🧠 Food for thought

Implications, context, and why it matters.

Lightspeed’s solderable optics lack public performance detail vs pluggables or CPO

• Lightspeed Photonics pitches solderable optical interconnects that attach to PCBs as an alternative to pluggables or co-packaged optics. No public samples, pilots, or detailed benchmarks appear in the source 1.
• Broadcom’s Bailly CPO platform delivers 5.5W per 800Gbps port, as Meta ran 1 million device hours with zero link failures 2. Power per 100Gbps lane drops by 65% versus pluggables 2.
• A lack of bandwidth density, energy per bit, and thermal data blocks a fair comparison. It is unclear if the solderable path can match CPO’s about 3x power cut versus pluggables or Broadcom systems shipping at 51.2 terabits per second (Tbps) 2.

Electronics makers can track pilots to time SMT-ready optical assembly plans

• Pilot wins with hyperscalers (large cloud providers) or original design manufacturers (ODMs) would signal progress. Electronics manufacturing services providers and outsourced assembly firms could tune surface-mount technology (SMT) lines for optical assembly as CPO deployments grow, for example Broadcom’s Bailly has shipped to hyperscalers 2.
• Test gear makers could build validation tools for solderable optical interconnects if momentum builds. Pluggable test flows may not fit engines that mount permanently and need wafer or board level checks.
• Investors can scan Cignal AI, an optical networking industry analyst, for a roster of optical component startups 1. Celestial AI is a photonics startup with hyperscaler designs for its Photonic Fabric, an optical interconnect architecture 1. Ayar Labs is a silicon photonics company focused on in-package optical I/O with Nvidia as an investor 1. Lightspeed’s solderable angle still lacks public validation against these peers.