Mach-Zehnder interferometers assembled with optical microfibers or nanofibers.
We demonstrate Mach-Zehnder interferometers (MZI) assembled using optical microfibers or nanofibers (MNFs) drawn from silica fibers and tellurite glasses. As-assembled MZIs, with dimensions of tens to hundreds of micrometers, show good interference fringes with extinction ratios of approximately 10 dB. The path-length difference of the MZI can be tuned by micromanipulation under an optical microscope. The MNF-assembled MZIs demonstrated here show advantages of easy fabrication, in situ tunability, and compact size.
Li
Yuhang
Y
State Key Laboratory of Modern Optical Instrumentation, and Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China.
Tong
Limin
L