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Fiber Optic Reference Guide, 3rd Edition
book

Fiber Optic Reference Guide, 3rd Edition

by David Goff
March 2002
Intermediate to advanced content levelIntermediate to advanced
260 pages
9h 58m
English
Routledge
Content preview from Fiber Optic Reference Guide, 3rd Edition

7 OTHER ACTIVE DEVICES

 

SEMICONDUCTOR OPTICAL AMPLIFIERS

Semiconductor optical amplifiers (SOA's) are essentially laser diodes, without end mirrors, which have fiber attached to both ends. They amplify any optical signal that comes from either fiber and transmit an amplified version of the signal out the second fiber. An SOA can be constructed in a small package, and they work for 1310 nm or 1550 nm systems. In addition, SOA's transmit bidirectionally, making the reduced size of the device an advantage over regenerators or EDFA's. Drawbacks to SOA's include high-coupling losses, polarization dependence, and a higher noise figure. Figure 7.1 illustrates the basics of a semiconductor optical amplifier.

Figure 7.1 Semiconductor Optical Amplifier ...

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Publisher Resources

ISBN: 9780240804866