Deeply rooted in the field of optical fiber end-face processing, how does VAEYI create a full-scenario cutting solution for 80-600μm?

Fiber optic end-face treatment: Why a "one-size-fits-all" approach doesn't work.

In optical fiber processing and splicing, the quality of end-face dicing is a critical preliminary step that determines subsequent splicing loss, coupling efficiency, and device reliability. For conventional 125μm cladding communication fibers, dicing technology is very mature, and controlling the dicing angle within 0.5° is not difficult. However, when the fiber cladding diameter expands to 200μm, 400μm, or even 600μm, the challenges faced by the dicing process increase non-linearly.

In simple terms, the thicker the optical fiber, the longer the path of the crack propagating from the blade's mark to the other side during cutting, and the higher the probability of encountering material defects and internal stress fluctuations along the way. Different types of optical fibers—quartz fiber, active fiber, and microstructure fiber—have different mechanical properties and fracture characteristics. This means that a truly effective large-core cleaver cannot use a single set of parameters to "catch" all optical fibers, but must provide differentiated cutting solutions for different diameters and materials.

FCM-400+ coverage range: from 80μm to 600μm

FCM-400+ is VAEYI's core product in the field of large-core fiber dicing, with a cladding diameter range of 80–600 μm and a coating diameter range of 160–3000 μm. This range basically covers the large-core fiber specifications commonly used in current fiber laser manufacturing, fiber sensor manufacturing, and scientific research experiments.

Regarding the types of optical fibers that can be used, the FCM-400+ explicitly supports four types of materials:

· Quartz optical fiber : the most common fiber matrix for communication and power transmission, with relatively mature cutting technology.

· Active fiber : Rare earth element-doped gain fiber is the core material of fiber lasers, and its core doped region is particularly sensitive to end-face defects.

· Microstructured optical fibers , including photonic crystal fibers, have periodic air hole structures inside. During cutting, it is necessary to avoid the collapse or deformation of the hole structure.

· Quartz tube : Quartz sleeves used in certain special coupling and encapsulation scenarios, which have certain requirements for the flatness of the cut.

The significance of covering multiple fiber types is that users do not need to configure separate cutting equipment for different fiber materials; a single FCM-400+ can complete multiple end-face fabrication tasks.

Five cutting modes: Parameter matching is a prerequisite for quality.

The FCM-400+ features five cutting levels: 200/300/400/500/600μm. The technical logic behind this segmented design is that within each diameter range, parameters such as blade scratch depth, cutting pull force, and feed speed can be optimized for the optical fiber's mechanical properties, rather than using a single set of compromise parameters to cover the entire diameter range.

The intelligent cutting program automatically optimizes the number of cuts based on the selected setting. Here, "number of cuts" refers to the cumulative count of effective cuts made by the blade on the same working surface. The system combines blade wear patterns and the current cutting mode to provide prompts for blade position adjustment or replacement. This automated management reduces reliance on operator experience and helps maintain stable and consistent cutting quality in mass production.

Cutting angle performance under different diameters

The cutting angle is a direct indicator of end-face quality. Typical cutting angles for the FCM-400+ at different diameters are as follows:

The data shows that the average cutting angle increases with the increase in fiber diameter, which is consistent with the physical law that crack propagation paths are longer and more difficult to control in large-core-diameter fibers. Even so, a cutting angle of 0.4° (400μm) is still at a good level in the field of large-core-diameter cutting and can meet the requirements of most fiber splicing and coupling processes.

Fixtures and cutting tools: the two major hardware supports for end face quality

Besides parameter matching, hardware configuration also determines the reliability of the cutting solution. The FCM-400+ features targeted designs in its two core components: the clamp and the blade.

ZrO₂ ceramic fiber optic clamps : The high hardness and wear resistance of zirconia ceramics ensure precise positioning of the fiber during the dicing process. For microstructured fibers, which are sensitive to clamping pressure, the smooth surface and burr-free nature of the ceramic clamps help reduce clamping damage. The wide clamping range of 160–3000 μm coating diameter also allows for direct handling of fibers of different specifications without changing the clamps.

20-Station Blade : The blade is designed with 20 working surfaces, each with a lifespan of approximately 10,000 cycles, for a total of approximately 200,000 cycles. Combined with the intelligent cutting program's automatic counting and prompts, users can switch stations in time before blade wear affects cutting quality, avoiding the generation of batches of defective products.

From the lab to the production line: Usage logic covering all scenarios

With a coverage area of 80–600μm and five cutting modes, the FCM-400+ can be adapted to a variety of usage scenarios:

· Fiber laser production line : End face preparation of active optical fibers is a pre-process for pump coupling and fusion splicing. A stable cutting angle directly affects the coupling efficiency and laser output power.

· Fiber optic sensor manufacturing : Microstructured optical fibers and special optical fibers are increasingly used in the field of sensing. The end-face processing of these optical fibers requires equipment that can adapt to non-uniform structures.

· University/Research Laboratory : Research projects involve a wide variety of optical fibers with frequent changes in specifications. A cleaver with a wide coverage and easy operation can significantly improve experimental efficiency.

With its compact size of 160×100×113mm, weight of 1.95kg, and lithium battery power, the FCM-400+ can be used for extended periods at a fixed workstation, or easily moved between different lab benches and production line sections. VAEYI also provides a lifetime warranty on the entire machine, further reducing the long-term risks for users.