Controllable wavelength-selective coupling of bending dual-core photonic crystal fiber

Ultra‐compact liquid crystal dual core photonic crystal fibre multiplexer–demultiplexer

“…The coupling length value was improved by adjusting the diameter of the central hole in the structure. Moreover, a novel controllable wavelength‐selective coupling PCF has been proposed by Li et al [17]. The suggested design [17] allows selecting different wavelengths by controlling the bending radius of the fibre.…”

“…Moreover, a novel controllable wavelength‐selective coupling PCF has been proposed by Li et al [17]. The suggested design [17] allows selecting different wavelengths by controlling the bending radius of the fibre. However, the proposed design [17] has a long device length of 4741 μm.…”

“…The suggested design [17] allows selecting different wavelengths by controlling the bending radius of the fibre. However, the proposed design [17] has a long device length of 4741 μm. Additionally, Sun et al [18] reported a dual‐core surface plasmon PCF polarisation splitter of device length 577.5 μm.…”