IV
Laser comms & optical terminals
Inter-satellite laser links are becoming mandatory for LEO constellations; qualified terminal suppliers are scarce.
Inter-satellite laser links (ISLs) stopped being optional. The Space Development Agency's Proliferated Warfighter Space Architecture mandates optical crosslinks on every Transport and Tracking Layer satellite, and commercial LEO operators copied the design — a mesh of laser links is now the default. The constraint is supply: only a handful of vendors can build a space-qualified optical communication terminal (OCT) that closes a link against another vendor's terminal at industrial cadence. SpaceNews has called optical terminals a persistent bottleneck in the Pentagon's constellation buildout, and the SDA has qualified just four OCT suppliers to its standard: CACI, Tesat-Spacecom, Skyloom, and Mynaric (SatNews).
Who owns it
The defining fact for an investor is that the independent, tradeable merchant bench has been rolled up. Of the four SDA-qualified suppliers, two were acquired by US-listed companies in the last six months and one is a foreign subsidiary. Rocket Lab completed its acquisition of Mynaric on April 14, 2026 for roughly $155.3 million — a nominal cash payment plus 2,277,002 RKLB shares — pulling the CONDOR Mk3 line in-house. IonQ closed its purchase of Skyloom on January 28, 2026 (up to 3,909,267 IONQ shares), folding ~90 delivered SDA terminals into a quantum-networking story. Tesat-Spacecom — which won the 792-terminal MDA Space order for Telesat Lightspeed, the largest single OCT order to date — is a wholly owned Airbus subsidiary and not US-listed. That leaves CACI's CrossBeam as the only pure-play independent merchant terminal you can buy on a US exchange.
What breaks it
The choke is qualification and manufacturing yield, not physics. Mynaric is the cautionary tale: it delivered 130+ terminals to York Space Systems and Northrop Grumman, yet repeated production setbacks and revenue cuts drove it into a German StaRUG restructuring that wiped existing shareholders to zero before Rocket Lab bought the carcass. Cross-vendor interoperability is the second gate — terminals must close links against the SDA reference modem and each other; CACI was first to pass that interoperability test. Captive supply is the third structural fact: SpaceX (Starlink/Starshield), Amazon Kuiper, and increasingly the hyperscale operators build terminals in-house — though SpaceX has begun marketing its "Plug and Plaser" optical terminal to third parties — which limits the merchant market (Space Ambition).
What forces the reprice
The catalyst stream is the SDA tranche cadence plus the Space Force's terminal-standardization programs. SDA awarded $3.5 billion in Tranche 3 Tracking Layer contracts in December 2025 to Lockheed, Rocket Lab, Northrop, and L3Harris — every one of those 72 satellites carries OCTs. T2 Transport Layer launches are slated to begin around September 2026 (Beta-variant initial capability, a 2024 planning date subject to slip), with three to four OCTs per bus. The Enterprise Space Terminal Phase 2 — CACI, General Atomics, and Viasat — aims to set a standardized low-cost terminal for the MILNET mesh, and a down-select reprices the field.
Be honest about size and earliness
This is a real chokepoint attached to mostly tiny revenue. OCTs are a rounding error inside the listed names: CACI guided FY2026 revenue of $9.2–9.4 billion (raised to $9.3–9.5B in January 2026) — CrossBeam is a sliver, not a separately reported line. Mynaric's individual SDA orders ran ~$15M; its whole-company sale was $155M. Skyloom disappeared into IonQ for stock with no disclosed standalone economics. Telesat is a buyer of terminals, not a maker, and is burning cash on Lightspeed (Q1 2026 revenue fell 25%). So the honest framing: the supply chain is genuinely scarce and government-funded, but every clean tradeable exposure is either a sliver of a large prime (CACI, LHX), a small piece of a launch story (RKLB), a quantum-narrative wrapper (IONQ), or a captive giant (SPCX). Specialist outlets like Payload map the contracts; the edge here is naming exactly which listed entity now owns each qualified terminal line after the 2025–2026 roll-ups — and flagging that the merchant bench you could trade a year ago no longer exists independently.
Who owns the choke
CACI International Inc
CACI's CrossBeam free-space optical communication terminal is one of four SDA-qualified OCTs and was the first to complete SDA Transport Layer interoperability testing (Sept 2023), with on-orbit links demonstrated since 2021 and second-gen production at its Los Gatos and Orlando facilities. Selected for Space Force Enterprise Space Terminal Phase 2 (May 2025).
- Bull
- If laser crosslinks become mandatory, CACI's CrossBeam is one of four SDA-qualified OCTs, was first through interoperability testing, and won Enterprise Space Terminal Phase 2.
- Bear
- Optical-terminal work is a small line inside a large government-IT services firm, so the chokepoint exposure is diluted within CACI's broader revenue.
IonQ, Inc.
IonQ completed its acquisition of optical-terminal maker Skyloom Global on January 28, 2026 (up to 3,909,267 IONQ shares); Skyloom is an SDA-qualified OCT supplier that delivered ~90 terminals for SDA missions, including 42 flight-ready terminals to York Space Systems for the Tranche 1 Transport Layer.
