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Conference 12028 > Paper 12028-8
Paper 12028-8

Laser-inscribed optical tap based on two-mode fiber with flexible branching property design

Abstract

We propose a wavelength and power tunable in-fiber optical tap composed of a long-period fiber grating (LPG) and an asymmetric tap waveguide inscribed in a two-mode fiber by using a femtosecond laser. By properly designing the LPG and tap waveguide, the transmitted LP01 mode is converted into the LP11 mode. The converted LP11 mode is coupled to the tap waveguide written toward the side of the fiber with variable wavelength and branching power ratio and then detected at the side of the fiber. The validity of our proposed concept was investigated with a fabricated sample.

Presenter

NTT - Tsukuba R&D Ctr. (Japan)
Yoko Yamashita received B.E. and M.E. degrees from Hokkaido University, Hokkaido, Japan, in 2015 and 2017, respectively. In 2017, she joined NTT Access Network Service Systems Laboratories, NTT, Ibaraki, Japan, where she has been engaged in research on laser inscription technique for space division multiplexing.
Presenter/Author
NTT - Tsukuba R&D Ctr. (Japan)
Author
NTT - Tsukuba R&D Ctr. (Japan)
Author
NTT - Tsukuba R&D Ctr. (Japan)
Author
Kazuhide Nakajima
NTT - Tsukuba R&D Ctr. (Japan)