M. Kihara, M. Okada, M. Hosoda, T. Iwata, Y. Yajima, M. Toyonaga, Tool for inspecting faults from incorrectly cleaved fiber ends and contaminated optical fiber connector end surfaces. Opt. Fiber Technol. 18, 470 (2012)

Recommended adapters: LC, LC-APC, LC-Duplex, SC, SC-APC, ST, FC, FC-APC, MDC, MDC-J, and SMA connectors with fiber diameter of <300 μm. Bare ferrule adapters are also available.M. Iwamatsu, M. Tabata, Y. Kurosaka, and M. Ishihara, Optical Fiber Angle Cleaver, Fujikura Tech. Rev. (2011). The quality of the obtained cleaves has different aspects, the relevance of which depends on the application:

G. Van Steenberge et al., Laser cleaving of glass fibers and glass fiber arrays. J. Light. Technol. 23, 2 (2005)Md. Abdullah AlMamuna, J. Peter Cadusch, T. Katkus, S. Juodkazis, R. Paul Stoddart, Quantifying end-face quality of cleaved fibers: Femtosecond laser versus mechanical scribing. Opt. Laser Technol. 141, 107111 (2021) Sumitomo is most well known for their consistently high-quality fusion splicers which are now considered standard equipment by many technicians and engineers in the fiber optic field. Steps of Fusion Splicing Fiber Optic Cables, URL: https://telecom.samm.com/steps-of-fusion-splicing-fiber-optic-cables. C. Paviolo, S. Jayawardhana, S. A. Wade, and P. R. Stoddart, Angle cleaving optical fibers using a CO2 laser”, In: 35th Australian Conference on Optical Fibre Technology, ACOFT 2010 ( 2010). The reliability and resulting quality is substantially better than with real mechanical cleaving, and this of course leads to substantial advantages in terms of yield and working time. That is particularly the case when polishing steps have to follow; the time spent on those (and the amount of used consumables) can be reduced due to the improved starting quality. On the other hand, a laser lever is of course substantially more expensive than a mechanical cleaver.

Furukawa Electric Co., Ltd. was founded in 1884 and since that time has played a dominant role in the growth of the global marketplace. Conversely, if the Fresnel reflection of a fiber end needs to be exploited (e.g. for building a fiber laser), it is important to keep the cleave angle small – well below the beam divergence angle corresponding to the fiber mode. Large mode area fibers are more critical in this respect. In the cleaving process, the brittle glass fiber is fractured in a controlled manner as shown below. Optimized for cutting up to 72 fibre MT and MT-APC ferrules as well as SMA connectors with larger fibre diametersWarranty: One year or 600,000 cuts, whichever comes first when cutting 12-fibre epoxied MT ferrules Select fiber cleavers according to your application requirements. Fiber cleavers, designed for fusion splicing, need a low average angle that is one degree or less, whereas cleavers appropriate for mechanical connectors require angles below three degrees. So determine whether you require a single-fiber or multi-fiber cleaver before you cleave the fibers at one time. Y. Yajima, H. Watanabe, M. Kihara, & M. Toyonaga, Optical performance of field assembly connectors using incorrectly cleaved fiber ends, In: Proceedings of the OECC2011 (2011) M. Kihara, Faults and novel countermeasures for optical fiber connections in fiber-to-the-home networks, (2013) Fiber cleaving is an important technique in the area of fiber optics. When optical fibers are connectorized, when they should be fusion-spliced or when light should be launched into fibers, the fiber ends need to be prepared such they have clean surfaces. Usually, such surfaces should be as flat as possible, at least over the area of the fiber core (sometimes over the full cross-section), and often it is important that the surface is either perpendicular to the fiber axis or has a well-defined angle against the fiber axis.

A somewhat reduced fiber tension during the cleaving process may help. Double-clad fibers with an air cladding are particularly challenging.

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A fiber cleaver utilizes an automatic anvil drop for fewer required steps and better cleaving consistency. The automated anvil design can save time and significantly improve the quality of the cleave by eliminating human error and subpar cleaves associated with scribes and manual cleavers. To perfectly cleave optical fibers, perform the following steps: The downside to these built-in cleavers is that if either the cleaver or splicer requires maintenance, the technician loses two valuable tools, which can hold up the job at hand. Note that it is often very worthwhile to carefully inspect fiber cleaves before using them, as later on it may be much more tedious to locate a fault. Even with a mechanical precision cleaver, the results may not be fully reliable because they require correct settings and can be spoiled by a defect blade, which is not easy to recognize. Additional Treatment: Polishing optical fibre type, the blade condition or the operating environment may affect the cleaving angle. Since the measuring device has been changed from an interference microscope to a fusion splicer, this specification value is now higher than that of the previous model (CT-30). The scribe or manual cleaver, which is cheaper than the precision cleaver, is the most original type of fiber optic cleaver. Scribe cleavers are usually shaped like ballpoint pens with diamond tipped wedges or come in the form of tile squares. The scribe has a hard and sharp tip, generally made of carbide or diamond, to scratch the fiber manually. Then the operator pulls the fiber to break it. Since the breaking process is under manual control, it is hard to control the force, which makes the cleaving less accurate and precise. That’s why most technicians shy away from these cheap cleavers. Precision Cleavers