Topics Development of Optical Phase-Locked Loop Capable of Synchronizing Ultrafast Optical Signals -1-THz Repetition Rate Synchronized Optical Clock Signal Generation Realized for the First Time in the World- April 25, 2008 Suit filed against Opnext Japan, Inc. for Infringement of Basic Patent on Optical Semiconductor Laser March 28, 2008 Release of a Polarization-maintaining Fiber Laser of Low Price and World-class Minimized Size January 10, 2008

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