QD Laser Inc.
A prototype of a high-power 532-nm compact green laser module developed by QD Laser Inc. of Kanagawa, Japan, was displayed at SPIE Photonics West in San Francisco in January. The device, developed with the Institute for Nano Quantum Information Electronics, the University of Tokyo and Fujitsu Laboratories Ltd., has confirmed green light output greater than 100 mW under continuous-wave conditions and high-speed modulation of more than 100 MHz. They also obtained a linewidth of <0.01 nm with a high side-mode suppression ratio. The green laser is suitable for applications including fluorescence microscopy and spectral analysis in the life sciences.