title: Large-effective-area ten-core fiber with cladding diameter of about 200 μm.
abstract: A multicore fiber with two-pitch layout is proposed to overcome the trade-off between core number and a cladding diameter of a standard hexagonal layout with a single-core pitch. A fabricated ten-core fiber simultaneously realizes effective area of about 120 μm(2) at 1550 nm, small crosstalk, and cladding diameter of 204 μm. The crosstalk between the center core and outer cores is about 30 dB smaller than that between outer cores. The small crosstalk of the center core would help to keep the transmission quality of the center core at the same level as that of the outer cores.
authors.affiliation: Optics and Electronics Laboratory, Fujikura Ltd. 1440, Mutsuzaki, Sakura, Chiba 285-8550, Japan. shoichiro.matsuo@jp.fujikura.com
authors.forename: Shoichiro
authors.initials: S
authors.lastname: Matsuo
authors.forename: Katsuihiro
authors.initials: K
authors.lastname: Takenaga
authors.forename: Yoko
authors.initials: Y
authors.lastname: Arakawa
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Sasaki
authors.forename: Shoji
authors.initials: S
authors.lastname: Taniagwa
authors.forename: Kunimasa
authors.initials: K
authors.lastname: Saitoh
authors.forename: Masanori
authors.initials: M
authors.lastname: Koshiba