<c>

Yb:KGW and Yb:KYW
Crystals
94.4° (KGW)
94.0° (KYW)

NmNg

21.5° (KGW)
18.0° (KYW)<a>Np<b>  Material
Orientation: N or b-cut
Description

Yb:KGW/Yb:KYW
Nm axis is parallel to input/output faces
Other orientations available

Yb3+ doped KY(WO4)2 (KYW) and KGd(WO4)2 (KGW) single crystals arewell known laser crystals for diode and laser pumped solid-state laser
applications.

Doping concentration ! "#$%&' ! "#$"&Yb:KGW and Yb:KYW crystals are used as a lasing materials to generate
ultrashort high power pulses. Yb:KGW can be used as ultrashort pulses            power thin disk lasers.

Dimensions tolerance+0/-0.1 mm

Length tolerance±0.1 mm

The broad spectral emission band of Yb:KYW allows the tuning of
the laser radiation over 1020-1060 nm range and the generation ofSurface quality

10-5 S-D

femtosecond pulses shorter than 70 fs, enhanced storage capacity,wide absorption spectrum at 980 nm and high absorption of pump       pump.

* ; <λ/10 @ 632.8 nm

Parallelism error<10 arcsec

Perpendicularity<10 arcmin

Protective chamfers<0.1 mm x 45°

As compared to YAG or glasses used as hosts for Yb3+, KYW and KGdW
have the advantage of a larger absorption cross section than YAG,
which decreases minimum pump intensity necessary to achievetransparency in the quasi-two-level system of ytterbium.

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Ti:Sapphire Crystals

Features Broad lasing range: 660-1050 nm band Perfect for ultrashort pulse generation
 Ti2O3  JQ !
 Figure of merit (FOM) up to 300 available
 Sizes up 50x50x30 mm or larger are available upon request  Orientation

Optical axis C normal to rod axis

Absorption @ 532 nm on
crystal length
Dimensions toleranceEF!

+0/-0.1 mm

Description
Titanium doped sapphire (Al2O3:Ti3+) is widely used for generating
ultra short femtosecond pulses and wavelength tunable lasers. It has
 =  >#*     ?    ;     
Also these crystals combine supreme physical and optical properties     B    
useful lifetime are an additional advantage. Medical laser systems,
LIDARs, laser spectroscopy, direct femtosecond pulse generation by
Kerr-type mode-locking - these are a few of the existing and potentialapplications.

Length tolerance±0.1 mmSurface quality

10-5 S-D* ; <λ/10 @ 632.8 nm

Transmitted wavefront
distortion (TWD)<λ/4 @ 632.8 nm

Parallelism error
Protective chamfers㼣㼣㼣㻚㼜㼔㼛㼠㼛㼠㼑㼏㼔㼚㼕㼏㼍㻚㼏㼛㻚㼖㼜䛈㻟㻟㻢㻙㻜㻜㻝㻣㻌ᇸ⋢┴䛥䛔䛯䜎ᕷ༡༊༡ᾆ࿴㻌㻝㻙㻞㻙㻝㻣䚷㼀㻱㻸㻦㻜㻠㻤㻙㻤㻣㻝㻙㻜㻜㻢㻣㻌㻌㻲㻭㼄㻦㻜㻠㻤㻙㻤㻣㻝㻙㻜㻜㻢㻤㼑㻙㼙㼍㼕㼘㻦㼢㼛㼏㻬㼜㼔㼛㼠㼛㼠㼑㼏㼔㼚㼕㼏㼍㻚㼏㼛㻚㼖㼜<30 arcsec<0.1 mm x 45°



Nd:YAG Crystals  Orientation
Doping concentration
Extinction ratio
Dimensions tolerance[111]'' !>28 dB+0/-0.1 mm

Length tolerance±0.1 mmSurface quality

10-5 S-D* ; <λ/10 @ 632.8 nm

Parallelism error<10 arcsec

Perpendicularity<10 arcmin

Description

Protective chamfers<0.1 mm x 45°

The Nd:YAG crystal is the most widely used solid-state laser material%;   V    ?    nature make Nd:YAG crystals suitable for high power continuous wave,
high intensity Q-switched and single mode operation.

Miscellaneous

Now, we are able to supply consistently Nd:YAG rods with high opticalhomogeneity, high damage threshold, consistent performance andhigh processing accuracy.

 Custom design production is available
 _  ??
 Rods with barrel grooving are available for better performance
 Mass production at 2000 pcs/month available

Features Wide absorption bandwidth Various end cuts available (plano/plano, wedge/wedge, brewster
cut, etc.)

 Low lasing threshold Various dielectric coatings are available. Complex coatings are
realized with IBS technique ^ 
 Large luminescence cross-section
 Linearly polarized emission and single-mode output

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Yb:YAG Crystals

 Ideal for diode pumping j     V {''!
 j   V  |!
 Broad absorption band, about 18 nm @ 940 nm
 High thermal conductivity and strength  

Orientation
Doping concentration
Extinction ratio[111]
QQ !>28 dB

Description

Dimensions tolerance

Ytterbium doped Yttrium Aluminum Garnet (Yb:YAG) crystal is one of
the most promising laser-active materials.

Length tolerance±0.1 mmSurface quality

10-5 S-D* ; <λ/10 @ 632.8 nm

Parallelism error<10 arcsec

Perpendicularity<10 arcmin

Protective chamfers<0.1 mm x 45°

It is more suitable for diode-pumping than the traditional Nd-dopedsystems. It can be pumped at 0.94 μm laser output. Compared withthe commonly used Nd:YAG crystal, Yb:YAG crystal has a much larger
absorption bandwidth to reduce thermal management requirements
for diode lasers, a longer upper-state lifetime, three to four times lower
thermal loading per unit pump power. Yb:YAG crystal is expected toreplace Nd:YAG crystal for high power diode-pumped lasers and otherpotential applications.

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Co:Spinel (Co2+:MgAl2O4)
Crystals  

Absorption cross section

3.5×10-19 cm2 @ 1540 nm

Dimensions tolerance
Surface quality

10-5 S-D* ; <λ/10 @ 632.8 nm

Parallelism error<10 arcsec

Perpendicularity<10 arcmin

Protective chamfers<0.1 mm x 45°

  ; ? 

MiscellaneousDescription

 Custom design production is also available

Co2+:MgAl2O4 (or Co:Spinel) is a relatively new material for saturable
absorber passive Q-switching in lasers emitting from 1.2 to 1.6 μm, inparticular, for eye-safe 1.54 μm Er:glass laser.

 _  ??
 Various dielectric coatings are available

High absorption cross section of 3.5 x 10-19 cm2 permits Q-switching~ #    ?    ; and diode-laser pumping. Negligible excited-state absorption resultsin high contrast of Q-switch, i.e. the ratio of initial (small signal) tosaturated absorption is higher than 10. Finally, excellent optical,+0/-0.1mm

 Complex coatings are realized with IBS techniquemechanical, and thermal properties of the crystal give an opportunity
to design compact and reliable laser sources with this passive
Q-switch.

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