We demonstrate single-mode ZBLAN optical fiber couplers. A controlled tapering procedure leads to coupling ratios of 5%/95% and 14%/86% at a wavelength 2200 nm, with insertion losses 1.6 dB 1.8 dB, respectively.

Abstract The multi-dimensional multiplexing technology is very promising for further increasing the link capacity of optical interconnects. A 96-channel silicon-based on-chip reconfigurable add-drop multiplexer (ROADM) proposed and demonstrated first time to satisfy demands in hybrid mode/polarization/wavelengthdivision-multiplexing systems. present ROADM consists a six-channel mode/polarizatio...

The PI and his group opened up new directions of research: the generation of vector beams with metasurfaces that control amplitude, phase and polarization of wavefronts, the detection of wavefronts using metasurfaces, new metasurfaces for controlling surface plasmon wavefronts and high performance device applications of metasurfaces on graphene. In the vector beam area they generated radially p...

In this paper we numerically investigate the effect of relative phase on thestability of temporal bright solitons in a Nano PT- Symmetric nonlinear directionalcoupler (NLDC) by considering gain in bar and loss in cross. We also study the effect ofrelative phase on the output perturbed bright solitons energies, in the range of   0 to 180 . By using perturbation theory three eigenfunctions an...

Power-dependent switching between the interacting modes of nonlinear dual-core (two-waveguide) couplers has attracted a great deal of interest during the past several years (see, for example, Synder et al.1 for a review of various physically important situations). In the theoretical papers2 -4 it has been demonstrated that three-waveguide nonlinear directional couplers offer some distinct advan...

In this study, grouted couplers were used to connect steel bars as an alternative approach the conventional bar lapping method. The aim is avoid congestion problems and reduce required quantity of in order achieve development length practice. Two categories couplers, i.e., short-threaded grout coupler long coupler, nine groups well one group deformed bars, tested under uniaxial tension. total, ...