|
Crystal properties |
|
|
Chemical Formula |
Cr:Mg2SiO4 |
|
Concentration |
~3 – 6 x 1018 cm³ |
|
Melting Point |
1890 °C |
|
Density |
3.22 g/cm³ |
|
Hardness (Mohs) |
7 |
|
Thermal Expansion Coefficient |
9.5 x 10-6 |
|
Thermal Conductivity |
8 W /m /K (300 K) |
|
Stimulated Emission Cross Section |
1.44 x 10-19 cm-2 |
|
Relaxation Time of Terminal Lasing Level |
<10 ps |
|
Dadiative Lifetime |
25 ms |
|
Spontaneous Fluorescence |
2.7 ms |
|
Loss Coefficient |
0.02 cm-1 |
|
Refractive Index |
1.635 |
|
Spectroscopic and Laser Properties |
|
|
Major Pumping Bands |
850 – 1200 nm |
|
600 – 850 nm |
|
|
350 – 550 nm |
|
|
Fluorescence Band |
680 – 1400 nm |
|
Room-temperature Fluorescence Lifetinme |
~ 3 ms |
|
Lasing Wavelenght (center) |
1235 nm (pulsed) |
|
Spectral Bandwith |
30 nm (pulsed) |
|
Typical Slope Efficiency |
23 % (pulsed) |
|
Tuning Range |
1167 – 1345 nm |
|
Gain Cross Section |
~ 1.45 x 10-19 cm² |
