1580nm DFB Butterfly Laser Diodes Manufacturers

Directly generating visible light from compact all-fiber lasers while maintaining high output characteristics has always been a research topic in laser technology. Here, Ji et al. proposed a method to develop dual-wavelength lasers using the excitation mechanism in holmium-doped ZBLAN fluoride glass fibers, and experimentally achieved high output performance of all-fiber lasers, especially operating in the deep red band under 640 nm pumping. Notably, a maximum continuous wave output power of 271 mW was achieved at 750 nm with a slope efficiency of 45.1%, which is the highest direct output power recorded in all-fiber lasers with a core diameter of less than 10 μm in the deep red band.

The SLED light source is an ultra-wideband light source designed for special applications such as sensing, fiber optic gyroscopes, and laboratories.

What is Lidar (LiDAR)? Lidar combines radar ranging capabilities with camera angular resolution to provide accurate depth-aware sensing to complete the image

Vertical cavity surface emitting laser is a new generation of semiconductor laser that has been developing rapidly in recent years. The so-called "vertical cavity surface emission" means that the laser emission direction is perpendicular to the cleavage plane or substrate surface. Another emission method corresponding to it is called "edge emission". Traditional semiconductor lasers adopt an edge-emitting mode, that is, the laser emission direction is parallel to the substrate surface. This type of laser is called an edge-emitting laser (EEL). Compared with EEL, VCSEL has the advantages of good beam quality, single-mode output, high modulation bandwidth, long life, easy integration and testing, etc., so it has been widely used in optical communications, optical display, optical sensing and other fields.

Recently, Zhang Weijun, a researcher at Anhui Institute of Optics and Fine Mechanics, Hefei Institute of Physical Science, Chinese Academy of Sciences, has made progress in atmospheric nitrogen dioxide (NO2) detection technology. A new method for rapid and sensitive detection of NO2" was published in the American Chemical Society "Analytical Chemistry".