Breakthrough in PCSEL Optical Sensing Technology Enables 2 µm-Band Infrared Laser Generation

This achievement in PCSEL technology is well-suited to high-sensitivity greenhouse gas detection, as the 2 µm wavelength band includes absorption lines associated with gases such as CO₂ and CH₄. By combining this property with the high directionality and narrow linewidth of PCSEL, applications are expected in fields requiring high-precision measurement of trace gases.

“These advancements demonstrate the strong potential of PCSEL for applications requiring high power and precise optical control,” said Yoshinobu Fujimoto, General Manager of R&D at AKM’s Business Development Center. “By combining AKM’s technological background with the expertise of Professor Susumu Noda and his team at Kyoto University, we are unlocking new performance capabilities that could benefit a wide range of applications.”