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Parallel Windows are similar to Plane Windows,
but with parallel surfaces. These windows are well suited for applications in which angular deviation of the transmitted beam must
be kept as small as possible. Misalignment errors are also minimized when the window is repeatedly inserted and
removed.
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Last Updated ( Monday, 07 May 2007 )
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Large Wedge Windows greatly reduce or eliminate
interference effects caused by multiple reflections between front and rear surfaces of plane windows. They are well suited for use
as substrates for laser output couplers in which the reflection from
the second surface must be completely eliminated from the gain medium
of very sensitive lasers. A pair of identical wedges are used to create
an adjustable beam steering device.
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Last Updated ( Friday, 27 April 2007 )
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Narrowband Anti-Reflection coatings, often
referred to as "V" coatings, reduce surface reflectance to
less than 0.5% at the specified center wavelength and normal incidence.
These all dielectric coatings are sensitive to polarization, wavelength
and angle of incidence. They are durable and highly resistant to laser
damage.
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Last Updated ( Monday, 07 May 2007 )
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Read more...
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Large Wedge Windows greatly reduce or eliminate
interference effects caused by multiple reflections between front and
rear surfaces of plane windows. They are well suited for use as substrates
for laser output couplers in which the reflection from the second surface
must be completely eliminated from the gain medium of very sensitive
lasers. A pair of identical wedges are used to create an adjustable
beam steering device.
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Last Updated ( Friday, 27 April 2007 )
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Read more...
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Brewster Windows are primarily used in laser
cavities to produce a beam with a high degree of polarization purity.
When unpolarized light is incident on an uncoated substrate at Brewster’s
Angle, the reflected portion is completely S polarized and the transmitted
portion is partially P polarized. Multiple passes through the substrate
substantially reduces the S component in the transmitted beam, resulting
in a highly P polarized output. Multi-layer Thin Film Polarizer coatings can be applied to these
substrates to greatly improve efficiency and extinction ratio on a single
pass through the substrate.
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Last Updated ( Friday, 27 April 2007 )
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Read more...
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