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Transmission Technology: what’s the big deal? - page 3 / 46

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Essentially a Semaphore

Power

“Wavelength”

Time

Power

The transmitter turns a laser on and off 10 billion times per second. The receiver converts the light back to an electrical signal.

For non-WDM systems, the source laser is a non-temperature controlled source that consumes a broad spectral bandwidth.

Nominal frequencies are typically 1310 or 1550.

11111010101

1550nm

20nm

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