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Product Description:
Laser crystal rods are the most important part of pumped solid state lasers. The host materials are chosen to obtain a desired combination of optical, mechanical, and thermal properties. They are doped with ions of chromium (Cr) neodymium (Nd) or titanium (Ti) to provide gain media for the stimulated emission. Recently diode pump laser has replaced flashlamp in many applications in terms of compactness and efficiency. Frequency-doubled technology has enabled the wavelength extended into UV range. The first laser was a small ruby rod that was surrounded by a helical flash lamp. It becomes one of the most important inventions in last century. Ruby is chromium doped sapphire.
We provides high quality neodymium doped yttrium vanadate (ND:YVO4), neodymium doped yttrium aluminum garnet (ND:Y3Al5O12), titanium doped sapphire (Ti3+:Al2O3) and Chromium Doped Yttrium Aluminum Garnet (Cr4+:Y3Al5O12)
You may refer to this page (http://www.pmoptics.com/crystals.html) for material properties, absorption coefficient, emission cross-section and others.
Specifications (ND:YVO4):
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Nd: Dopant Concentration
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0.1 ~ 3 atom% |
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Concentration Tolerance
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< 10%
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Maximum length
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20 mm |
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Dimension Tolerance
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± 0.1 mm |
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Orientation
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A-cut or C-cut |
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Orientation Tolerance
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± 0.5° |
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End Surface
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Plano/Plano |
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Surface Quality
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10 ~ 5 |
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Flatness
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λ/10 @ 632.8 nm
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Clear Aperture
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> 90% |
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Parallelism
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< 20 arc sec |
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Intrinsic Loss
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< 0.001 cm-1 at 1064 nm
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Chamfer
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~ 0.15mm × 45° |
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Coating
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Specified by customer
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Specifications (ND:Y3Al5O12):
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Nd: Dopant Concentration
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0.5 ~ 1.2 atom% |
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Concentration Tolerance
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< 10%
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Maximum length
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150 mm |
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Rod Diameter Tolerance
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± 0.03 mm |
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Length Tolerance
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± 0.1 mm |
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Orientation
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<111> Crystalline Direction |
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Orientation Tolerance
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± 0.5° |
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Extinction Ratio
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> 28 dB
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Surface Quality
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10 ~ 5 |
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Flatness
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λ/10 @ 632.8 nm
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Clear Aperture
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> 90% |
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Parallelism
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< 20 arc sec |
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Chamfer
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~ 0.15mm × 45° |
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Coating
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Specified by customer
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Specifications (Ti3+:Al2O3):
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Ti3+: Dopant Concentration
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0.06 ~ 0.25 atom% |
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Concentration Tolerance
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< 10%
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Figure of Merit
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100 ~ 300
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Maximum length
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120 mm |
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Maximum Diameter
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20 mm |
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Orientation |
A-axis |
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Orientation
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<111> Crystalline Direction |
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Orientation Tolerance
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± 0.5° |
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End Surface
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Plano/Plano or Brewster/Brewster Cut
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Surface Quality
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20 ~ 10
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Flatness
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λ/4 @ 632.8nm
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Clear Aperture
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> 90% |
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Parallelism
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< 20 arc sec |
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Chamfer
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~ 0.15mm × 45° |
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Coating
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Specified by customer
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Specifications (Cr4+:Y3Al5O12):
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Cr4+: Dopant Concentration
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0.5 ~ 3 atom% |
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Concentration Tolerance
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< 10%
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Maximum length
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120 mm |
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Surface Quality
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10 ~ 5 |
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Flatness
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λ/10 @ 632.8 nm
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Clear Aperture
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> 90% |
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Parallelism
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< 20 arc sec |
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Chamfer
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~ 0.15mm × 45° |
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Coating
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Specified by customer
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