Advancing Biomedical Applications with Miniaturized, Energy-Efficient Lasers (532/561/594 nm)

25 July 2025

QD Laser developed and produced patented 532, 561 and 594 nm compact visible lasers in which a semiconductor DFB laser and nonlinear crystal are integrated in a small flat package. Since the linewidth of DFB laser is several MHz due to high selectivity of gratings for lasing wavelength, the visible light converted by nonlinear crystal is also single frequency with narrow linewidth. In addition, the optical power stability is high because high stability of optical power generated by DFB laser is directly transferred to the visible light. This enables improvement of detection accuracy and resolution of an object.