Five-axis fiber-coupled optical component mount BFT4-5C

The LBTEK BFT4-5C and BFT4-1P four-axis adjustment mounts are designed for fiber coupling systems. The BFT4-5C is used to mount 5 mm edge-length cubes, such as polarizing or non-polarizing beam splitter cubes, while the BFT4-1P is designed for mounting flat optical components with a width of 12.7 mm and a thickness of 1 mm, such as beam splitters or mirrors. A dot is marked at the 0-90° midpoint for installing beam-splitting optical elements, ensuring that the coated surface of the splitter faces this dot. This alignment allows the incident beam to be centered on the mount for optimal beam splitting. Both mounts utilize UV adhesive for installation. These adjustment mounts enable precise beam alignment and directional control through pitch, tilt, and rotation adjustments. Three threaded mechanisms control the pitch/tilt and rotation of the mount, providing a maximum adjustment range of ±3°. The rotation direction allows for 360° coarse adjustment, with 5° incremental markings and a differential scale precision of 1°. After locking the fine-adjustment screws on the side, the top threaded mechanism enables ±12° fine adjustment at approximately 2° per turn. Additionally, when all three vertical threaded mechanisms are rotated equally, they provide ±1 mm vertical adjustment. All threaded mechanisms, including the fine-adjustment locking screws, use a 1.3 mm hex key, which is included with each mount. Furthermore, a spanner wrench is provided to secure the threaded mechanisms and prevent accidental movement. One of each tool is included.

• 360° coarse adjustment, with markings every 90°
• 5° per division of main scale accuracy
• ±12° adjustment for fine adjustment screw pair, approximately 2° per full rotation
• Differential reading accuracy of 1°