Photonic Crystal Fibers support high gain fiber lasers.
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Press Release Summary:
Dual clad, Ytterbium-doped, Series F-DC is available in several core sizes up to 40 microns. Some fibers are co-doped with photosensitive materials to allow fiber grating inscription with UV laser. Outer cladding material is air, allowing pump light to be coupled into inner cladding at numerical aperture greater than 0.6. Core has structured PCF cross-section to provide large mode area, which enables high-power, single-mode operation without non-linear optical effects.
Original Press Release:
Ytterbium Doped PCFs Support High Gain Fiber Lasers
Irvine, California - June 29, 2004 - Newport Corporation has released a family of Ytterbium-doped PCF (photonic crystal fiber) products that offer superior performance to existing Yb-doped dual clad step index fibers for fiber laser applications. Specifically, these new F-DC dual clad fibers enable higher output power levels in a single spatial mode format. Some of these high-brightness fibers are even available co-doped with photosensitive materials, to allow fiber grating inscription with an ultraviolet laser. Newport offers these off-the-shelf catalog products in several core sizes of up to 40 microns.
This new F-DC series of PCF products is targeted at researchers involved with fiber laser development and applications. Many research groups believe this type of all-silica fiber will be a key technology platform in the development of higher power, next-generation fiber lasers. Fiber lasers currently serve growing markets in research, medicine, welding and materials processing.
These PCF products differ from conventional step-index Yb-doped fibers in several key aspects. First the outer cladding media is air rather than plastic. This means that pump light can be efficiently coupled into the inner cladding at a high numerical aperture (N.A.>0.6), allowing high pump powers to be easily launched into the fiber. Moreover, the absence of polymer cladding means that there is no danger of degrading the exposed end of the fiber by thermal damage to the polymer, even at high pump powers. The microstructured core also serves to scramble the pump modes in the inner cladding, leading to efficient coupling of the pump power into the active core.
Second, the core has a structured PCF cross-section rather than a simple cylinder of silica. This structure has been optimized to provide a large mode area, while still ensuring single spatial mode output. A large mode area enables high power (>500 watts CW), single mode operation without the non-linear optical effects that are problematic when operating step index fibers at these power levels.
More information on Newport's comprehensive line of PCF products is available on the company's web site at newport.com/pcfpr/.
About Newport Corporation
Newport Corporation is a leading global supplier of advanced technology products and systems to the semiconductor, communications, electronics and research markets. The company provides components and integrated subsystems to manufacturers of semiconductor processing equipment, advanced automated assembly and test systems to manufacturers of communications and electronics devices, and a broad array of high-precision components and instruments to commercial, academic and government customers worldwide. Newport's innovative solutions leverage its expertise in precision robotics and automation, sub-micron positioning systems, vibration isolation and optical subsystems to enhance the capabilities and productivity of its customers' manufacturing, engineering and research applications. Newport is part of the Standard & Poor's Midcap 400 Index and the Russell 2000 Index. For more information, visit www.newport.com, or contact the company at 1791 Deere Avenue, Irvine, California, 92606, USA, Tel. (In U.S.) (800) 222-6440; Tel: (949) 863-3144; Fax: (949) 253-1800.
Company Contact:
Worldwide Headquarters
David Rossi
Director of Marketing
Tel: 949.863.3144
Fax: 949.253.1800
E-mail: drossi@newport.com
Hector Lara
Senior Product Manager
Tel: 949.437.9874
Fax: 949.253.1983
E-mail: hlara@newport.com
Europe
Geneviève de Roland
Marketing Communications Department
Tel: 011.33.1.60.91.68.68
Fax: 011.33.1.60.91.68.69
E-mail: gderoland@newport-fr.com
