From€220excl. VAT
In stock
Can't find what you're looking for?
2x2 multimode fiber optic coupler with 105 µm core, 0.22 NA, 75:25 split ratio, FC/PC interface for fiber optics
The Thorlabs TM105R3F2B is a precision 2x2 multimode fiber optic coupler designed with a 105 µm core diameter and a numerical aperture (NA) of 0.22. Featuring a low hydroxyl (Low OH) fiber composition, it supports efficient light transmission and minimal attenuation in fiber optic setups. The device provides a 75:25 split ratio, enabling controlled division of optical signals, essential for applications in biotechnology research, molecular diagnostics, and biophotonic instrumentation. Equipped with FC/PC connectors, it ensures stable and repeatable connections for integration into complex optical fiber networks used in bioprocessing, synthetic biology experiments, and fluorescence analysis workflows. This coupler is well-suited for deployment in fiber optic sensing, live-cell imaging systems, and telecommunications where precise optical signal management is critical. Widely adopted in biomedical engineering and neuroimaging platforms, the TM105R3F2B supports advanced research requiring reliable fiber optic coupling with minimal signal loss.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 3 November 2026
€220 sits in the middle range fiber optics here. The middle half of the 78 with a price runs from €179 to €973.
2 other listings of this model are available.
