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SpaceWDM research memorandum / Nov 2026

Build the engine. Not the telescope.

A new optical-communications company should have a plausible reason an established terminal manufacturer will buy from it.

Satellite laser terminals are an integration business. The telescope, beam steering, pointing and acquisition loops, spacecraft interfaces and qualification program are not optional accessories. An outsider proposing to replace all of that starts with an enormous disadvantage.

The subsystem hypothesis

Our initial target is narrower: an optical engine that aggregates high-speed data across multiple wavelengths and exposes testable interfaces to a terminal integrator. The engine could include source conditioning, electro-optic modulation, wavelength mux/demux, receive optics and monitoring. The exact split with coherent DSP must be negotiated with an OEM.

What would justify a purchase? Less power per verified net bit. Smaller mass or volume at the same measured performance. Lower qualification burden through stable interfaces. Repeatable assembly and test. Those are claims a customer can verify against a baseline.

OEM economics, not a space logo

We are not assuming that SpaceX, or any large constellation operator, will adopt an external terminal component. A credible first customer may instead be a smaller optical terminal manufacturer, a defense R&D partner, or an instrumentation team.

Our immediate commercial task is to obtain a customer-defined evaluation and build exactly enough hardware to pass or fail it. Until then, the product remains an engineering hypothesis.

These positions are engineering hypotheses, not hardware validation or customer specifications.Discuss this note ↗