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Optical glass for fibre optics |
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B series glass Optical glass B series is intended for fibre-optics elements fabrication operating in visible spectrum. Glass B series is characterized by coefficient of linear thermal expansion alpha(20-300oС), refractive index nе or spectral attenuation coefficient.  B series glass | glass grade and designation | glass type | coefficient of thermal linear expansion | refractive index | | ne | nd | BC
colorless core | BC 82 | 82 | 1.7609 | 1.7545 | | BC 83 | 83 | 1.6143 | 1.6111 | | BC 92 | 92 | 1.5893 | 1.5859 | BO
colorless shell | BO 50 | 50 | 1.4838 | - | | BO 54 | 54 | 1.4898 | 1.4881 | | BO 73-1 | 73 | 1.5150 | 1.5131 | | BO 77 | 77 | 1.5163 | 1.5144 | | glass grade and designation | glass type | coefficient of thermal linear expansion | spectral coefficient µ540 (mm-1) | BTO
dark (absorbing) shell | BTO 73 | 73 | 1.90 | Optical glass B series is supplied in form of cut parts, tubes, stripes, blocks and in form of slabs, plates and bars. This glass blanks forms, dimensions and surface quality can be agreed additionally in accordance with specific order. More detailed information about optical glass for fibre optics (glass B series) is submitted as per response.
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PRODUCTION 
