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Problems XV
- The most common carrier frequencies used for satellite communications are _____?
- One (1) angstrom (A) is often used to express wavelength which is equivalent to _____?
- When making the transition from one energy level to another, the atom absorbs a packet of energy called?
- Planck's constant is equivalent to _____?
- Gallium-arsenide has a refractive index of _____?
- The minimum angle of incidence at which a light ray may strike the interface of two media is called _____?
- A _____ has a central core with a uniform refractive index?
- In a _____ there is no cladding, and the refractive index of the core is nonuniform?
- A figure of merit that is used to measure the light-gathering or light-collecting ability of an optical fiber _____?
- Analogous to power dissipation in copper cables _____?
- It is usually made from a semiconductor material such as aluminum-gallium-arsenide or gallium-arsenide-phosphide _____?
- A process in which the trap photons in the active region stimulate free electrons to recombine with holes at a higher than normal energy level as they reflect back and forth _____?
- Probably the most common device used as a light detector in fiber optic communication systems _____?
- The energy gap for silicon is _____?
- A measure of the conversion effeciency of photodetector?
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