PIC Semiconductor Laser Patents: Who Leads, Filing Trends 2026
- Filing has cooled since a 2017 peak of 47 families, with the 2022 midpoint at 29 and no clear rebound through the most recent partial year.
- H01S (lasers) claim space overlaps heavily with G02B (optical elements), 341 and 404 records respectively, showing laser and waveguide/coupling claims are being filed together rather than separately.
- The most-cited records date to the early-2000s TxPIC filings, so citation weight in this corpus favours foundational transmitter architecture, not recent heterogeneous-integration work.
Filing growth compares 2021 (27 records) with 2024 (20) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 478 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks 478 patent families filed against photonic integrated circuit (PIC) semiconductor laser technology, drawn from records tagged with heterogeneous laser integration, on-chip lasers, III-V-on-silicon lasers and DFB laser structures, and classified under laser (H01S5/02, H01S5/12) and waveguide (G02B6/12) subclasses. The search string couples PIC and silicon-photonics terminology in the title/abstract with laser-integration language in the claims and description, so it isolates records where a laser is actually integrated onto or coupled with a photonic chip rather than every general silicon-photonics filing. Publication lags filing by roughly 18 months, so the tail end of the trend line is always an undercount of real activity.
The picture that emerges is a mature filing base built on transmitter-array and wavelength-division architectures, overlaid with a slower, more recent wave of heterogeneous III-V-on-silicon integration claims. Filing volume has not grown in step with silicon-photonics commercial interest, which is itself informative for anyone deciding where to file next.
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Filing trend and technology composition
Two views of the same 478-family dataset: filings by year, and the IPC subclasses those filings sit in. Together they show where claim density has built up and when it happened.
A 2017 peak followed by a flat-to-declining run
Filings rose to 47 in 2017, the peak of the window, then settled near the 2022 midpoint of 29 with no clear recovery since. Read the final one or two years as undercounted rather than as a genuine drop-off, given publication lag.
Laser and optical-element classes dominate, transmission classes trail
G02B (404 records) and H01S (341 records) anchor the dataset, confirming this is fundamentally a waveguide-plus-laser claim space. H04B and H04J transmission classes (183 and 139) and G02F modulation (132) show the laser claims are routinely bundled with system-level transport claims, while H01L (71), G01S (14) and B82Y (13) mark smaller, more specialised adjacent filings.
Shares are the percentage of the 478 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Photonic Integrated Circuit Semiconductor Laser with Eureka
This page is one run against one query. Ask Eureka your own question about photonic integrated circuit semiconductor laser and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this corpus
US20060062519A1 — Monolithic PIC chip with tunable optical components
An optical transmitter comprises a monolithic transmitter photonic integrated circuit (TxPIC) chip that includes an array of modulated sources formed on the PIC chip and having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different wavelengths. A wavelength selective combiner is formed on the PIC chip having a wavelength grid passband response approximating the wavelength grid of the standardized wavelength grid. The signal outputs of the modulated sources optically coupled to inputs of the wavelength selective combiner to produce a combined signal output from the combiner. A first wavelength tuning element coupled to each of thAbstract truncated as provided in the source record.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20030095737A1 | Transmitter photonic integrated circuits (TxPIC) and optical transport networks employing TxPICs | 294 |
| 2 | US20030095736A1 | Transmitter photonic integrated circuit (TxPIC) chip architectures and drive systems and wavelength stabiliza… | 281 |
| 3 | US20040033004A1 | Optical signal receiver photonic integrated circuit (RxPIC), an associated optical signal transmitter photoni… | 274 |
| 4 | US20050249509A1 | Coolerless photonic integrated circuits (PICs) for WDM transmission networks and PICs operable with a floatin… | 193 |
| 5 | US20030099018A1 | Digital optical network architecture | 189 |
| 6 | US20050100345A1 | Monolithic transmitter/receiver photonic integrated circuit (Tx/RxPIC) transceiver chip | 151 |
| 7 | US20040067006A1 | Transmitter photonic integrated circuit ( TxPIC) chips | 143 |
| 8 | US20080044128A1 | TRANSMITTER PHOTONIC INTEGRATED CIRCUITS (TxPICs) AND OPTICAL TRANSPORT NETWORK SYSTEM EMPLOYING TxPICs | 138 |
| 9 | US20080138088A1 | Monolithic transmitter photonic integrated circuit (TXPIC) having tunable modulated sources with feedback sys… | 122 |
| 10 | US6795622B2 | Photonic integrated circuits | 122 |
Citation counts reward age within a searched corpus — treat this table as a map of foundational influence, not of what matters for current freedom-to-operate.
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Browse MCP servers →What the numbers mean for a filing decision
Three patterns stand out once family counts, IPC composition and receiving offices are laid side by side.
Growth has stalled, not accelerated
The peak year for this dataset is 2017, and the 2022 midpoint sits well below it at 29. That is the opposite of the growth curve silicon-photonics commercial narratives would suggest, and it means the claim space has had years to settle rather than years to expand.
