Co Spinel Passive Q-Switch Crystal
Description
Co spinel——saturable absorbers for the passive Q-switching of solid-state lasers operating at eye-safe wavelength of 1.5 μm
Cobalt-doped magnesium aluminate spinel (Co:MgAl2O4) allow the generation of short nanosecond pulse with high peak power around the eye-safe wavelength of 1.5um,perfect for telemetry applications. The absorption spectrum of Co2+-doped MgAl2O4 exhibited a broad absorption band in the wavelength range of 1200–1600 nm, which indicated that Co2+ ions substituted for the tetrahedrally coordinated Mg2+ ions in the MgAl2O4 lattice. Passive Q-switching of solid-state lasers with solid-state saturable absorbers is a very attractive Q-switching technique because it allows to develop compact and low cost laser sources of nano and sub nanosecond pulses far various applications
Lasers emitting at 1.5µm are of great interest for several industrial applications. This interest is, first of all, due to eye-safety of 1.5-µm radiation. Other advantages of this wavelength are high transparency in atmosphere and fused-silica wave guides and availability of sensitive room temperature light detectors(Ge and InGaAs photo diodes).All this makes 1.5µm lasers very attractive for applications in range-finder, environmental sensing, telecommunications, surgery,etc. Co：Spinel absorption peak is close to 1520nm,which is most used in eye-safe laser. The absorption cross-section at 1520nm is 3.5×10-19cm2 and at 1331 is 2.8×10-19cm2,it has reported as Q-switch crystal for Er,Yb Glass and Nd:GYSGG,Nd:YALO3.
Co Spinel Passive Q-Switch Crystal
Specifications |
|
|---|---|
| Type Of Crystal: | TeO2 |
| Crystal Diameter: | 6 mm |
| Crystal Length: | 6 mm |
| AR Coating: | Both sides |
| Chemical Formula: | Co2+:MgAl2O4 |
| Refractive Index: | n=1.6948 @1.54 μm |
| Thermal Conductivity/(W·cm-1·K-1@25°C): | 0.033 |
| Thermal Expansion /（10-6 /°C@25°C ）: | 1.046 |
| Concentrations: | (0.05~0.35) wt% |
| Absorption Coefficient: | 0 ～ 7 cm-1 |
| Working Wavelength: | 1200 – 1600 nm |
| Orientation: | [100] or [111] < ±0.5° |
Features
Rare excited absorption
High constant of Q-switch
High absorption section
Long excited lifetime
Evenly distributed cobalt
Wide absorption band
Applications
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
Contact Supplier
How to order?
-
Ships from:
China
-
Sold by:
-
On FindLight:
since 2019
Frequently Asked Questions
Lasers emitting at 1.5µm are of great interest for several industrial applications due to their eye-safety, high transparency in atmosphere and fused-silica wave guides, and availability of sensitive room temperature light detectors.
The applications of Co Spinel Passive Q-Switch Crystal include radar and ranging 1535nm laser, medical applications 1500nm laser, and ultra compact pulsed diode pumped laser.
The features of Co Spinel Passive Q-Switch Crystal include rare excited absorption, high constant of Q-switch, high absorption section, long excited lifetime, evenly distributed cobalt, and wide absorption band.
Co Spinel Passive Q-Switch Crystal is used for the passive Q-switching of solid-state lasers operating at eye-safe wavelength of 1.5 μm.
The absorption cross-section of Co Spinel at 1520nm is 3.5×10-19cm2 and at 1331nm is 2.8×10-19cm2.