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Broadband,Inc.
〒121-0832
東京都足立区
古千谷本町4-7-9
お問い合わせ
TEL:03-5838-0082
ask@bblaser.com
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取扱製品 |
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SIOM |
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上海の国立研究所の製品です。3at%Nd:YAGが有名
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SUPER-
Nd:YAG Laser Rods |
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During the last decade, Nd:YVO4 has been
developed as a promising substitutes for Nd:YAG in diode-pumped lasers
due to its high absorption and emission cross-sections. However, the
applications of YVO4 are limited due to its poor
physical-mechanical properties and growth difficulty itc. Now, we have
developed the high-doped Nd:YAG(SUPER-Nd:YAG) recently. It shows high
absorption cross-section and have many advantages over Nd:YVO4.
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Due to
the cubic symmetry and high quality, Nd:YAG is easy to operate
with TEM00 mode |
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Nd:YAG
can be Q-switched with Cr4+:YAG directly |
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Nd:YAG
can produce blue laser with the frequency-doubling of 946nm |
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Nd:YAG
can be operated in a very high power laser up to kW level |
The high neodymium-ion doped YAG has been grown by the
novel technique-Temperature Gradient Technique(TGT) in SIOM. The Nd
concentration can be doped up to 3at%. As large as F 100´ 80mm bulk
crystals with excellent optical homogeneity, less scattering
particles, low dislocation density have been obtained.
Laser Properties
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SUPER-Nd:YAG shows high absorption coefficients
at pumping wavelengths. Therefore, a crystal short-in
length(e.g.1mm) is preferred, and compact microchip lasers can
be constructed by using SUPER-Nd:YAG.
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Due to the broader and smoothly-varied bandwidth
of absorption, it allows of less stringent requirements of
temperature control .
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Almost same output have been achieved both in a
(111)-cut 1mm long Nd:YAG and an a-cut 1mm long YVO4
microchip lasers with a very short (9mm) laser cavity. |
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Spectra properties with
concentration
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Nd-Dopant[at%] |
2.5 |
2 |
1.5 |
1.3 |
1.1 |
1 |
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Fluorescence lifetime[ms] |
160 |
180 |
200 |
210 |
220 |
240 |
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Absorption Coefficient
at800nm[cm-1] |
7.55 |
6.57 |
5.36 |
4.66 |
3.88 |
3.55 |
Standard Specs. of SUPER-Nd:YAG
crystals
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Nd Doapant Level |
0.7, 0.9, 1.0,
1.1, 1.3, 1.5, 2.0, 2.5± 0.1at% |
| Standard
Dimensions |
3x 3x 3mm3,
3x 3x 1mm3 |
| Diameter |
3-10mm |
| Length |
1-50mm |
| Optical quality |
<0.5
fringes/inch |
| Diameter
tolerance |
± 0.05mm |
| Length
tolerance |
± 0.7mm |
| End face
perpendicularity |
<5 arc minutes |
| Parallelism |
<10 arc
seconds |
| Flatness |
l /10 |
| Scratch/Dig
Code |
10/5 |
| Coating |
R<0.25% per
surface@1064nm |
Note:
We have also a large quantity of standard F (3~ 5)´ (40~ 50)mm 1at%
Nd:YAG in stock. |
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Cr:Mg2SiO4 |
Sapphire |
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Cr:4+YAG |
YAG |
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Super
Nd:YAG |
Yb:YAG |
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Nd:YVO4 |
Ti:Sapphire Tunable Laser Crystals |
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