| Parameter|Value | JGS1 | JGS2 | JGS3 |
| Maximum Size | <Φ200mm | <Φ300mm | <Φ200mm |
| Transmission Range (Medium transmission ratio) | 0.17~2.10um (Tavg>90%) | 0.26~2.10um (Tavg>85%) | 0.185~3.50um (Tavg>85%) |
| Fluorescence (ex 254nm) | Virtually Free | Strong v-b | Strong V-B |
| Melting Method | Synthetic CVD | Oxy-hydrogen melting | Electrical melting |
| Applications | Laser substrate: Window, lens, prism, mirror… | Semiconductor and high temperature window | IR & UV substrate |