Briefly describe two conditions that generally account for poor connections in fiber optic systems.
What will be an ideal response?
One of the greatest problems with fiber optic systems is poor connections. There are two conditions that generally account for poor connections: bad alignment between cables, or devices and air gaps between cables or devices. An air gap changes the index of refraction, causing Fresnel reflection at the point of connection. An air gap can produce an optical resonant cavity at the point of connection. This resonant cavity causes light to be reflected back to the transmitter where it is bounced back again, to be reflected back to the receiver. If the fiber optic cable is not aligned correctly, part of the light signal will not be transmitted between the two cables and the device to which it is connected. Losses due to poor connection can be substantial.
You might also like to view...
Unlike other hormones, T3 and T4 hormones require ________ for production.
A) iron B) carbon C) phosphorus D) iodine E) fluorine
Which of the following is LEAST-Likely a loose part of a bare head?
A. The cylinder bore B. The intake and exhaust valves C. The keepers and retainers D. The rocker arms
The Securities and Exchange Commission (SEC) was created during the Depression era to
regulate the sale of securities and curb unfair stock market practices.
Indicate whether the statement is true or false.Llamas and alpacas are social animals and should not be kept alone.
Answer the following statement true (T) or false (F)