LASER RODS Nd:YAG DATA SHEET0 pages

1249 Quarry Lane, Suite 100, Pleasanton, CA 94566 USA
Tel: (925)462-6888, Fax: (925)462-8388 sales@newsourcetechnology.com
WWW.NEWSOURCETECHNOLOGY.COM
New Source Technology is a major supplier of Nd:YAG rods for
Industrial, Medical, and Scientific laser applications. We maintain
the highest standards of quality and can deliver products to your
exact specifications from our Pleasanton, California location. You
are assured of the highest possible consistency and precision
every time. For more information, please contact us at
sales@newsourcetechnology.com.
Advantages
High Gain
Low Threshold
High Efficiency
Low Loss at
1.06ìm
High Optical
Quality
Good Mechanical
and Thermal
Properties
Suitable for High
Average
Power Lasers
Other laser crystals:
-CTH:YAG
-Er:YAG
-Alexandrite
-KTP
-LBO
LASER CRYSTALS
Nd:YAG
YAG Physical and Chemical Properties
Formula: Y3AI5O12
Molecular Weight: 596.7
Crystal Structure: Cubic
Moh Hardness: 8 - 8.5
Melting Point: 1950°C (3540°F)
Density: 4.55 g / cm-3
Refractive Index of YAG
Wavelength (ìm) Index n (25°C)
.8 1.8245
.9 1.8222
1.0 1.8197
1.2 1.8152
1.4 1.8121
Properties of Nd:YAG at 25°C (1.0 at % Nd)
Property Value
Formula: Y2.97Nd0.03AI5O12
Weight % Nd: 0.725
Nd Atoms / cm3: 1.38 x 1020
Wavelength: 1.064 mm
Transition: 4F3/2 —> 4I11/2
Fluorescent Lifetime: 230 ìsec
Thermal Conductivity: 0.14 W cm-1 K-1
Specific Heat: 0.59 Jg-1 K-1
Thermal Expansion: 6.9 x 10-6°C-1
dn / dt: 7.3 x 10-6°C-1
Young’s Modulus: 3.17 x 104 Kg / mm-2
Poisson Ratio: 0.25
Thermal Shock Resistance: 790 Wm-1
A) Nd concentrations offered are:
0.6 ± 0.1 at %
0.8 ± 0.1 at %
1.1 ± 0.1 at %
1.3 ± 0.1 at %
B) Wavefront distortion is determined by
use of a Zygo interferometer system.
Wavefront distortion shall be within a
maximum ë / 4 per inch of rod length
(ë = 632.8 nm) standard and ë / 16 per
inch of rod length for Premum Grade.
C) Extinction ratio 25 db minimum.
D) Dimensional / mechanical specifications:
• Diameter tolerance +.000” / -.002”
• Length tolerance +.040” / -.000”
• Rod end polished flat to ë / 10
• Rod end faces are parallel to within
10 arc seconds
• Rod end surfaces are perpendicular to
the rod axis to within 5 arc minutes
• Chamfer 0.005” ± 0.003” x 45°
• Surface Quality 10 - 5 scratch-dig per
MIL-O-13830A
• Rod barrel is fine ground to 55 ± 5
microinches (other barrel finishes
available upon request)
E) Rod end faces are anti-reflection coated
for a reflectivity of less than 0.25%.
Durability per MIL-C-48497. Total reflective
or partial reflective coatings available upon
request. Coating damage threshold
exceeds 10 J / cm2.
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