Product Description

For fiber coupling and alignment systems requiring 360° continuous rotation
Accommodates bare fiber with Ø125 µm outer cladding(buffer stripped)
Easy-load V-groove design
Magnetic clamping force on the arm
Compatible with Nano series flexure stages

Bare fiber rotators are ideal for angle-sensitive optical setups such as polarizationdependent experiments and coupling optimization.

Item	Specification
Model	FH-FR
Dimensions	58.6 × 25.8 × 31.5 mm
Adjustment Range	360° continuous rotation with lock
Optical Axis Height	12.5 mm
Eccentricity	10 μm
Clamping Diameter	Ø125 μm bare fiber (buffer removed)
Weight	61.1 g
Material	7075 Aluminum Alloy

Technical Notes

The bare fiber rotator is designed for angle-sensitive systems including polarization experiments and coupling optimization. It enables 360° continuous rotation of the fiber around its core center with max eccentricity 10 µm across the full range, ensuring precise alignment with couplers, polarizers, and other components.

It holds Ø125 µm bare fiber (buffer stripped) via a V-groove and strong magnetic clamp arm. A top set screw allows adjustable clamping force to minimize stress-induced fiber birefringence.

The base features a 3 mm wide keyway compatible with multi-axis flexure stages and fiber adapter plates. When mounted on a flexure stage top plate, the optical axis height is 12.5 mm. The keyway ensures accurate reinstallation alignment after removal.