High-energy thulium-doped fiber laser based on NPR technology

• Main Authors: ZHAO DESHENG, WANG TIANSHU, MA WANZHUO, LIU RUNMIN, WANG FUREN, LIU ZHI, CHEN JUNDA, CHEN BOWEN, LIN PENG, BAO JIANRONG, CHEN PEIDI, SONG GUANGBIN
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2019
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The invention discloses a high-energy thulium-doped fiber laser based on NPR technology and belongs to the technical field of optical information in order to solve the technical problem that a traditional thulium-doped fiber laser is low in generated soliton energy and a high-energy fiber laser is complex in structure. A laser pumping source is connected to the a-end of a wavelength division multiplexer. The b-end and the c-end of the wavelength division multiplexer are connected to one end of a single-mode high-doped thulium fiber and one end of a single-mode fiber respectively. The other endof the single-mode high-doped thulium fiber is connected to the d1-end of a coupler. The d2-end of the coupler is connected with an adjustable ultrahigh numerical aperture fiber. The other end of theadjustable ultrahigh numerical aperture fiber is connected with the e1-end of a polarization dependent isolator. The e2-end of the polarization dependent isolator is connected with a polarization controller. The other end of