Results 201 to 210 of about 2,389 (259)

High-Performance and Fabrication-Tolerant 3 dB Adiabatic Coupler Based on Ultralow-Loss Silicon Waveguide by Tri-Layer Hard Mask Etching Process. [PDF]

Nanomaterials (Basel)
Zhang K, Yu Y, Zhu N, Zhang S, Sun J, Ding S, Zhang DW.   +6 more
europepmc   +1 more source

A Passive Ladder-Shaped FBG Sensor Network with Fault Detection Using Time- and Wavelength-Division Multiplexing. [PDF]

Sensors (Basel)
Kuroda K.
europepmc   +1 more source

Double-layer silicon-based optical phased array transceiver based on cascaded phase control. [PDF]

Sci Rep
Zhang Y, Wang R, Wei M, Jiang R, Zhang H, Huang JS.   +5 more
europepmc   +1 more source

Experimental Characterization of a Silicon Nitride Asymmetric Loop-Terminated Mach-Zehnder Interferometer with a Refractive Index-Engineered Sensing Arm. [PDF]

Nanomaterials (Basel)
Butt MA, Słowikowski M, Drecka D, Jarosik M, Piramidowicz R.   +4 more
europepmc   +1 more source

Design and fabrication of a compact microstrip hybrid ring coupler with harmonic reduction for L band radar system. [PDF]

Sci Rep
Roshani S, Yahya SI, Moradi M, Chaudhary MA, Assaad M, Hazzazi F, Hussin FA, Karaaslan M, Roshani S.   +8 more
europepmc   +1 more source

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Mismatched directional couplers

Optics Letters, 1990
Various twin-core couplers composed of mismatched optical fibers are capable of complete power transfer over lengths only moderately longer than their matched analogs. Examples include tapered and piecewise-continuous mismatched couplers. These linear couplers also provide insight into the mechanism of nonlinear coupling because nonlinearity induces ...
Snyder, Allan W., Chen, Yijiang, Rowland, David, Mitchell, D. John   +3 more
openaire   +3 more sources

Ferrite Directional Couplers

Proceedings of the IRE, 1956
A novel directional X-band coupler based on the nonreciprocal scattering properties of a ferrite cylinder is described. Experimental data for coupling and directivity are given as a function of various parameters. Approximate theoretical expressions for coupling and directivity are derived and discussed.
A. Berk, E. Strumwasser
openaire   +1 more source

Adjustable Directional Couplers

Instruments and Experimental Techniques, 2003
The characteristics of directional couplers with coupling factors of 3.0 and 12.6 dB at 1.3 GHz are calculated. The devices are based on 165.1 × 82.5 mm2 rectangular waveguides coupled through their common narrow walls. In both devices, the coupling factor can be varied within ±1 dB relative to its nominal value (at a directivity of no less than 25 dB).
B. Yu. Bogdanovich, M. A. Egorov, D. A. Zavadtsev, V. I. Kaminskii, A. A. Krasnov, M. V. Lalayan, N. P. Sobenin   +6 more
openaire   +1 more source