Title:
マルチコアファイバ
Document Type and Number:
Japanese Patent JP5808767
Kind Code:
B2
Abstract:
A multi-core fiber (1) comprises: a cladding (20); a plurality of core elements (10) provided within the cladding (20), each of which has a core (11), an inner cladding layer (12) that surrounds the core (11), and an outer cladding layer (13) that surrounds the inner cladding layer (12) and that has a mean refractive index lower than that of the cladding (20) and the inner cladding layer (12); and a plurality of stress-adjusting parts (15) provided within the cladding (20) and having a mean refractive index lower than that of the cladding (20) and the inner cladding layers (12). The stress-adjusting parts (15) are arranged such that, in the light propagating through each core element (10), the effective refractive index for polarized waves belonging to the same LP mode is reduced.
Inventors:
Yusuke Sasaki
Katsuhiro Takenaga
Shinto Saito
Masanori Koshiba
Katsuhiro Takenaga
Shinto Saito
Masanori Koshiba
Application Number:
JP2013037810A
Publication Date:
November 10, 2015
Filing Date:
February 27, 2013
Export Citation:
Assignee:
Fujikura Ltd.
National University Corporation Hokkaido University
National University Corporation Hokkaido University
International Classes:
G02B6/02; G02B6/036
Domestic Patent References:
| JP2012181282A | ||||
| JP2013020207A |
Foreign References:
| WO2011114795A1 | ||||
| WO2012063775A1 | ||||
| WO2012118132A1 | ||||
| WO2006098470A1 | ||||
| WO2006098471A1 |
Attorney, Agent or Firm:
Yasuo Morimura
Hiroaki Aoki
Hiroaki Aoki