Optical Fiber addresses pump diode failure.

Press Release Summary:



PumpGuard fiber redistributes reverse-propagating, high-brightness light, a major cause of failure in multimode diodes used to pump fiber lasers and fiber amplifiers. It is offered in 105/125 microns and will be expanded to cover up to 400/480 microns, with numerical apertures from 0.12-0.22. PumpGuard is suited for pump legs on couplers and combiners, pump legs for double-clad fiber, multimode laser beam delivery fiber, and laser pump diode pigtails.



Original Press Release:



Nufern Introduces PumpGuard Optical Fiber Addresses Leading Cause of Pump Diode Failure



EAST GRANBY, CONN. - (January, 24, 2005) - Nufern, the largest independent manufacturer of fiber laser and amplifier modules and specialty optical fibers, announced today that it has completed the design of PumpGuard optical fiber (patent pending). PumpGuard optical fiber redistributes the reverse-propagating, high-brightness light, a major cause of failure in multimode diodes used to pump high beam quality fiber lasers and fiber amplifiers.

PumpGuard optical fiber provides a multitude of benefits for pump diode and pump coupler manufacturers. PumpGuard redistributes high-brightness, single-mode power, thereby eliminating the reverse-propagating, high-brightness light, a major destroyer of pump diodes. Finally, PumpGuard accomplishes the foregoing at little added cost as compared to existing fibers.

"PumpGuard optical fiber provides pump diode and pump coupler manufacturers with a secure means of enhancing the viability and lifespan of high-value multimode diode pumps, even when the pumps are exposed to severe high-brightness, back-reflected light from high beam quality fiber lasers and fiber amplifiers," said Upendra Manyam, scientist at Nufern.

PumpGuard optical fiber can be used in a variety of applications that include: pump legs on couplers and combiners, pump legs for double-clad fibers, multimode laser beam delivery fiber, and laser pump diode pigtails.

The PumpGuard family of optical fibers is currently offered in industry standard 105/125 microns and will be expanded to cover various high power delivery fibers up to 400/480 microns, with numerical apertures ranging from 0.12 to 0.22.

About Nufern
Nufern designs, manufactures, sells and supports fiber laser and amplifier modules and specialty optical fibers for a diverse range of industries. From its production, research and development facility in East Granby, Conn., USA, Nufern works from its core competencies in optical fiber design and integration to offer a wide array of standard fiber laser modules, fiber amplifiers and specialty fibers. Nufern's integrated team works closely with customers to provide rapid and cost-effective module and fiber design services. For more information, call toll-free, 866-466-0214, or visit www.nufern.com.

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