laser cavity free spectral range. The output frequency can be locked with respect to the lithium D-line transitions for atomic physics applications. Furthermore, we observe parametric Kerr-lens mode-locking when detuning the phase-matching temperature sufficiently far from the optimum value.

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Section: The Fundamental Lasersupporting

confidence: 61%

Section: Discussionmentioning

confidence: 99%

2.1-watts intracavity-frequency-doubled all-solid-state light source at 671 nm for laser cooling of lithium

Eismann,

Andrea,

Salomon

et al. 2013

Preprint

View full text Add to dashboard Cite

show abstract

“…Recently, an output power of 750 W was reported from a multisegmented Nd:YAG using pumping with diode stack at 885 nm [13]. Laser emission at 0.9 lm [14][15][16], at 1.06 lm [17][18][19] and 1.34 lm [20,21] was also obtained in Nd:YAG and Nd vanadates under the pump with diode lasers into the emitting level.…”

Section: Introductionmentioning

confidence: 97%

Q-switched Nd lasers pumped directly into the 4F3/2 emitting level

Pavel

Dascalu

Salamu

et al. 2009

Optics Communications

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“…Additionally, the thermal lens (TL) resulting from the thermal effect is a critical factor for optimizing resonator design and scaling the output power of the laser [3]. So mitigating and quantifying the thermal effect have been the focus of the study of high-power lasers [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…In-band pumping is one of the best methods of reducing the quantum defect heating. However, due to the influence of energy transfer upconversion (ETU) and excited-state absorption (ESA), the quantum defect is not the only factor of determining the thermal effect [5][6][7][8][9]. Some papers have mentioned a significant impact of doping concentration and laser regime (lasing or nonlasing) on the thermal effect of the Nd:YVO 4 crystal [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Temperature dependence of the fractional thermal load of Nd:YVO_4 at 1064 nm lasing and its influence on laser performance

Wang¹,

Yang²,

Zhou³

et al. 2013

Opt. Express

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Temperature dependence of thermal effect for neodymium doped yttrium orthovanadate crystal is quantified by measuring its dioptric power. With the boundary temperature range from 293 K to 353 K, the increase of fractional thermal load (lasing at 1064 nm, pumping at 888 nm) is from 16.9% to 24.9% with lasing, which is attributed to the rise of upconversion parameter and thermal conductivity. The influence of the boundary temperature on the output characteristic of a high-power single frequency laser is also investigated. The maximum output power decreases from 25.3 W to 13.5 W with the increase of boundary temperature from 293 K to 353 K. Analysis results indicate that further power scaling can be achieved by controlling the Nd:YVO(4) temperature to a lower.

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High-power 888-nm-pumped Nd:YVO4 1342-nm oscillator operating in the TEM00 mode

Cited by 26 publications

References 16 publications

2.1-watts intracavity-frequency-doubled all-solid-state light source at 671 nm for laser cooling of lithium

2.1-watts intracavity-frequency-doubled all-solid-state light source at 671 nm for laser cooling of lithium

Q-switched Nd lasers pumped directly into the 4F3/2 emitting level

Temperature dependence of the fractional thermal load of Nd:YVO_4 at 1064 nm lasing and its influence on laser performance

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