Wavelength division multiplexing passive optical network...

Details Wavelength division multiplexing passive optical network... Wavelength division multiplexing passive optical network...

2011-06-21

2011-06-21

Vanderpuye, Ken N (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S186000, C398S188000, C398S067000, C398S211000

Reexamination Certificate

active

07965947

ABSTRACT:
An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving an original carrier signal with downstream data over the optical fiber. The optical network unit includes a modulator configured to remodulate the original carrier signal with upstream data to produce an upstream data signal for transmission back down the optical fiber in a direction opposite to a direction in which that original carrier signal was received.

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