Mode-locked laser with high-order mode generation based on grating combiner
- Resource Type
- Conference
- Authors
- Lu, Yaqiong; Bai, Shaokang; Zhang, Zuxing
- Source
- 2021 19th International Conference on Optical Communications and Networks (ICOCN) Optical Communications and Networks (ICOCN), 2021 19th International Conference on. :1-4 Aug, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Optical fiber polarization
Laser mode locking
Laser noise
Measurement by laser beam
Optical fiber networks
Fiber gratings
Laser beams
fiber Bragg grating
long-period fiber grating
cylindrical vector beam
- Language
We propose and demonstrate an all-fiber passively mode-locked laser that generates high-order mode. A grating combiner of a few-mode long-period fiber grating and a few-mode fiber Bragg grating are introduced into the laser cavity to achieve the purposes of mode conversion and mode selection. The result of the mode-locked high-order mode pulse with a spectral width of 0.06 nm of 3 dB and a repetition rate of 12.88 MHz has been obtained, and the signal to noise ratio is as high as 68 dB.