[21a-E204-1~8] 3.14 Optical control devices and optical fibers

[21a-E204-7] Wavelength controllability of MMI fiber filters using liquid cladding in capillary tube

〇Yuki Shimizu¹, Yuto Natsume¹, Hajime Sakata¹ (1.Shizuoka Univ.)

Keywords:multi-mode interference

Transmitted spectrum can be controlled by changing the parameters of the multi-mode interference (MMI) structures configured in the optical fibers. The wavelength-controllable MMI structures are formed using a no-core fiber as a core and a liquid as a clading. Thus the bandpass filter response is obtained. In this study, we report the change in the filter wavelength due to the liquid refractive index.