Characteristics of Different Grades of Quartz Glass

     Performance Characteristics

 Parameter

JGS1

JGS2

JGS3

Dimension

<Φ200mm

<Φ300mm

<Φ200mm

Transmission Range (Transmittance Ratio)

0.17~2.10um(Tavg>90%)

0.26~2.10um(Tavg>85%)

0.25~3.50um(Tavg>85%)

Modulator Capacity

1200 ppm

150 ppm

5 ppm

Fluorescence (ex 254nm)

Virtually Free

Strong v-b

Strong V-B

Impurity Capacity

5 ppm

20-40 ppm

40-50 ppm

Stress-induced Birefringence

2-4 nm/cm

4-6 nm/cm

4-10 nm/cm

Fusion Method

Synthetic CVD

Oxy-hydrogen melting

Electrical melting

Application

Laser substrate: Window, lens, prism, mirror...

Semiconductor and high temperature window

IR substrate