Wedged windows (Optical Wedges, Wedge Prisms)
Wedged windows are optical windows with non-parallel surfaces. This feature is designed specifically to minimize back reflection and interference impact to optical system. Choose size, shape and wedge angle for your application.
Estimated Shipping Date: August 30, 2024 - September 10, 2024
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- Description
- Applications
Wedge Windows: Description and function
What is the angle of a wedge (wedge angle) ?
The angle between two main substrate surfaces, causing light passing through to deviate slightly is called wedge angle. It is typically very small and is used for applications such as beam steering, optical isolation, and interference control. Calculated using the difference in thickness over a given distance, precise control of the wedge angle is crucial for accurate optical performance.
Wedged substrates for laser optics
Wedges reduce ghost reflections and interference, when used as substrates for partial reflectors (cavity output couplers) as the reflection from back surface is reflected in slightly different direction. In other close-to-normal incidence angle beamsplitters (e.g dichroic mirrors), the wedged backsurface helps in similar way.
Wedged Windows for telescopes, lasers, sensors and other applications
Wedged Windows for astronomical telescopes
Chromatic aberration in telescopes can be corrected by slightly diverging light paths using Alien Photonics wedged windows (optical wedges). This elimination improves image clarity, color accuracy in telescopes and astrophotography cameras.
Optical wedges for beam steering devices
Wedged windows redirect laser beams in beam steering systems. This leads to accurate alignment and positioning.
Wedged windows for imaging sensors
By adjusting the angle of incoming light, wedged windows (optical wedges) correct parallax errors and improve image alignment in imaging and observation devices.
Wedged windows for laser rangefinders and target designators
In rangefinders, Alien Photonics wedged windows subtly steer the laser beam to account for optical parallax. This enhances distance measurement accuracy in military and surveillance applications.
Wedged windows (optical wedges) for Nd:YAG, Yb:YAG, Ti:Sapphire and other lasers
Wedged windows (optical wedges) with carefully chosen wedge angles can be employed in solid state, fiber and other lasers to manage beam direction and protect other laser components.
Wedge pairs for dispersion compensation
A pair of optical wedges can be used to compensate for dispersion by introducing wavelength-dependent refraction that counteracts undesired dispersion effects in optical systems. By adjusting the orientation and position of Alien Photonics wedges, precise control over dispersion is achieved.