Applied Physics B

, Volume 86, Issue 1, pp 61–64

Photonic generation of microwave signals using a dual-transmission-band FBG filter with controllable wavelength spacing


DOI: 10.1007/s00340-006-2471-z

Cite this article as:
Xia, L., Shum, P. & Cheng, T. Appl. Phys. B (2007) 86: 61. doi:10.1007/s00340-006-2471-z


Two π-phase shifts are introduced in a uniform fiber Bragg grating (FBG) structure and a dual-transmission-band opens in the stopband of FBG. When incorporating this kind of FBG filter in a fiber ring cavity with a semiconductor optical amplifier (SOA) acted as gain medium, a stable dual-wavelength lasing with wavelength spacing of 0.032, 0.052 and 0.068 nm is achieved, respectively. Therefore, the laser output is heterodyned on a photodetector and desired microwave frequencies of 3.15, 6.16 and 8.08 GHz are generated.

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.School of Electrical and Electronic EngineeringNanyang Technological UniversitySingaporeSingapore