Ultracompact in-line broadband Mach-Zehnder interferometer using a composite leaky hollow-optical-fiber waveguide.
We report on an ultracompact fiber optic Mach-Zehnder interferometer (MZI) using a novel concatenated structure, single-mode-fiber (SMF)-hollow optical fiber (HOF)-SMF. An optimized air-hole size in the HOF provided two unique optical paths; the leaky waveguide modes through the central air hole and the radiation channel into the silica cladding, which enabled a compact MZI configuration with enhanced optical performances, such as high visibility, high temperature sensitivity, and wide dynamic range.
Jung
Yongmin
Y
Optoelectronics Research Centre, University of Southampton, Southampton, UK.
Lee
Sejin
S
Lee
Byeong Ha
BH
Oh
Kyunghwan
K
D003198:Computer Simulation; D004867:Equipment Design; D005336:Fiber Optic Technology; D007368:Interferometry / Q000379:methods*; D055096:Optical Devices; D055100:Optical Fibers; D055095:Optics and Photonics; D012031:Refractometry / Q000379:methods; D012822:Silicon Dioxide / Q000737:chemistry*; D013696:Temperature
D012822:Silicon Dioxide