๐ช๐ฒ๐ฒ๐ธ๐ฒ๐ป๐ฑ๐ช๐ฎ๐๐ฒ๐น๐ฒ๐ป๐ด๐๐ต | ๐ ๐ผ๐ฑ๐ฒ๐ฟ๐ป ๐๐ผ๐ต๐ฒ๐ฟ๐ฒ๐ป๐ ๐ข๐ฝ๐๐ถ๐ฐ๐ ๐ญ๐ฌ๐ญ
Most engineers think ๐ฐ๐ฌ๐ฌ๐ and ๐ด๐ฌ๐ฌ๐ are โjust faster wavelengths.โ
Theyโre not.
Modern coherent optics didnโt win because of speed, they won because they moved the intelligence from the fiber to the DSP.
๐๐ฒ๐ฟ๐ฒโ๐ ๐๐ต๐ฒ ๐๐๐ฟ๐ฎ๐๐ฒ๐ด๐ถ๐๐ ๐๐ถ๐ฒ๐:
๐๐ฎ๐๐ฑ ๐ฟ๐ฎ๐๐ฒ sets how many symbols you can push per second
๐ ๐ผ๐ฑ๐๐น๐ฎ๐๐ถ๐ผ๐ป ๐ฑ๐ฒ๐ฝ๐๐ต (๐ค๐๐ ) sets how many bits each symbol carries
๐๐ฆ๐ฃ corrects impairments that older networks relied on the fiber to solve
๐ข๐ฆ๐ก๐ฅ becomes the ultimate limiter, not the transponder vendor
๐๐ถ๐ฏ๐ฒ๐ฟ ๐พ๐๐ฎ๐น๐ถ๐๐ now dictates feasibility more than equipment choice
๐๐ป ๐๐ต๐ผ๐ฟ๐:
Coherent optics rewrite the rules of optical transport.
Weโre no longer limited by the glass, weโre limited by physics, impairments, and OSNR.
And in APAC, where long EDFA-only spans and mixed G.652/G.655 fibers are common,
๐ฐ๐ฌ๐ฌ๐ is the workhorse.
๐ด๐ฌ๐ฌ๐ is the specialist > only viable on short, clean, modern metro paths.
This is why coherent evolution matters:
Itโs not about hitting higher speeds.
Itโs about extracting more life out of the fibers we already have.
