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| FDK's Free-Space VOA Attains Fast Response in very small package | ||||||||||||||||||||||||||
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| Jan. 15, 2009 FDK CORPORATION |
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| FDK Corporation (Tokyo Stock Exchange 1st Section: Code 6955), announces the development of its YS-520 free space variable optical attenuator (VOA) which boasts a fast response below 10 micro (μ) seconds and the world smallest size*1. An optical attenuator is a device used to reduce the power level of an optical signal. It is commonly used in optical fiber communications. FDK provides optical attenuators for optical fiber communication network systems for long distance arteries. These attenuators require rigorous product qualities. The YS-520 was developed to offer the same high quality in an attenuator used for metro and access network applications. FDK's new VOA YS-520 is 5 * 5 * 5mm, the smallest size in the world and 1/10 the size of our conventional models, while its response speed of 10μ seconds is 30 times faster than our conventional models. In response to downsizing and simplification requirements for metro and access network applications, FDK has taken advantage of its magneto optic and original fine processing technology that were cultivated for long-distance networks for this new product. By reducing VOA size, semiconductor laser diodes, highly-sensitive light receiving elements, and other parts which used to be separately integrated or mounted can now be placed in the same package. Moreover, this high speed responsiveness can promptly attenuate light strength when a harmful optical surge is generated. This combination enables the system configuration in protection circuits and similar applications to be greatly simplified. Note: *1. According to FDK's investigation
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