A prototype of a new high-speed modulation, the 532 nm-wavelength green laser module, will be exhibited at the SPIE Photonics West convention in San Francisco from Jan. 24.
The laser—developed by QD Laser Inc., the Institute for Nano Quantum Information Electronics, the University of Tokyo, and Fujitsu Laboratories—is one of a new generation of green lasers that are finding applications in many fields, including the biomedical sciences and industry.
Unlike the near-infrared lasers used for optical communications and the red and blue lasers used in optical storage, high-power green lasers usually rely on diode pumped solid state (DPSS) lasers rather than semiconductors lasers.
The designers of the new laser say it breaks new ground by combining a near-infrared high-power single-mode laser based on semiconductor laser technology with wavelength conversion technology, and offers compact size, high efficiency, and high speed modulation of more than 100 MHz.
The laser module can be used in microscopes, spectral analysis equipment and ultra-compact projectors.
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