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Thorlabs TM105R3F2B 2x2 Multimode Fiber Optic Coupler, Low-OH, 105 µm Core, 0.22 NA, 75:25 Split, FC/PC

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Product Type
Couplers/Splitters
Connector Type
FC/PC
All 4 specifications
  • Ships to NL
  • Response within 1 hour
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Specifications 4

Brands
Thorlabs
New/Used
Used
Product Type
Couplers/Splitters
Connector Type
FC/PC

Product description

2x2 multimode fiber optic coupler with 105 µm core, 0.22 NA, 75:25 split, and four FC/PC ports.

The Thorlabs TM105R3F2B is a 2x2 multimode fiber optic coupler designed to distribute optical signals between four fiber ports. It features a 105 µm core, 0.22 numerical aperture (NA), and an asymmetric 75:25 split ratio for defined power distribution between outputs.

  • Fiber type: Low-OH multimode fiber
  • Core diameter: 105 µm
  • Numerical aperture: 0.22 NA
  • Split ratio: 75:25
  • Connector type: FC/PC on all four ports
  • Configuration: 2x2 fiber optic coupler
  • Optical range: Optimized for visible and near-infrared applications
  • Condition: Good used condition; fully functional

This fiber optic coupler is suitable for fiber-optic measurement systems, interferometry, optical signal distribution, spectroscopy, and biomedical instrumentation. Its multimode architecture and FC/PC connectivity support integration into laboratory optical setups and research systems requiring controlled signal splitting.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 3 November 2026