Products and Services
Glan Laser Prisms
•Datasheet: OptoSigma Optical Components
- High power capacity: up to 500MW/cm2 pulsed
- Made from high optical quality natural calcite
- Conveniently mounted in a metal cell
- Available with two, one or no escape ports for extra power capacity
- Excellent extinction ratio of 5x10-5
Glan laser prisms are a form of calcite prism which has been adapted for high power laser use. The two prism sections are polished at an angle between the critical angles of the e and o rays for the incoming light and are air-spaced and mounted within absorbing black glass in a cell. As light enters the polarizer one polarization orientation of the beam is refracted at a different angle from the other. Thus the e-ray hits the air-spaced interface at an angle below Brewster's angle and is transmitted. The o-ray is totally reflected out of the prism into either the black glass or the escape port. Normally they are supplied in a cylindrical cell but the cell can be cut away on one or both sides to provide an exit path for the unwanted beam. The escape port type has a greater power handling capacity than the plain metal mounts because the unwanted energy can be dumped outside the cell rather than being absorbed within it. The advantage of 2 ports is that light can enter the prism from either direction.
Click Here To Download:•Datasheet: OptoSigma Optical Components
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