tunable lasers

Abbreviations Used in This Article (1) DFB：Distributed Feedback Laser(分布式反馈激光器)。It provides feedback through an integrated Bragg grating (a periodically modulated refractive index structure), achieving single longitudinal mode laser output with narrow linewidth and high wavelength stability, widely used in optical communication and sensing fields. (2) DBR：Distributed Bragg Reflector Laser(分布式布拉格反射器激光器)。Similar to DFB but with a different structure, … Read more