Physics / mechanism
Competitive landscape
Key competition comes from Fabry-Pérot lasers (cheap, multimode, adequate for short-reach), VCSELs (lower cost, wafer-testable, dominate datacom ≤10 km), and external-cavity lasers (narrower linewidth, <100 Hz, but bulky/expensive). Emerging coherent thin-film lithium niobate and silicon-nitride-integrated laser sources challenge DBR in linewidth-sensitive sensing.
Companies using
Connected ideas
Sources
Frontier (open questions)
- To be added.