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Beamsplitters are essential optical components that split incident light into two beams at a designated ratio or combine two beams into one. Andover Corporation's precision-engineered beamsplitters are available in multiple types to meet the needs of diverse optical systems.
Beamsplitter Basics
Beamsplitters divide light based on a specified reflection/transmission (R/T) ratio or by specific properties like polarization or wavelength. They are primarily classified into cube beamsplitters and plate beamsplitters, each designed for different optical applications.
Understanding beamsplitter configurations and applications.
Types of Beamsplitters
- Standard Beamsplitters: Designed for unpolarized light sources where polarization state is not critical. They split light at a specific R/T ratio with no polarization preference.
- Polarizing Beamsplitters: Split light into reflected S-polarized and transmitted P-polarized beams. Ideal for polarization separation and optical isolation.
- Non-Polarizing Beamsplitters: Maintain the polarization state of incident light while splitting it into a specific R/T ratio. Perfect for systems that utilize polarized light, such as lasers.
- Dichroic Beamsplitters: Split light by wavelength. Examples include laser beam combiners and broadband mirrors for visible and infrared light. Commonly used in fluorescence applications.
- Cube Beamsplitters: Constructed with two right-angle prisms, cemented together with a coated hypotenuse surface. Light typically enters through the coated prism to prevent damage to the cemented interface.
- Plate Beamsplitters: Thin, flat glass plates with a coated first surface. Anti-reflection coatings on the second surface minimize unwanted reflections. These are typically optimized for a 45° angle of incidence (AOI).
Why Choose Andover Corporation for Beamsplitters?
- Custom Coatings: Antireflective, dielectric, and hybrid coatings tailored for your application.
- High-Precision Manufacturing: Superior performance and durability under demanding conditions.
- Vertically Integrated Processes: In-house design, coating, and metrology ensure consistent quality and shorter lead times.
Applications of Beamsplitters
- Aerospace and Defense: Optical components for targeting, imaging, and reconnaissance systems.
- Laser Systems: High-energy laser alignment and precision splitting.
- Medical Devices: Diagnostic optics for endoscopy, microscopy, and imaging systems.
- Industrial and Scientific: Applications in spectroscopy, machine vision, and metrology.
With almost 50 years of experience, Andover Corporation delivers precision-engineered beamsplitters that meet the stringent requirements of today’s advanced optical systems. Whether you need standard or custom solutions, we ensure superior performance and unmatched reliability.
Contact us today to discuss your beamsplitter needs or to request a customized solution.
Frequently Asked Questions about Beamsplitters
What are beamsplitters used for?
Beamsplitters divide or combine light beams in imaging, spectroscopy, laser alignment, and other optical applications.
What is the difference between cube and plate beamsplitters?
Cube beamsplitters use two prisms cemented together with a coated hypotenuse, while plate beamsplitters are flat glass plates with a coated surface and anti-reflective treatments.
What coatings are available for beamsplitters?
Andover offers antireflective, dielectric, and hybrid coatings to meet a wide range of optical requirements.
