Temperature Dependence of a Diode-Pumped Cryogenic Er:YAG Laser

Ter‐Gabrielyan, Nikolay; Dubinskii, Mark; Newburgh, G. Alex; Michael, Arockiasamy; Merkle, Larry D.

doi:10.1364/oe.17.007159

Cited by 43 publications

(33 citation statements)

References 24 publications

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“…One way to increase the range of the emitter is to use the 1617 nm emission line, which is free of absorption. The 1617 nm wavelength was observed in free running at temperature below 90 K [7], in high loss cavities [5]o rw i t h injection seeding [8] with a diffraction limited Er:Yb fiber laser as pump source. Recently, directly diode-pumped emitters achieved 8 W in CW mode with 100 W of incident pump power in a waveguided configuration [9], and 11.8 mJ pulses in actively Q-switched regime [10].…”

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confidence: 99%

Passively Q-switched diode-pumped Er:YAG solid-state laser

et al. 2013

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OCIS codes: 140.3580, 140.3540, 140.3500, 140.3070International audienceWe demonstrated laser operation of a passively Q-switched diode-pumped Er:YAG solid-state laser emitting at 1645 or 1617 nm depending on the initial transmission of the Cr:ZnSe saturable absorber. The crystal emitted up to 10 W at 1645 nm and up to 8 W at 1617 nm in CW mode while pumped with 65 W of incident pump power at 1533 nm. In passive Q-switched mode with 40 W of incident power, a Cr:ZnSe saturable absorber with initial transmission of 85% led to 330 μJ pulse energy, 61 ns pulse duration at a repetition rate of 1460 Hz at 1645 nm. An 80% initial transmission Cr:ZnSe sample led to 510 μJ energy pulses, 41 ns pulse duration at a repetition rate of 820 Hz with a central wavelength change from 1645 to 1617 nm. This is the first reported passively Q-switched diode-pumped Er:YAG laser operating on the 4 I13∕2 → 4 I15∕2 transition

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confidence: 99%

Passively Q-switched diode-pumped Er:YAG solid-state laser

et al. 2013

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“…The strongest emission lines overlap strong absorptions near 1530 nm and thus are useless for lasing, but there are very satisfactorily strong emission lines between 1617 and 1660 nm (stimulated emission cross sections of 5-6×10 -21 cm 2 ) that have little absorption to overcome to reach laser threshold. Er:YAG has been lased on these transitions by a number of groups, some using laser pumping and others the potentially simpler and more efficient method of diode pumping (5,(20)(21)(22)(23)(24)(25)(26). There are important differences between these room-temperature spectra and the corresponding spectra at liquid nitrogen temperature, as seen in figure 2.…”

Section: Methods -Analysismentioning

confidence: 99%

“…This gives an extremely small -qua ntum defect,‖ meaning that the absorbed pump photon has only slightly more energy than the emitted laser wavelength, so that very little of the pump photon's energy is deposited in the gain medium as heat. This approach has been demonstrated by our own group and others for several laser ions, notably trivalent ytterbium (Yb 3+ ), Er 3+ , and Ho 3+ (3)(4)(5)(6). The diode lasers at wavelengths suited to pump Yb 3+ are particularly efficient, but that ion emits at wavelengths where the eye is quite sensitive to damage.…”

Section: Introductionmentioning

confidence: 99%

Host-dependence of Trivalent Erbium (Er3+) Spectra Relevant to Solid-state Lasers: Yttrium Aluminum Garnet (YAG) and Sesquioxides

Merkle¹,

Ter‐Gabrielyan²

2011

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“…A number of Er based cryogenic lasers have also been reported in the literature [141][142][143][144][145][146][147]. A group at the U.S. Army Research Laboratory has investigated Er:Y2O3 [141,142], Er:Sc2O3 [144], and .…”

Section: Er Cryogenic Lasersmentioning

confidence: 99%

“…A group at the U.S. Army Research Laboratory has investigated Er:Y2O3 [141,142], Er:Sc2O3 [144], and . One higher average power demonstration has been discussed in the literature as well, at cryogenic temperatures.…”

Section: Er Cryogenic Lasersmentioning

confidence: 99%

The Application of Cryogenic Laser Physics to the Development of High Average Power Ultra-Short Pulse Lasers

Brown¹,

Tornegård²,

Kolis

et al. 2016

Applied Sciences

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Ultrafast laser physics continues to advance at a rapid pace, driven primarily by the development of more powerful and sophisticated diode-pumping sources, the development of new laser materials, and new laser and amplification approaches such as optical parametric chirped-pulse amplification. The rapid development of high average power cryogenic laser sources seems likely to play a crucial role in realizing the long-sought goal of powerful ultrafast sources that offer concomitant high peak and average powers. In this paper, we review the optical, thermal, thermo-optic and laser parameters important to cryogenic laser technology, recently achieved laser and laser materials progress, the progression of cryogenic laser technology, discuss the importance of cryogenic laser technology in ultrafast laser science, and what advances are likely to be achieved in the near-future.

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Temperature Dependence of a Diode-Pumped Cryogenic Er:YAG Laser

Cited by 43 publications

References 24 publications

Passively Q-switched diode-pumped Er:YAG solid-state laser

Passively Q-switched diode-pumped Er:YAG solid-state laser

Host-dependence of Trivalent Erbium (Er3+) Spectra Relevant to Solid-state Lasers: Yttrium Aluminum Garnet (YAG) and Sesquioxides

The Application of Cryogenic Laser Physics to the Development of High Average Power Ultra-Short Pulse Lasers

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