Multimode Step-Index Optical Fibers on OFS, Specialty Photonics Division


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	Multimode Step-Index Optical Fibers
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		HCS® Low OH High Numerical Aperture 0.43 NA Fibers (2) High NA fiber captures more input power with very low bend-induced attenuation, high coupling efficiency. Part of the HCS fiber family, these fibers are compatible with crimp and cleave termination.




		HCS® Low OH 0.37 NA Fibers (8) These fibers are ideally suited for use with both 650 and 850 nm active devices. For medical applications, they are USP Class VI non toxic, biocompatible and sterilizable. Part of the HCS fiber family, the 200 and 400 µm sized fibers are compatible with crimp and cleave termination.




		HCS® High OH 0.37 NA Fibers (5) For coupling to LED and laser sources, these larger core diameter fibers connect more efficiently and less expensively than single-mode or graded-index fibers. For medical applications, they are USP Class VI non toxic, biocompatible, and sterilizable. Part of the HCS fiber family, the 200 and 400 µm sized fibers are compatible with crimp and cleave termination.




		UltraSil® Fiber 0.29 NA Fibers (4) The high-numerical aperture low-OH content of these fibers result in a large usage window. Low OH concentration is especially effective for using these fibers in near-IR spectroscopy applications. For laser delivery, HCS® fiber coating preserves cladding modes through bends and distributes lost power over a greater area—lowering the probability of “hot spots.” For high-temperature performance, we recommend PYROCOAT® polyimide coating. This coating also strips cladding modes for enhanced performance in sensing and spectroscopy applications.




		HCXtreme™ Fibers for High Power In Tight Bends (5) HCXtreme Fiber coating technology solves the problem of fiber failure due to excessive bending of optical fiber under power. In testing down to 2.5 mm radius bend, HCXtreme fibers continued to transmit power without breakage. Actual performance in any given application should be validated by customer testing. For further details and testing methodology, request our white paper, entitled "Study of Optical Fiber Damage Under Tight Bend with High Optical Power at 2140 nm."




		All Silica High OH 0.22 NA Fibers (8) High OH concentration in these fibers results in efficient power transmission in the wavelength range from high UV through visible light. The all-silica base construction also creates a high damage threshold and high-performance optical properties. High temperature environments require the use of PYROCOAT® polyimide coating.




		All Silica Low OH 0.22 NA Fibers (7) Low OH concentration optimizes these fibers for use in the near-IR wavelengths. Biocompatibility features make these fibers ideal for laser surgery and other medical applications. The all-silica base construction creates a high damage threshold and high-performance optical properties. High temperature environments require the use of PYROCOAT® polyimide coating.




		Launch Fibers (5) Launch fibers are designed with low 0.22 numerical aperture — an extra low 0.15 NA is also available. These configurations can handle peak power delivery approaching 1GW/cm². The coating offers easy mechanical stripping and is compatible with either carbon or PYROCOAT® polyimide coatings, or both, when various combinations of hermeticity and/or high temperature resistance are needed. Launch fibers can also be metalized for hermetic sealing into opto-electronic devices.




		GeoSil™-MM Fibers GeoSil-MM fibers, made with a pure silica core, are step-index designs with a 50 µm core and extreme resistance to hydrogen in the Raman band from 1014 to 1114 nm in DTS applications. The abrasion-resistant and chemically resistant PYROCOAT® polyimide coating allows performance to 300 degrees C.