Explanation

A crystal that forms a tunable laser. The output wavelength of the laser can be continuously changed when the resonant frequency of the resonator is changed by changing the tuning element in the resonator. color centers crystal can be grown by pulling method method, zone-melting method method and descent method. The tunable laser composed of tunable laser crystal has a wider tunable range than the dye or dyestuffc tunable laser. The system has a compact and firm structure, long working life, no flowing parts, and is more suitable for carrying. It has a wide range of applications in remote sensing, ranging, radar, communications, and medical, biological, and chemical aspects of the cosmic environment.

Classification