Fiber Probes for Optical Delivery and Sensing

Did You Know?

Fiber probes are a an optomechanical component that attach to an optical fiber to allow probing and analyzing various samples, or monitoring real-time kinetic reactions, sampling in vivo, and any other application where it is difficult to bring the sample to the analyzing device such as a spectrometer. They are widely used in a range of applications, including sensing, spectroscopy, and imaging of biological organisms. A fiber probe typically consists of a tapered single-mode or multimode optical fiber, which is designed to efficiently couple light into and out of the fiber. The probe may also include specialized lenses or apertures to focus or direct the light. Fiber probes offer several advantages over traditional optical measurement techniques, including high sensitivity, real-time measurements, and non-destructive testing. They are also compact, lightweight, and easy to use, making them ideal for portable and remote sensing applications. Choosing the right fiber probe for a specific application requires careful consideration of several factors, including the type of measurement, the wavelength of light, the numerical aperture of the fiber, and the size and shape of the sample. Proper maintenance and cleaning of fiber probes is also essential to ensure accurate and reliable measurements. Check out the selection of Fiber Probes in this category and contact the experts with your questions from the individual product pages.
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Frequently Asked Questions

A Fiber optic probe is an an optomechanical component that attaches to an optical fiber to allow probing and analyzing various samples, or monitoring real-time kinetic reactions, sampling in vivo, and any other application where it is difficult to bring the sample to the analyzing device such as a spectrometer.

Fiber Probes for Controlled Light Transport

Fiber Probes are optomechanical assemblies that terminate one or more optical fibers into a mechanically stable probe head. They are used for controlled light transport in measurement, diagnostics, and illumination setups where free-space optics are impractical or space-constrained. Typical Fiber Probes integrate single-mode, multimode, or polarization-maintaining fibers with ferrules, protective housings, and optional optics such as GRIN lenses or micro-objectives.

Key Specifications and Configurations

On FindLight you will find Fiber Probes configured for reflection, transmission, and fluorescence measurements, as well as general light delivery. When comparing products, consider the following parameters:

  • Fiber type and core size: Single-mode Fiber Probes for diffraction-limited delivery; multimode for higher power and collection efficiency; PM fibers for polarization-sensitive measurements.
  • Wavelength range: Probe designs optimized for UV, visible, NIR, or telecom bands, dictated by fiber coating, numerical aperture, and internal optics.
  • Numerical aperture (NA): Determines acceptance angle and coupling efficiency to samples or external optics.
  • Connector and termination: FC/PC, FC/APC, SMA, or custom connectors at the backend; probe tip styles including bare fiber, ferrule, or lensed Fiber Probes.
  • Housing and form factor: Rigid stainless-steel needles, ruggedized sheathing, or miniature probes for in-situ and endoscopic access.
  • Power handling and damage threshold: Critical for Fiber Probes used in high-power laser delivery or photothermal applications.

Typical Applications of Fiber Probes

Fiber Probes are used in spectroscopy (Raman, fluorescence, reflection), biomedical sensing, process monitoring, and fiber-delivered laser illumination. They enable precise sampling in confined volumes, integration into flow cells or reaction chambers, and stable alignment in OEM instrumentation.

Buyer Guidance on FindLight

Use FindLight to compare Fiber Probes across multiple vendors by wavelength range, fiber type, NA, connector style, and mechanical dimensions. Evaluate datasheets for optical throughput, spot size at working distance, and environmental ratings (temperature, sterilizability, IP protection) relevant to your setup. For pricing, custom modifications, or integration questions, request quotes directly from suppliers; no registration is required to submit RFQs. This allows you to rapidly shortlist Fiber Probes that meet your light transport, sensing, or illumination requirements and proceed to technical evaluation with the manufacturers.