IN Brief:
- NewPhotonics NPG102 photonic ICs for 800G and 1.6T are now in volume shipment.
- Tower's PH18DA platform integrates InP lasers, amplifiers, modulators, and detectors with silicon photonics.
- CPX-MSA compliant NPC505 chipsets for 6.4T near-packaged optics are planned for volume production in the first half of 2027.
Tower Semiconductor and NewPhotonics have begun high-volume shipments of laser-integrated photonic ICs for 800G and 1.6T optical links, moving Tower’s PH18DA silicon-photonics platform from process enablement into production hardware for AI interconnects.
The NewPhotonics NPG102 devices use 200G-per-lane architectures and combine silicon photonics with heterogeneously integrated indium phosphide components. The companies say the production devices support optical implementations spanning pluggable transceivers and near-packaged optics, including FRO, LRO, LPO, XPO, and socket-pluggable NPO architectures.
A second device family, the NPC505 chipset, is intended for 6.4T near-packaged optical systems and is scheduled to enter volume shipment in the first half of 2027. The products are being developed around the CPX-MSA framework, placing the optical engine closer to switching or compute silicon while retaining a socket-pluggable form intended to preserve serviceability.
PH18DA integrates indium phosphide lasers, semiconductor optical amplifiers, modulators, and photodetectors with silicon photonic structures on the same photonic IC. That reduces the number of separately packaged optical elements required around the device, although it transfers more of the manufacturing challenge into wafer processing, heterogeneous integration, test, and package yield.
The distinction matters because optical-module production has traditionally involved tight alignment between discrete lasers, modulators, detectors, fibres, and electronic ICs. Integrating more of those functions can remove some individual assembly operations, but failures become more expensive when multiple optical functions have already been combined in the same die or package.
Tower’s PH18DA ecosystem has been moving steadily towards that manufacturing stage. OpenLight added PH18DA support to Cadence-based photonics design flows in August, giving engineers access to process models and design rules for devices using integrated active components. The NewPhotonics announcement adds a volume-production milestone to that earlier design enablement.
A photonics process only becomes commercially useful when designs can move repeatedly from simulation into wafer fabrication, optical test, packaging, and assembly. A process design kit can reduce design-rule errors and improve predictability, but volume shipment demonstrates a different capability: keeping optical behaviour and manufacturing yield within usable limits across production wafers and assembled devices.
Near-packaged optics is attracting attention as electrical connections encounter higher loss and power consumption at increasing data rates. Moving optical conversion closer to a switch ASIC shortens the fastest electrical paths, but it also places optical devices in a denser thermal and mechanical environment.
Fully co-packaged optics pushes the optical engine closer again, potentially reducing electrical reach further, but replacement becomes more difficult if an optical element fails. Socket-pluggable near-packaged approaches attempt to retain some field serviceability while moving the optical interface inward from the front panel.
The NPG102’s 200G-per-lane architecture also raises bandwidth density without relying solely on a larger number of parallel fibres. Higher lane rates, however, reduce signal margin and increase the demands placed on modulators, photodiodes, electronic drivers and receivers, fibre coupling, and package parasitics.
Laser integration introduces another set of trade-offs. An external laser can be thermally separated from the photonic engine and replaced independently, while heterogeneous on-chip integration reduces optical coupling between separate packages. The preferred architecture depends on efficiency, reliability, manufacturing yield, thermal behaviour, and service requirements rather than integration density alone.
Tower says NewPhotonics is the first customer to bring heterogeneously laser-integrated optical engines on PH18DA into high-volume production. Neither company has disclosed shipment volumes or the OEM customers using the finished systems, so the scale of current output cannot be quantified beyond the stated production status.
The manufacturing milestone is nevertheless significant. NPG102 devices are now shipping for 800G and 1.6T systems, while the 6.4T NPC505 programme has a defined first-half 2027 volume target. The next test is whether those integrated optical engines can maintain yield, power efficiency, and reliability as bandwidth and packaging density continue to rise.
