tapered waveguide

tapered waveguide

[′tā·pərd ′wāv‚gīd]
(electromagnetism)
A waveguide in which a physical or electrical characteristic changes continuously with distance along the axis of the waveguide. Also known as tapered transmission line.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The schematic diagram of linearly tapered waveguide with AMM cladding is shown in the Fig.
The HMM tapered strips can be treated as periodic tapered waveguides. For a guided mode at some wavelengths, when it propagates down along an MM- tapered waveguide gradually towards some critical width where the group velocity ([v.sub.g] = [dw.sub.c]/d[beta]) approaches 0, it is slowed down, trapped, and blocked.
To decrease optical reflection and improve precision, a hyperbolic tapered waveguide with a length of 2050 [micro]m is used to connect single mode input/output ports to the MMI section.
In the latter case performance of the tapered waveguide with the [lambda]/4 matching layer (is the [lambda] wavelength) of finite lateral dimensions becomes very important.
The improvements based on the structure presented in Section 2.2 include a tapered waveguide inserted before the tapered MMI, such that a preexpanded structure and a tapered waveguide are connected to the output waveguide inlet end.
Now, according to a report in New Scientist, Vera Smolyaninova of Towson University in Baltimore, Maryland, and colleagues have used a convex lens to create the tapered waveguide and trap a rainbow of light.
The system's tapered waveguide provides rich, lifelike sound that can fill most rooms.
For obtaining 0 to 20 KV/cm biasing fields, the waveguide cross section is reduced from 0.622" X 0.311" to 0.622" X 0.08" cross sections of 6" long tapered waveguide sections.
Ackerman, "Efficient coupling of a semiconductor laser to an optical fiber by means of a tapered waveguide on silicon," Appl.
Wu [16] had been made a novel multimode interference coupler with exponentially tapered waveguide. Kuo et al.
2 Tapered Waveguide [13]--It accompanies the introduction of gradient tapers in the PC waveguides for the effective coupling of an input beam.