title: Lensed photonic crystal fiber obtained by use of an arc discharge.
abstract: A lensed photonic crystal fiber (PCF) is proposed as an effective element for an optical free-space interconnector. By simultaneously forming a beam-expansion region and a focusing lens on a single piece of PCF, effective coupling between PCFs could be achieved. A long working distance of up to 1 mm with wide longitudinal and lateral tolerances was measured. The optical characteristics of the lensed PCFs and the connectors made from them are analyzed experimentally and theoretically.
authors.affiliation: Department of Information and Communications, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju 500-712, South Korea.
authors.forename: Gyeong-Jun
authors.initials: GJ
authors.lastname: Kong
authors.forename: Jinchae
authors.initials: J
authors.lastname: Kim
authors.forename: Hae-Young
authors.initials: HY
authors.lastname: Choi
authors.forename: Joo Eun
authors.initials: JE
authors.lastname: Im
authors.forename: Byung-Hyuk
authors.initials: BH
authors.lastname: Park
authors.forename: Un-Chul
authors.initials: UC
authors.lastname: Paek
authors.forename: Byeong Ha
authors.initials: BH
authors.lastname: Lee