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What are the types of mobile beam splitters

Fiber and communications infrastructure knowledge brief Published 08 Jun 2023

Use this reference to prepare product questions for CJC FIBRE. Check interfaces, capacity, protection and installation requirements against the current product documentation.

Beam splitters are classified by construction, function, wavelength, and polarization, with mobile applications often using compact, lightweight, or fiber-compatible designs. Classification by ConstructionCube Beam Splitters: Made by cementing or optically contacting two right-angle prisms with a partially reflective coating on the hypotenuse. They provide equal optical path lengths for both output beams, reduce ghosting, and are suitable for interferometry.

Plate Beam Splitters: Thin, flat glass plates coated on one surface, often at 45° incidence. They are lightweight, cost-effective, and compact, but may require compensation plates to match optical path lengths. Pellicle Beam Splitters: Ultra-thin membranes (~2–5 µm) that eliminate ghosting and beam displacement.

They are fragile and typically used in low-power applications. Specialty Crystal Splitters: Wollaston or Glan-type crystals achieve very high extinction ratios (>100,000: 1) for precise polarization control. Classification by FunctionStandard Beamsplitters: Split unpolarized light at a specific reflection/transmission (R/T) ratio without regard to polarization.

Polarizing Beamsplitters: Separate light into S- and P-polarized components, essential for polarization-sensitive applications.

Non-

Polarizing Beamsplitters (NPBS): Maintain the polarization state of the incident light, useful in broadband or multi-wavelength systems.

Dichroic or Wavelength-

Based Beamsplitters: Reflect specific wavelengths while transmitting others, such as hot mirrors (reflect IR) or cold mirrors (reflect visible light). Classification by WavelengthNear UV: 200–380 nmVacuum UV: 10–200 nmExtreme UV: 1–10 nmUVA, UVB, UVC: Based on human health and environmental standards Classification by Mode and InterfaceSingle Mode: Typically 1310 nm, used in fiber-optic systemsMultimode: Typically 850 nm, for short-distance or high-power applicationsInterfaces: Common fiber interfaces include LC, FC, and SC connectors, which are relevant for mobile or portable optical systems Practical Considerations for Mobile ApplicationsMobile beam splitters prioritize compactness, low weight, and robustness.

Plate and pellicle designs are often preferred for portable setups, while fiber-compatible splitters with LC or SC interfaces are used in mobile fiber-optic networks. Selection also depends on power handling, wavelength range, and polarization requirements. This classification framework allows engineers to choose the appropriate beam splitter for mobile optical systems, laboratory setups, or field-deployable photonics applications.

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What are the types of mobile beam splitters

Beam splitter

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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