In response to increasingly diverse needs for optical communication, we are promoting R&D activities to offer high performance LN optical modulators. LN Modulator Thesis 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Technical Report 60GHz resonant type LiNbO3 light modulator Quality inspenction of LiNbO3 wafwer for optical modulator use by optical methods Development of Millimeter-wave Optical Modulators