title: Tunable add/drop channel coupler based on an acousto-optic tunable filter and a tapered fiber.
abstract: We report a tunable add/drop channel coupler based on an acousto-optic tunable filter and a tapered fiber. The coupling efficiency and central wavelength of the add/drop channel coupler are tunable by simply tuning the power and frequency of the driving radio frequency signal. Further possible improvements on the configuration are also discussed.
authors.affiliation: MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics School and School of Physics, Nankai University, Tianjin, China.
authors.forename: Wending
authors.initials: W
authors.lastname: Zhang
authors.forename: Ligang
authors.initials: L
authors.lastname: Huang
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.forename: Fang
authors.initials: F
authors.lastname: Bo
authors.forename: Li
authors.initials: L
authors.lastname: Xuan
authors.forename: Guoquan
authors.initials: G
authors.lastname: Zhang
authors.forename: Jingjun
authors.initials: J
authors.lastname: Xu