Solid-State Dye Laser with Photo-Induced Distributed Feedback

摘要: This paper describes the action of a solid-state dye laser utilizing photo-induced distributed feedback (DFB) resonator. We solidified rhodamine B into dried xerogel monolith using sol–gel method, and used it as an active medium. The pump source was third-harmonic generation (THG) produced by pulsed Nd:YAG laser. divided beam in two irradiated beams on interference fringes simultaneously form both spatial periodic modulation optical gain refractive index periodical structure functions DFB Without external resonator, we achieved oscillation with narrowed spectrum. full width at half maximum (FWHM) wavelength approximately 1 nm. tuned center from 600 nm to 635 In addition, second-order second-harmonic (SHG)