Active Member
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[China]
Address: No.200, Zgaoxian Road, Jiading Zone, Shanghai, China
Contact name:sales
Nanjing Crylink Photonics Co.,Ltd |
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SFG10 silicate glass has high UV cutoff and infrared cut-off capability, it can be used as a laser cavity materials to absorb one micron and unwanted UV and IR radiation in high energy laser systems with high repetition rates
| UV Cutoff (5mm,2% transmission) (nm) | 350 |
| IR Cutoff (nm) | 2500 |
| Refractive Index (d 589.3nm) | 1.563 |
| Refractive Index (1053nm) | 1.57 |
| Abbe Value | 56.6 |
| Transformation Temp. (℃) | 490 |
| Softening Temp. (℃) | 540 |
| Coeff.of Linear Thermal Expansion (10-7 /K) (30~100℃) | 87 |
| Coeff.of Linear Thermal Expansion (10-7 /K) (30~300℃) | 100 |
| Thermal Conductivity (25 ℃) (W/mK) | 1.1 |
| Density (g/cm3 ) | 2.87 |
| Dw(H2O 98℃) (mg/(cm2/day)) | 0.109 |
Diffuse-reflection Pumping Cavity
Two key technologies have been used in the pumping cavity. Firstly,
SFG-silicate glass is used as a filter to prevent the color centers
and reduce the thermal effects in the laser medium. Moreover,
SFG-silicate glass
has a strong absorption at the emission peak of Nd3+, which is
helpful to reduce the radial ASE and increase the stored energy in
gain medium. Secondly, the reflector is diffuse type. By optimizing
the pumping structure, uniform pumping distribution and high
pumping efficiency are achieved, which is very important for good
beam quality. This kind of pumping cavity is a perfect choice for
high-energy laser system with high repetition.
| Pumping distribution on the cross section of laser rod in a four-lamp pumped cavity |
| The laser cavity for Nd3+:YAG rod | Laser gain with and without glass filter (18mm Nd3+:YAG rod) |
