ADH Communications just joined Manta.

ADH Communications becomes the manufactures representative for YR20 for the SouthEast.

ADH Communications becomes an authorized reseller for SonicWall.

ADH Communications just joined the Chamber of Commerce of Gwinnett County!

ADH Communications has projects going on in 7 different states!

I have worked with Hartmut and ADH on several occasions. “The ADH goal of providing one with the best technology yet cost effective solutions shows their concern for their customers”
-Tim O’Neill  - The “Oldcommguy™”
B.T. Solutions, Inc.

A leading supplier for converged networks

Provides the best possible solution at the best possible price

Is a partner to our customers

Helps with all your needs to design, install and maintain your mission critical networks

Providing, Installing & Supporting
-Wired and wireless networks
-Triple play networks infrastructure
-High speed back-bone networks
-Industrial Ethernet production control networks
-And more

PO Box 443
Lake Geneva, WI 53147


or simply fill out the form on the contact page.

ADH Communications Manta Profile


Fiber Optics

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numbers


W: Abbreviation for Watt. A linear measurement of optical power, usually expressed in milliwatts, microwatts, and nanowatts.
WAN: See Wide Area Network.

Waveguide: A material medium that confines and guides a propagating electromagnetic wave. In the microwave regime, a waveguide normally consists of a hollow metallic conductor, generally rectangular, elliptical, or circular in cross-section. This type of waveguide may, under certain conditions, contain a solid or gaseous dielectric material. In the optical regime, a waveguide used as a long transmission line consists of a solid dielectric filament (fiber), usually circular in cross-section. In integrated optical circuits an optical waveguide may consist of a thin dielectric film. In the RF regime, ionized layers of the stratosphere and the refractive surfaces of the troposphere may also serve as a waveguide.

Waveguide Coupler: A coupler in which light gets transferred between planar waveguides.
Waveguide Dispersion: The part of chromatic dispersion arising from the different speeds light travels in the core and cladding of a single-mode fiber (i.e., from the fiber’s waveguide structure).


Wavelength: The distance between points of corresponding phase of two consecutive cycles of a wave. The wavelength relates to the propagation velocity, and the frequency, by:

Wavelength = Propagation Velocity / Frequency

Wavelength Adapter: A device which receives one wavelength and outputs a second wavelength, usually to take a standard signal and convert it to an ITU wavelength.

Wavelength-division Multiplexing (WDM): Sending several signals through one fiber with different wavelengths of light.
Dual Unidirectional WDM
Wavelength Isolation: A WDM’s isolation of a light signal in the desired optical channel from the unwanted optical channels. Also called far-end crosstalk.
Wavelength Routing Switch (WRS): A switch, used in optical networks, that routes wavelengths as required to specific terminals in the network.
Wavelength Selective Coupler: A device which couples the pump laser wavelength to the optical fiber while filtering out all other unwanted wavelengths. Used in erbium-doped fiber amplifiers.
Wavelength Stability: The maximum deviation of the peak wavelength of an optical source from its average wavelength.
WDM: See wavelength-division multiplexing.
Weather Fade: In satellite systems, the loss of a satellite signal due to extremely heavy (and generally very localized) rain, snow, or other extreme weather.
Wide Area Network (WAN): A physical or logical network that provides capabilities for a number of independent devices to communicate with each other over a common transmission-interconnected topology in geographic areas larger than those served by local area networks or metropolitan area networks.
Types of Area Networks
Wideband: Possessing large bandwidth.
Wireless: A network or terminal that uses electromagnetic waves, such as RF, infrared, laser, visible light, and acoustic energy, not wires,  for telecommunications.
WWW (World Wide Web) : The collection of millions of graphical pages that heavily utilize HTML to provide access to information. One of the key components of the Internet.



X-Band: The frequency range between 8.0 and 8.4 GHz.
XC: See cross-connect.
XGM: See cross-gain modulation.
XPM: See cross-phase modulation.
X-Series Recommendations: Sets of data telecommunications protocols and interfaces defined by the ITU.
XT: See crosstalk.
Y Coupler: A variation on the tee coupler in which input light is split between two channels (typically planar waveguide) that branch out like a Y from the input.
Y Coupler



Zero-dispersion Slope: In single-mode fiber, the rate of change of dispersion with respect to wavelength, at the fiber’s zero-dispersion wavelength.
Zero-dispersion Wavelength (l0): In a single-mode optical fiber, the wavelength at which material dispersion and waveguide dispersion cancel one another. The wavelength of maximum bandwidth in the fiber. Also called zero-dispersion point.
Zipcord: A two-fiber cable consisting of two single fiber cables having conjoined jackets. A zipcord cable can be easily divided by slitting and pulling the conjoined jackets apart.
Parts of a Zipcord


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numbers

Copyright © 2010 by David R. Goff. Used by permission. All rights reserved.