Cr4+:YAG – Passive Q-Switch crystals
Cr⁴⁺:YAG (chromium-doped ytterbium aluminum garnet) crystals are excellent passive Q-switch crystals for Nd and Yb-doped lasers. Passive Q-switches or saturable absorbers provide high-power laser pulses without electro-optic Q-switches, thus reducing the package size and eliminating a high-voltage power supply.
Cr⁴⁺:YAG provides chemically stable, durable, UV-resistant crystals with good thermal conductivity and a high damage threshold (>500 MW/cm²). Its absorption band extends from 800 nm to 1200 nm and peaks at around 1060nm, with a very large absorption cross-section.
Apart from Cr⁴⁺:YAG, Altechna also offers a wide range of solid-state saturable absorbers, such as Co:MALO and V³⁺:YAG ones. All these crystals can be made in line with your needs. Contact us for further information.
Typical Items for Cr4+:YAG Crystals
| Initial transmission @ 1064 nm |
Coatings, nm |
Dimensions, mm |
Product ID |
| T₀=30% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-30-05 |
|
|
5x5 |
3-CRYAG-30-55 |
| T₀=40% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-40-05 |
|
|
5x5 |
3-CRYAG-40-55 |
| T₀=50% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-50-05 |
|
|
5x5 |
3-CRYAG-50-55 |
| T₀=60% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-60-05 |
|
|
5x5 |
3-CRYAG-60-55 |
| T₀=70% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-70-05 |
|
|
5x5 |
3-CRYAG-70-55 |
| T₀=80% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-80-05 |
|
|
5x5 |
3-CRYAG-80-55 |
| T₀=85% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-85-05 |
|
|
5x5 |
3-CRYAG-85-55 |
| T₀=90% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-90-05 |
|
|
5x5 |
3-CRYAG-90-55 |
| T₀=95% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-95-05 |
|
|
5x5 |
3-CRYAG-95-55 |
| T₀=97% |
AR/AR @ 1064 |
Ø5 |
3-CRYAG-97-05 |
|
|
5x5 |
3-CRYAG-97-55 |
