Fabrication of OH-free, single-mode fiber by using slurry casting and rod-in-tube method

IEICE Electronics Express

Futoshi Ishii¹  Tamotsu Yajima¹  Yusuke Kinoshita¹  Masataka Nakazawa²  Masato Yoshida²  Jun Yamamoto¹  Toshihiko Hirooka² 

[1] Kohoku Kogyo Co. Ltd.;Research Institute of Electrical Communication, Tohoku University

关键词: single-mode fiber;    rod-in-tube method;    slurry casting method;    multi-core fiber;   

DOI  :  10.1587/elex.12.20151005

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(13)We present a new simple and low-cost process for fabricating low-loss single-mode fiber (SMF) cladding preforms by a modified slurry casting method, in which the cladding preform and a core rod obtained separately with the VAD method are assembled by a rod-in-tube method. The fabricated SMF showed almost the same loss characteristics as a standard SMF with a minimum loss of 0.19 dB/km at 1550 nm and an OH-free loss spectrum, which were realized with an OH reduction process in a slurry casting based cladding. This OH reduction method plays an important role in preventing OH diffusion into the core and inner cladding.

【 授权许可】

Unknown