Methodology
Company pages and filings first, one source per value, a checked date on every row. This edition was researched on 2026-11-11.
Where the data comes from
We read each company’s own product pages and datasheets, its press releases and OFC or ECOC announcements, and its exchange filings (10-K, annual reports, HKEX and Shenzhen filings). Trade press such as Lightwave and OIF interoperability demo sheets fill gaps. Every record lists its sources with the date we accessed them, and every value in the table links to the source it came from.
What makes the list
A company is listed when it makes optical transceivers or a part a buyer has to qualify with them: PAM4 and coherent DSPs, lasers, optical engines, co-packaged optics or the wafers lasers grow on. Every record carries at least three sourced fields beyond its name and summary. Companies we could not source to that bar stay out until we can.
How to read the 1.6T status
Shipping means the company states revenue shipments or shipping product. Sampling means it states samples with customers. Demonstrated means a public demo or launch without a shipping statement. An empty status cell means no dated shipment, sampling or demonstration status was established. A catalog listing alone does not prove commercial availability.
How we verify
Each row shows the date we last checked it. A field is filled only when a source states it; when a company does not publish a figure, the cell stays empty. Revenue is the annual figure in the cited report, in its original currency and fiscal year. Reports cover different periods and business scopes; group revenue is not module revenue or a market-share ranking. Unverified headquarters and founding years are omitted.
Second-pass verification
The November 2026 expansion added module and component suppliers, directly re-read Huawei, Ayar Labs, Lightmatter, Arista and Credo sources, and checked Eoptolink and Accelink revenue in their CNINFO annual reports. O-Net’s catalog was readable over HTTP; its HTTPS certificate failed. T&S facts and Ligent’s historical name use indexed primary documents because direct retrieval failed. Blank fields remain unverified.
Corrections
Vendors and readers can send corrections to hello@opticaltransceiverlist.com with a public source. We update the row and its verified date. Featured placement is paid and labelled; it never changes a row’s data or its position in the sorted table.
Reuse
The dataset is free to reuse under CC BY 4.0 with a link to opticaltransceiverlist.com. Download it as CSV or JSON.
Field definitions
17 fields- Role
- Where the company sits in the optics supply chain: pluggable module maker, DSP and chip supplier, laser and component maker, network OEM that sells its own optics, contract manufacturer, optical I/O and co-packaged optics developer, or active electrical cable maker.
- Top speed Gb/s
- Highest module or chip application rate documented in the cited sources, in Gb/s (1600 = 1.6T). A historical catalog or announcement is not proof of today’s maximum or volume shipments.
- Speeds
- Data-center speed grades in the current portfolio, as the company lists them.
- 1.6T status
- Evidence for the 1.6T module or chip: volume/revenue shipping, customer sampling, or public demo/announcement. Blank means no dated status established; inspect the source date.
- Form factors
- Pluggable form factors offered (QSFP28, QSFP56, QSFP112, QSFP-DD, OSFP, OSFP-XD and so on), or the package type for chips and engines.
- LPO / LRO
- Offers linear pluggable optics (LPO) or linear receive optics (LRO), or the drivers, TIAs or DSPs built for them.
- CPO / optical I/O
- Offers co-packaged optics, optical engines for CPO, or optical I/O chiplets.
- Silicon photonics
- Identifies silicon photonics in a published product, design or demonstration. This flag does not establish volume shipments.
- Coherent (ZR)
- Offers coherent pluggables or coherent DSPs (400ZR, ZR+, 800ZR) for data center interconnect.
- Lasers
- Laser technologies the company makes or uses: VCSEL, EML, DML, CW lasers for silicon photonics, or tunable lasers.
- Reaches
- Reach classes offered, from SR (multimode, about 100 m) through DR, FR and LR (single-mode, 500 m to 10 km) to ZR (80 km and beyond).
- Named customers
- Hyperscaler or major customers the company or its filings name publicly.
- Revenue
- Reported annual revenue in the original currency and fiscal year. Figures may cover an entire group and periods differ; this is not an optics market-share ranking.
- Optics revenue share
- Share or amount of revenue from optical transceivers, datacom or the relevant segment, where a filing or earnings release states it.
- Listing
- Stock exchange and ticker, or Private.
- Manufacturing
- Countries where the company states it manufactures.
- Parent
- Owner company for subsidiaries and acquired businesses.