Coherent Testing Shifts Toward 800G Data Center Interconnects
Hyperscale operators upgrading data center interconnect speeds toward 800G and beyond require coherent optical test instruments capable of characterizing signal quality across multiple wavelengths simultaneously, a capability legacy single-wavelength equipment cannot provide. Major cloud providers in North America and East Asia have adopted coherent testing as the default requirement for new interconnect deployments, and mid-tier data center operators are following as instrument cost declines with production scale. This shift is reshaping which vendors win design slots, favoring companies with proven coherent signal analysis depth over those still defending legacy single-wavelength instrument franchises built over previous decades.
Market Impact: Adds 2.1 billion in interconnect demand