Laser and waveguide claims are filed together
The two largest subclasses are close in size and clearly overlapping in practice: most laser-integration filings also carry optical-element and coupling claims. A search or freedom-to-operate review limited to H01S alone will miss a large share of the relevant art.
Filing strategy is heavily US-first
The United States receives close to two-thirds of the filings tracked here, with Europe, WIPO/PCT and Canada trailing well behind. For companies planning defensive filings outside the US, the smaller receiving-office counts in the UK and Australia point to comparatively thinner prior art to clear.
Influence sits with early transmitter-array architecture
The most-cited records in this corpus describe transmitter and receiver PIC architectures and wavelength-stabilisation schemes from the early 2000s. Recent heterogeneous III-V-on-silicon integration work has not yet accumulated comparable citation counts, which is expected given how citation counts build over time rather than a sign that newer work is less significant.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to photonic integrated circuit semiconductor laser, with the prior art for and against each one.
Who holds the claim space
A small group of transmitter-PIC specialists and diversified semiconductor firms account for most of the co-filing activity, though recent-year momentum has cooled across the board.
Collaboration is limited and concentrated
Only seven co-assignee pairs appear in the dataset, and the strongest of them all involve the same corporate assignee paired with named individual inventors. That points to internal inventor teams rather than cross-company joint filing as the norm in this field.
Momentum has stalled across the leaderboard
Every one of the leading assignees shows zero filings in the most recent year tracked. Given the roughly 18-month publication lag, this understates true recent activity, but the flat 2022 midpoint suggests the slowdown predates the reporting gap.
A long-established, moderately concentrated field
The ranking is led by transmitter-PIC and optical-networking specialists alongside larger diversified semiconductor and telecom firms, with a long tail of single- or few-filing entrants behind them. That shape is typical of a technology with an established core group and periodic entry from adjacent industries.
| Assignee | Recent year | YoY |
|---|---|---|
| Infinera Corporation | 0 | — |
| MACOM Technology Solutions Holdings, Inc. | 0 | — |
| Finisar Corporation | 0 | — |
| Lumentum Operations LLC | 0 | — |
| Intel Corporation | 0 | — |
| Marvell Asia Pte Ltd. | 0 | — |
| AT&T Corp. | 0 | — |
| ROCKLEY PHOTONICS LTD | 0 | — |
Where to take this from here
The trend and assignee data point to specific next steps depending on whether the goal is freedom-to-operate, portfolio strategy, or scouting for acquisition targets.
Run a combined G02B/H01S clearance search
Because laser and waveguide claims overlap so heavily in this corpus, a clearance search scoped to H01S alone will understate the relevant art. Widen the query before relying on it for a filing decision.
Explore the full claim set in EurekaTrack the post-2022 filers, not just the historic leaders
The top-cited records are two decades old; the assignees with recent filings, even at low volume, are a better guide to where active development is happening now.
See recent filers in EurekaCheck the under-claimed sub-areas before drafting
Thermal tuning, gain-region bonding and wavelength-selective combiner design carry fewer filings than the core laser claims — worth a dedicated search before assuming the space is clear.
Search white space in EurekaCommon questions about PIC semiconductor laser patents
In this dataset, it is a patent family whose title or abstract references a photonic integrated circuit, PIC or silicon photonics, and whose claims or description cover heterogeneous laser integration, on-chip lasers, III-V-on-silicon lasers, or DFB laser structures. The classification is further narrowed to laser-specific IPC codes (H01S5/02, H01S5/12) and the waveguide/coupling code G02B6/12. This combination excludes general silicon-photonics filings that do not touch laser integration, and excludes discrete laser patents that are not chip-integrated.
The 2017 peak of 47 families in this corpus reflects a wave of transmitter-architecture and wavelength-division filings that had built up through the early 2010s. Filing volume then settled to a lower, flatter level by the 2022 midpoint of 29, which suggests the core architectural claim space had already been substantially staked out. The most recent one to two years in any such trend are always undercounted because publication lags filing by about 18 months, so treat the apparent decline near the data cut-off with caution.
The leaderboard in this dataset is topped by transmitter-PIC and optical-networking specialists, with additional volume from larger diversified semiconductor and telecom firms. All of the leading assignees show zero filings in the most recent tracked year, which is consistent with the broader flattening trend rather than a sign any single company has exited. A long tail of smaller filers sits behind the leaders, typical of a field with an established core and periodic new entrants.
The dataset shows dense claim coverage in the core H01S/G02B laser-and-waveguide space, but comparatively thinner coverage in specific adjacent areas: thermal tuning of monolithic wavelength grids, III-V-on-silicon gain-region bonding schemes, on-chip wavelength-selective combiner design, and coolerless temperature compensation. These are not unclaimed, but they carry fewer records than the core laser claims and are worth a dedicated search before assuming freedom to operate. High density in the core does not mean these adjacent branches are equally occupied.
Citation counts in a searched corpus like this one systematically favour older filings, because they have had more years to accumulate citations from later patents. The most-cited records here date to the early 2000s and describe foundational transmitter and receiver PIC architectures, not recent heterogeneous-integration work. Use citation rank to identify foundational claims that later filings had to build around, not as a measure of which technology is most commercially relevant today.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.