532nm 1064nm Picosecond Pulse Fiber Laser Manufacturers

A team from Zhejiang University's College of Optoelectronic Science and Engineering and Haining International University recently published their research findings on the world's first perovskite laser in the international journal Nature. This device, which utilizes a dual optical microcavity structure, combines low power consumption with easy tunability, making it suitable for applications such as optical data transmission and as a light-emitting diode in integrated photonic chips and wearable devices.

Some solid-state laser gain media are doped with transition metal ions, and the transitions involved are those of electrons in the three-dimensional shell. Figure 1 shows the commonly used transition metal ions and their host media.

An SOA (Semiconductor Optical Amplifier Switch) is a core optical device that realizes optical signal switching/routing based on the gain saturation characteristics of a semiconductor optical amplifier (SOA). It combines the dual functions of "optical amplification" and "optical switching" and is widely used in optoelectronic communications (such as optical modules, optical cross-connects (OXC), and data center optical interconnects), especially suitable for high-speed, high-density optical network scenarios.

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.