title: Multichannel optical filters with an ultranarrow bandwidth based on sampled Brillouin dynamic gratings.
abstract: We first propose a multichannel optical filter with an ultra-narrow 3-dB bandwidth based on sampled Brillouin dynamic gratings (SBDGs). The multichannel optical filter is generated when an optical pulse interfaces with an optical pulse train based on an ordinary stimulated Brillouin scattering (SBS) process in a birefringent optical fiber. Multichannel optical filter based on SBDG is generated with a 3-dB bandwidth from 12.5 MHz to 1 GHz. In addition, a linearly chirped SBDG is proposed to generate multichannel dispersion compensator with a 3-dB bandwidth of 300 MHz and an extremely high dispersion value of 432 ns/nm. The proposed multichannel optical filters have important potential applications in the optical filtering, multichannel dispersion compensation and optical signal processing.
authors.forename: Jin-Jin
authors.initials: JJ
authors.lastname: Guo
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Ye
authors.initials: Y
authors.lastname: Deng
authors.forename: Ningbo
authors.initials: N
authors.lastname: Huang
authors.forename: Jianguo
authors.initials: J
authors.lastname: Liu
authors.forename: Ninghua
authors.initials: N
authors.lastname: Zhu