- Bull
- If laser comms scale, IonQ's completed Skyloom acquisition adds an SDA-qualified OCT supplier that delivered ~90 terminals, including 42 flight-ready units to York.
- Bear
- Optical terminals are a small adjacency inside a quantum-computing company, so the chokepoint exposure is diluted within an unrelated, speculative core business.
L3Harris Technologies, Inc. (Aerojet Rocketdyne)
L3Harris's Aerojet Rocketdyne holds a contracted backlog of 150+ RL10 upper-stage engines (SLS, Vulcan, Atlas V) and produces 115,000+ solid rocket motors/year at Camden, AR, where a $215.6M expansion targets a six-fold large-SRM capacity increase. In January 2026 it agreed to sell 60% of its Space Propulsion & Power business (RL10, in-space, power, avionics) to AE Industrial Partners for $845M, retaining RS-25 and the SRM business.
- Bull
- If propulsion is the upstream choke, L3Harris's Aerojet Rocketdyne holds 150+ RL10 backlog and is six-fold expanding large-SRM capacity at Camden.
- Bear
- L3Harris is actively shrinking the exposure, agreeing to sell 60% of its space propulsion business for $845M, and space is tiny inside the prime.
Rocket Lab Corporation
Rocket Lab acquired SolAero in January 2022 for $80M; SolAero is one of only two US space-grade solar cell producers (the other is Boeing's Spectrolab). Q1 2026 revenue was $200.3M with a $2.2B backlog, and the company signed preliminary CHIPS Act terms for up to $23.9M (plus $25.5M from New Mexico) to expand compound-semiconductor output ~50%. In February 2026 it added silicon arrays targeting gigawatt-scale space data centers.
- Bull
- If a second reusable launcher and space-grade supply scale, Rocket Lab owns SolAero (one of two US cell makers), $2.2B backlog, Neutron, and Mynaric optics.
- Bear
- The reusable Neutron has not flown after a tank rupture, so much of the launch upside remains option value dependent on proving booster recovery.
SpaceX (Space Exploration Technologies Corp.)
SpaceX priced its IPO at $135 and debuted on Nasdaq June 12, 2026 under SPCX, closing its first session at $161.11 (up ~19%) in the largest IPO in history, making it one of the largest US public companies. Starlink, with thousands of satellites in orbit and ongoing launches, is the dominant single source of demand for space-grade solar power.
- Bull
- If launch stays one company's market, SpaceX flew ~50% of 2025 launches and 80%+ of mass, and Starlink is the dominant single source of solar-power demand.
- Bear
- The IPO floated only ~4.3% of shares, so SPCX trades on a sliver of float, and the 2025 Space segment ($4.1B) carried an operating loss.
Telesat Corporation
Telesat's Lightspeed LEO constellation will carry four 10Gbps optical inter-satellite links per satellite; prime contractor MDA Space selected Tesat to supply 792 optical terminals (the largest single OCT order to date), with first launches targeted late 2026 and full service slipping to Q1 2028. Q1 2026 revenue fell 25% amid heavy Lightspeed capex.
- Bull
- If laser crosslinks become mandatory, Telesat's Lightspeed anchors the largest single OCT order (792 Tesat terminals) with first launches targeted late 2026.
- Bear
- Q1 revenue fell 25% amid heavy Lightspeed capex, full service has slipped to Q1 2028, and the build carries substantial execution and funding risk.
Viasat, Inc.
Viasat was selected by U.S. Space Force Space Systems Command for Phase 2 of the Enterprise Space Terminal program (May 13, 2025) to prototype an optical laser crosslink terminal for the MILNET mesh, having completed the Phase 1 Preliminary Design Review for its free-space optical space terminal.
- Bull
- If laser crosslinks and ground assets reprice, Viasat won Enterprise Space Terminal Phase 2 to prototype a MILNET optical terminal atop a global ground network.
- Bear
- Viasat carries heavy leverage, so the equity is a deleveraging story as much as a chokepoint story, with optical terminals still only at prototype stage.
Catalyst calendar
- 2026-08-06Rocket Lab Q2 2026 earnings — first full quarter owning Mynaric/CONDORmediumFirst print to show how the acquired CONDOR optical-terminal line is being scaled and whether integration is on track given Mynaric's prior production failures.
- 2026-08-07CACI fiscal Q4/FY2026 resultsmediumCACI is the only listed independent merchant OCT maker; commentary on CrossBeam volume production ramp and EST Phase 2 is the cleanest read on terminal-supply economics.
- 2026-09-01SDA Tranche 2 Transport Layer (Alpha/Beta) launches beginmediumFirst T2TL launches put three-to-four optical terminals per satellite into orbit, validating qualified suppliers' delivery cadence and the cross-vendor link standard at scale.
- 2026-12-01SDA Tranche 3 Tracking Layer production milestones / next OCT demand wavemediumThe $3.5B Tranche 3 award (72 satellites across LMT/RKLB/NOC/LHX) drives the next large optical-terminal procurement cycle, repricing qualified-supplier demand.