Abstract
Lensless in-line bandpass filters with low insertion losses and high backreflection losses are achieved with expanded-core fibers. It has been experimentally shown that using a large modal-field diameter of expanded-core fibers can resolve the problem of the trade-off between the insertion loss and backreflection. The reduction in the outer diameter, usually occurring when the modal-field diameter is enlarged to an extent, was suppressed at an optimized heating condition.
© 1995 Optical Society of America
Full Article | PDF ArticleMore Like This
T. Sato, J. Sun, R. Kasahara, and S. Kawakami
Opt. Lett. 24(19) 1337-1339 (1999)
V. A. Semenov, A. V. Belov, E. M. Dianov, A. A. Abramov, M. M. Bubnov, S. L. Semjonov, A. G. Shchebunjaev, V. F. Khopin, A. N. Guryanov, and N. N. Vechkanov
Appl. Opt. 34(24) 5331-5337 (1995)
X. Han, J. Yue, X. Hu, L. Feng, X. Yan, and Y. Zhang
Appl. Opt. 61(18) 5524-5531 (2022)