Tunable CW alexandrite laser

Walling, J. C.; Peterson, O. G.; Morris, Robert C.

doi:10.1109/jqe.1980.1070451

Cited by 74 publications

(11 citation statements)

References 3 publications

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“…There exists a relatively large number of Cr 3 -doped materials in which lasing has been reported [17]. Only a few, like Cr:colquiriites (Cr:LiSAF [18], Cr:LiCAF [17], Cr:LiSGaF [19]), emerald (Cr:B 3 Al 2 SiO 3 6 ) [20,21], and alexandrite (Cr:BeAl 2 O 4 ) [22][23][24][25][26] are suitable for efficient laser operation with slope efficiencies above 50% since most of the other candidates suffer from strong excited-state absorption. In this work, our attention has been focused on alexandrite due to its blueshifted gain profile compared to Cr:colquiriites.…”

Section: Introductionmentioning

confidence: 99%

“…Diverse excitation bands (broadband 4 T 1∕2 excitations and narrowband R 1∕2 excitations) allow different pump options for alexandrite. Flashlamps [45], Xe/Hg arc lamps [25,46], krypton ion lasers (647 nm) [47], dye lasers (615-680 nm) [36], frequencydoubled neodymium lasers around 530 nm [48,49], and even sunlight [50] have been used for pumping cw alexandrite lasers. With lamp pumping, output powers as high as 60 W could be obtained.…”

Section: Introductionmentioning

confidence: 99%

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Tapered diode-pumped continuous-wave alexandrite laser

et al. 2013

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We describe a low-cost and efficient alexandrite (Cr:BeAl 2 O 4 ) laser that is pumped by a high-brightness tapered diode laser (TDL). The tapered diode (TD) provides up to 1.1 W of output power and its wavelength can be finetuned to either 680.4 nm (R1 line) or 678.5 nm (R2 line) for efficient in-line pumping. Continuous-wave (cw) output powers of 200 mW, slope efficiencies as high as 38%, and a cw tuning range extending from 724 to 816 nm have been achieved. To the best of our knowledge, the cw power levels and slope efficiencies are the highest demonstrated so far from such a minimal complexity and low-cost system based on the alexandrite gain medium. Consequently, TDs operating in the red spectral region have the potential to become the standard pump sources for cw alexandrite lasers in the near future.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tapered diode-pumped continuous-wave alexandrite laser

et al. 2013

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“…We will choose It.=0·765#-Lm as the operating wavelength because the alexandrite laser delivers maximum power at this wavelength (Walling et al 1980 a).…”

Section: The Choice Of Lasermentioning

confidence: 99%

High-speed optoelectronic gallium arsenide switch triggered by mode-locked laser pulses

Demokan

Ozyazici

1983

International Journal of Electronics

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The performance of an optoelectronic semiconductor switch triggered by mode-locked laser pulses is investigated theoretically. The interaction of the laser light with the semiconductor is represented by a non-lineer partia.l differential equation which is solved by computational means. The mode-locked lasers which. are considered to trigger the switch are the alexandrite laser (0'765 I'm) and the dye laser (0,61 ,.m).The semiconducting material considered in the interaction is aemi-insulaaing gallium arsenide which is specially eompensated to have intrinsio properties (particularly a very high initial resistivity). The results show. that the switch can have a response time of the order of several picoseconds, an • off ' time of the order of a few nanoseconds and a repetition rate approaching 1 GHz.

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“…It has unique properties as a broadband solid state laser [1,2]. Its attractive laser characteristics include room temperature operation, flashlamp pumping, simple structure for devices, high power output and broad tunability.…”

Section: Introductionmentioning

confidence: 99%

Nuclear Quadrupole Interactions of ²⁷Al in Alexandrite Single Crystal

Yeom

Choh

Hong

et al. 1998

Zeitschrift Für Naturforschung A

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In an alexandrite single crystal four sets of NMR spectra for 27 A1 (7=5/2) were observed in the crystallographic ab, be, and ca planes. The AI (I) center has four magnetically inequivalent Al sites, whereas the AI (II) center has two. The nuclear quadrupole coupling constant and asymmetry parameter of A1(I) and AI (II) in an alexandrite crystal were determined. Within the experimental accuracy, our parameters turned out to have the same values as those of a chrysoberyl crystal.

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Tunable CW alexandrite laser

Cited by 74 publications

References 3 publications

Tapered diode-pumped continuous-wave alexandrite laser

Tapered diode-pumped continuous-wave alexandrite laser

High-speed optoelectronic gallium arsenide switch triggered by mode-locked laser pulses

Nuclear Quadrupole Interactions of ²⁷Al in Alexandrite Single Crystal

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Tunable CW alexandrite laser

Cited by 74 publications

References 3 publications

Tapered diode-pumped continuous-wave alexandrite laser

Tapered diode-pumped continuous-wave alexandrite laser

High-speed optoelectronic gallium arsenide switch triggered by mode-locked laser pulses

Nuclear Quadrupole Interactions of 27Al in Alexandrite Single Crystal

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Nuclear Quadrupole Interactions of ²⁷Al in Alexandrite Single Crystal