2 ms·
BPSK and QPSK are modulation schemes, but the optical amplifiers used don't demodulate and re-modulate at all, so the modulation used is irrelevant.
by lxgr 2y ago
BPSK and QPSK are modulation schemes, but the optical amplifiers used don't demodulate and re-modulate at all, so the modulation used is irrelevant.
- RoderickBeck 2y agoCorrect. Modulation is encoding the bits in different aspects of the light wave. The better the modulation scheme, the more expensive is the division multiplexing equipment.