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HCXtreme Fibers
May 2007
For Improving High-Power Laser Performance in Tight Bends
AVON, Conn., May 15, 2007 -- OFS' Specialty Photonics Div., a maker of optical fiber and cable, has introduced four multimode step-index fibers that have been optimized to enhance the performance characteristics of the fibers in laser power delivery under tight bend. These HCXtreme fibers are designed for use with higher power lasers in medical treatments such as lithotripsy (kidney stones) and BPH (benign prostatic hyperplasia, or enlarged prostate) and laser-based cosmetic procedures.OFSFiber.jpg
Detail of bend performance testing on OFS Specialty Photonics'  HCXtreme fiber.
"Advances in laser technology and the increasing flexibility of the scopes used to introduce many of these fibers make it critical that fibers can handle higher energy at extreme bends," said Mick Speciale, OFS medical market manager.

Available in core diameters of 272 µm, 365 µm, 550 µm, and 940 µm, HCXtreme fibers are coated with a fluoroacrylate coating that is similar to the coating used in the HCS optical fiber product line, the company said. This coating has a lower refractive index than that of silica, so it also acts a second cladding that will guide light in the silica cladding of the fiber. The active performance of these fibers depends on the launch condition and the type of laser used.

OFS Specialty Photonics said its recent studies demonstrate that fibers with a low bend loss and optimized low-index coating are better suited for handling higher energy at extreme bends.

"The combination of a low bend-loss design and optimized coating that has an increased laser-induced damage threshold has been shown to increase the reliability of fiber under power and tight bends," said Speciale.

For more information, visit:

OFS Specialty Photonics
55 Darling Dr.
Avon, CT 06001
Phone: (8600 678-0371
Toll Free: (888) 438-9936 (US and Canada only)

The low-refractive-index material that surrounds the core of an optical fiber to contain core light while protecting against surface contaminant scattering. In all-glass fibers, the cladding is glass. In plastic-clad silica fibers, the plastic cladding also may serve as the coating.
Pertaining to optics and the phenomena of light.
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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