Fiber Optical Sensor
Fiber Optic Temperature Sensor
The FOTS fiber optic temperature sensor probes deliver industry-leading accuracy, repeatability, and reliability across diverse applications. Based on the intrinsic temperature-dependent quantum effects of bandgap materials, the FOTS sensor features a compact sensing crystal at the fiber tip, ideal for tip measurement applications. Immune to RF interference, these probes enable precise temperature monitoring in extreme environments. They are easy to install, robust, and available with customized designs upon request, tailored for OEM applications. When paired with the SMNT readout unit, the FOTS sensor provides exceptional repeatability and reliability even in challenging conditions, including high EM, RF, MR, and microwave field environments. The standard operating range spans from -40 °C to +300 °C.

Configuration options
Build & quote
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
Part number: FOTS-111ST01111
Package: A · Fiber Cover: 0.9mm tube · Fiber Length: 1m · Connector: ST · Readout: Single Channel · Temperature: 40 to 250°C
System integration
Integration and compatibility
Use these checks to connect Fiber Optic Temperature Sensor to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Optical interface and fiber
- Fiber Cover: 0.9mm tube, 3mm tube, Bare fiber 0.125mm, Polyimide fiber 0.125mm, 2.8mm peek · Fiber Length: 1m, 2m, 5m
- Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Technical FAQ
Integration questions for Fiber Optic Temperature Sensor
Which fiber and connector does the Fiber Optic Temperature Sensor use?
Fiber Cover: 0.9mm tube, 3mm tube, Bare fiber 0.125mm, Polyimide fiber 0.125mm, 2.8mm peek · Fiber Length: 1m, 2m, 5m. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
Need this configured?
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Nearby series comparison
Compare Fiber Optic Temperature Sensor with the closest available models in the Fiber Optical Sensor family.
| Selection parameter | Fiber Optic Temperature Sensor (current) | Fiber Optic Tip Pressure Sensor | Fiber Optical Electric Field Sensor Head |
|---|---|---|---|
| Connector / control | ST, SC, FC | SC, FC | FC/APC |




