Efficient resonantly pumped tape cast composite ceramic Er:YAG laser at 1645 nm

Ter‐Gabrielyan, Nikolay; Merkle, Larry D.; Kupp, Elizabeth R.; Messing, Gary L.; Dubinskii, Mark

doi:10.1364/ol.35.000922

Cited by 72 publications

(34 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Up to date, a large number of methods, such as spin-assembly, 3,4 tape casting process, 5,6 magnetron sputtering, 7 plasma-spray, 8 hot molding, 9 pressure assisted sintering, 10 laser cladding 11 and electro-deposition 12 have been developed to fabricate composite structures. However, it seems that only tape casting process shows great potential in fabricating multilayer composite laser ceramics.…”

Section: Introductionmentioning

confidence: 99%

Multilayer YAG/Re:YAG/YAG laser ceramic prepared by tape casting and vacuum sintering method

Tang

Cao

Huang

et al. 2012

Journal of the European Ceramic Society

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Multilayer YAG/Re:YAG/YAG laser ceramic prepared by tape casting and vacuum sintering method

Tang

Cao

Huang

et al. 2012

Journal of the European Ceramic Society

View full text Add to dashboard Cite

“…As a novel laser medium, the polycrystalline ceramics are advantageous over single crystals in many aspects, such as rapid and large volume fabrication, flexibility in doping concentration and profile, and low cost. With the development of the ceramic fabrication technology, the Er:YAG ceramic laser has been reported to have similar laser efficiency and spectroscopic parameters to those of the single crystals [7][8][9]. In 2010, a composite Er:YAG ceramic laser generated a quasi-CW output power of 6.8 W at 1645 nm and the corresponding slope efficiency of 56.9 % with respect to the absorbed pump power.…”

mentioning

confidence: 99%

Passively Q-switched 1617-nm polycrystalline ceramic Er:YAG laser using a Cr:ZnSe saturable absorber

et al. 2015

View full text Add to dashboard Cite

methane in the atmosphere, the 1617-nm transition is more promising for applications which need long-distance propagation in free space than the 1645-nm transition [2,3].YAG crystal is used as the most common laser gain host because of its unique thermomechanical properties. Er:YAG crystal lasers have been demonstrated both in continuous-wave and Q-switched modes [1][2][3][4][5]. In 2007, a single-crystal Er:YAG which yielded a continuous-wave (CW) output power of 31 W was demonstrated at 1617 nm with a slope efficiency of 47 % with respect to incident pump power [3]. In 2011, an actively Q-switched 1617-nm single-crystal Er:YAG laser with pulse energy up to 30.5 mJ and pulse duration of <20 ns at 20 Hz repetition rate has been reported [4]. However, the conventional crystals cannot be made in large scale or fabricated composite with a complicated configuration to enhance the laser performance [6]. As a novel laser medium, the polycrystalline ceramics are advantageous over single crystals in many aspects, such as rapid and large volume fabrication, flexibility in doping concentration and profile, and low cost. With the development of the ceramic fabrication technology, the Er:YAG ceramic laser has been reported to have similar laser efficiency and spectroscopic parameters to those of the single crystals [7][8][9]. In 2010, a composite Er:YAG ceramic laser generated a quasi-CW output power of 6.8 W at 1645 nm and the corresponding slope efficiency of 56.9 % with respect to the absorbed pump power. In the next year, Zhang et al. [10][11][12] reported a 1617-nm Er:YAG ceramic which yielded an output power of 14 W corresponding to a slope efficiency of 51.7 % with respect to the incident pump power. In the Q-switched mode, the laser performance of the Er:YAG ceramic laser has been reported by using graphene as saturable absorber. However, the graphene Q-switched lasers typically have pulse durations of the order of microseconds. To get short pulse Abstract We report on a passively Q-switched polycrystalline ceramic Er:YAG laser by using a Cr:ZnSe crystal as a saturable absorber. When pumped by a 1532-nm Er-, Yb-doped fiber laser with the maximum power of 12.4 W, the laser yielded pulses of 28.8 ns duration at 1617 nm by using a saturable absorber with an initial transmission of 80 %. The corresponding peak power was up to 11.3 kW at a repetition rate of 2.17 kHz. The dependence of the pulse duration and repetition rate on the pump power was experimentally studied. The numerical and experimental results both show that the pulse duration was mainly determined by the initial transmission of the saturable absorber and slightly affected by the transmission of the output coupler. At last, we give some prospects for further narrowing down the pulse duration.

show abstract

“…~1.6 μm eye-safe wavelength regime lasers based on Er 3+ -doped gain media have many important applications in remote sensing, free space communications and as the pump source for generating 3-5 μm mid-infrared radiations via nonlinear frequency conversion. In recent years, high performance laser operations at this wavelength region are also demonstrated with ceramic structured Er: Sc2O3, Er:Y2O3 and Er:YAG gain materials [5][6][7][8][9][10]. Among these differential ceramic hosts, YAG is the most technologically advanced and popular one with spectral and thermo-mechanical robustness.…”

Section: +mentioning

confidence: 99%

High Power Continuous-Wave and Graphene Q-switched Operation of Er:YAG Ceramic Lasers at ~1.6 ㎛

Wang

Chen

Shen

et al. 2013

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

We report on high-power continuous-wave operations of an Er:YAG ceramic laser in-band pumped by a cladding-pumped Er,Yb fiber laser at 1532 nm. With an output coupler of 10% transmission, the ceramic laser yielded 16.7 W of continuous-wave output at 1645 nm for 28.8 W of incident pump power, corresponding to a slope efficiency of 61.0% with respect to the incident pump power. The lasing wavelength switched to 1617 nm when output couplers of > 20% transmission were used. Up to 16.2 W of 1617 nm output was generated for 33.0 W of incident pump power, corresponding to a slope efficiency of 51.8%. Graphene Q-switched operation of Er:YAG cermic laser at 1645 nm was also demonstrated with stable pulses of 30-74 kHz repetition rates and 1.5-6.4 μs pulse widths.

show abstract

Efficient resonantly pumped tape cast composite ceramic Er:YAG laser at 1645 nm

Cited by 72 publications

References 10 publications

Multilayer YAG/Re:YAG/YAG laser ceramic prepared by tape casting and vacuum sintering method

Multilayer YAG/Re:YAG/YAG laser ceramic prepared by tape casting and vacuum sintering method

Passively Q-switched 1617-nm polycrystalline ceramic Er:YAG laser using a Cr:ZnSe saturable absorber

High Power Continuous-Wave and Graphene Q-switched Operation of Er:YAG Ceramic Lasers at ~1.6 ㎛

Contact Info

Product

Resources

About