A research group led by Professor Yokoyama achieved the following results:

• Successfully formed ferroelectric (PLZT) thin film as a crystalline film on a silicon substrate
• Successfully fabricated ultra-high-speed optical modulator
• Achieved operating efficiency more than 10 times higher than existing devices
• Realized high-speed modulation operation exceeding 170 Giga-baud

Expected applications include optical network transmission technology supporting 6G and optical integrated technology for optical quantum computers.