Er3+, Yb3+ co-doped phosphate glass is a well-known and commonly used active medium for lasers emitting in the “eye-safe” spectral range of 1,5-1,6 µm.
As an eye-safe wavelength laser, 1540um ,Er3+/Yb3+ co-doped phosphate glass lasers have attracted much attention for their compactness and low cost, such as laser generation and signal amplification because the wavelength of 1540nm is just at the position of the eye-safe and the fiber optic communication window. 1540nm lasers have used in ranging finder, radar, target recognition. Er3+/Yb3+ co-doped phosphate glass cooperate with passive Q-Switch crystal cospinel can get 1540nm pulse solid-state laser.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeksDescriptions:
Er3+, Yb3+ co-doped phosphate glass is a well-known and commonly used active medium for lasers emitting in the “eye-safe” spectral range of 1,5-1,6 µm.
As an eye-safe wavelength laser, 1540nm lasers have used in ranging finder, radar, target recognition. Er3+/Yb3+ co-doped phosphate glass cooperate with passive Q-Switch crystal cospinel can get 1540nm pulse solid-state laser.
Optical and laser properties of Er:Yb:glass
Cross section for stimulated emission (10-20cm2) |
0.8 |
Fluorescent lifetime (ms) |
7.7-8.0 |
Center lasing wavelength (nm) |
1535 |
Refractive index (1535nm) |
1.524 |
Refractive index (d 589.3nm) |
1.532 |
Abbe value |
66 |
dn/dT (10-6/℃) (20~100℃) |
-1.72 |
Transformation temp. (℃) |
556 |
Softening temp. (℃) |
605 |
Coeff.of linear thermal expansion (10-7/K) (20~100℃) |
87 |
Coeff.of linear thermal expansion (10-7/K) (100~300℃) |
95 |
Thermal Coeff.of optical path length (10-6/K) (20~100℃) |
2.9 |
Thermal conductivity (25℃) (W/mK) |
0.7 |
Density (g/cm3) |
3.06 |
Chemical durability |
52 |
HGO offers Er:Yb:glass specifications:
|
|
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% |
Wavefront Distortion: |
λ/4 per inch @ 632.8 nm |
Surface Flatness: |
< λ/8 @ 632.8 nm |
Chamfer: |
< 0.1 mm @ 45o |
Barrel Finish |
50-80 micro-inch (RMS) , |
Size |
Upon customer request |
Coating |
AR/HR oating upon customer’s request |
Damage Threshold |
750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |
Quality Warranty Period |
One year under proper use |
Advantages:
1) Wide absorption band
2) Long fluorescence lifetime
3) High optical quality
4) Safety for eye
5) High slope efficiency
Why Choose HGO?
HG OPTRONICS.,INC. supplies very high quality of Er3+/Yb3+ co-doped phosphate glass for eye safe lasers. Not only seperate kits but also bonding kits with cospinel q-switch. Also other related high laser induced damage threshold cavity lens and mirrors for the eye safe lasers is also available from stock.