Related Experiment Video
Updated: Jun 2, 2026
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Tunable microwave generation based on a dual-wavelength single-longitudinal-mode fiber laser using a phase-shifted
Meng Jiang1, Bo Lin, Perry Ping Shum
1School of Electrical and Electronics Engineering, Nanyang Technological University, 637553, Singapore. jiangmeng@ntu.edu.sg
Abstract:
Frequency tunable microwave signal generation, based on a dual-wavelength single-longitudinal-mode (SLM) erbium-doped fiber (EDF) laser, incorporating a phase-shifted fiber Bragg grating (PS-FBG) with two π-phase shifts, is demonstrated. In the proposed configuration, the PS-FBG with two ultranarrow transmission bands is embedded in a triangular cantilever to serve as a wavelength spacing tunable filter with a fixed center wavelength by applying various strains on the cantilever. A section of unpumped EDF is employed as a saturable absorber to ensure SLM operation in each of the two lasing lines. By beating the two wavelengths at a photodiode, a tunable microwave signal ranging from 8.835 to 24.360 GHz is successfully achieved.
