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Nd: YAG Laser Crystals

Nd:YAG is the most renowned and earliest laser host crystal, it has extensive applications in industry, medicine, military and science. Nd:YAG crystals are widely utilized in various types of solid-state laser systems, including frequency-doubled continuous wave and high-energy Q-switched lasers. The excellent fluorescent lifetime, thermal conductivity and physical strength of the material render it suitable for high-power lamp-pumped lasers.


OST Photonics provides standard Nd:YAG rods with AR coating at 1064nm, as well as customized rods or crystals tailored to meet the specific needs of our customers. Additionally, Nd:YAG transparent ceramics are available with a maximum doping concentration of 20%, if you have an interest in our Nd:YAG transparent ceramics, please do not hesitate to contact us.

Applications of Nd YAG Laser Crystals


  • industrial

  • medical

  • military

  • scientific fields


Advantages of Nd YAG Laser Crystals


  • High gain, High efficiency, Low threshold, Low loss at 1.06 µm

  • Good thermal conductivity and thermal shock characteristics

  • Mechanical strength, High optical quality

  • Various modes of operation (CW, pulsed, Q-switched, mode-locked)


Specifications of Nd YAG Laser Crystals


Doping(atm%):

0.1% ~ 2.5%

Orientation:

<111>,<100>,<110>crystalline direction

Wavefront Distortion:

λ/10 per inch @ 632.8 nm

Dimension Tolerances:

rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm

Surface Quality:

10/5 Scratch/Dig MIL-O-1380A

Parallelism:

< 10″

Perpendicularity:

< 5′

Clear Aperture:

> 90%

Surface Flatness:

< λ/10 @ 632.8 nm

Chamfer:

< 0.1 mm @ 45o

Barrel Finish

50-80 micro-inch (RMS),

Size

Upon customer request

Coating

AR/HR/PR coating upon customer’s request

Damage Threshold

750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz

Quality Warranty Period

One year under proper use

Slabs, thread rod, Er: YAG, Yb: YAG, Cr: YAG, Ce: YAG, Tm: YAG, Ho: YAG, and other ion-doped YAG crystals are also available upon request.


Properties of Nd YAG Laser Crystals


Chemical Formula:

Nd: Y3Al5O12

Crystal Structure:

Cubic

Lattice Constant:

12.01Å

Melting Point:

1970°C

Density:

4.5g/cm3

Refractive Index

1.82

Thermal Expansion Coefficient:

7.8x10-6 /K<111>

Thermal Conductivity(w/m/k):

14, 20℃
10.5, 100℃

Mohs Hardness:

8.5

Stimulated Emission Cross-Section:

2.8x10-19 cm-2

Relaxation Time of Terminal Lasing Level:

30ns

Radiative Lifetime:

550 us

Spontaneous Fluorescence:

230 us

Linewidth:

0.6nm

Pump Wavelength:

807.5nm

Polarized Emission:

Unpolarized

Thermal Birefringence

High

Pump Wavelength Absorption Band:

1nm

Loss Coefficient:

0.003cm-1@1064nm


Contact Us
Welcome your presence, you can send us an email, we will get in touch with you within 24 hours.
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
sales@ostphotonics.com; info@ostphotonics.com +86-0571-86780460