title: Fabrication of all-solid photonic bandgap fiber coupler.
abstract: We report the fabrication of a tunable all-solid photonic bandgap fiber coupler based on the side-polishing technique. This device is believed to be the first demonstration of a photonic bandgap fiber coupler to eliminate the contamination of the open air holes. By adjusting the length of the interaction section, the tunable coupling ratio as much as 92.5% at 1550 nm is achieved. The investigation of the spectrum properties shows that the coupler has excellent tunability properties, for which the coupling ratio can be smoothly and continuously controlled.
authors.affiliation: Network Technology Research Centre, Nanyang Technological University, Singapore. gbren@ntu.edu.sg
authors.forename: Guobin
authors.initials: G
authors.lastname: Ren
authors.forename: Ping
authors.initials: P
authors.lastname: Shum
authors.forename: JuanJuan
authors.initials: J
authors.lastname: Hu
authors.forename: Xia
authors.initials: X
authors.lastname: Yu
authors.forename: Yandong
authors.initials: Y
authors.lastname: Gong