VCSEL DBR & Facet Coating Patent Landscape 2026
VCSEL DBR and facet coating patenting is concentrated among a small group of photonics specialists and optical communications firms, with Excelitas Technologies Corp holding the largest position. The field has moved past its 2018 peak, with annual volume easing on a multi-year basis, signaling a maturing technology base rather than a growth frontier.
Excelitas leads a concentrated but multi-tiered field
Excelitas Technologies Corp is the clear ranking leader with 57 patent records, followed by Wells Fargo Bank NA and II-VI Delaware Inc each at 38 patent records, and Optical Communication Products Inc at 27 patent records.
The top five filers account for 30% of the combined total across the hundred largest filers, indicating a moderately concentrated upper tier with meaningful activity distributed across a long tail of specialized players and research institutions.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Excelitas Technologies Corp | 57 | |
| 2 | Wells Fargo Bank NA | 38 | |
| 3 | II-VI Delaware Inc | 38 | |
| 4 | Optical Communication Products Inc | 27 | |
| 5 | Finisar Corp | 22 | |
| 6 | Vixar Inc | 22 | |
| 7 | Lumentum Operations LLC | 21 | |
| 8 | Regents of the University of California | 21 | |
| 9 | Vertilite Co Ltd | 15 | |
| 10 | Inphenix | 14 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Cielo Communications Inc | 13 | |
| 12 | Avago Technologies General IP (Singapore) Pte Ltd | 12 | |
| 13 | Applied Optoelectronics Inc | 12 | |
| 14 | JDS Uniphase Corp | 10 | |
| 15 | Koninklijke Philips NV | 10 | |
| 16 | Honeywell International Inc | 9 | |
| 17 | Mitel Semiconductor AB | 9 | |
| 18 | CoreTek Inc | 9 | |
| 19 | Axsun Technologies Inc | 8 | |
| 20 | Motorola Inc | 8 |
The leader’s position — primarily built on H01S 5 stimulated-emission laser filings — reflects deep engineering investment in core VCSEL mirror stack and reflector design, giving Excelitas and close rivals a durable prior-art moat in this domain.
Patent records from the most recent 18–24 months are subject to publication lag and likely undercount activity in 2024–2025; trend readings for those years should be treated as provisional. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume peaked in 2018; laser physics dominates the IPC mix
The annual trend chart and IPC composition together show a field that spiked in 2018 and has since settled to a lower annual cadence, with H01S (lasers and stimulated emission) commanding the dominant share of the technology mix.
Annual filing trend
Activity surged to 55 patent records in 2018, then stepped down through 2019–2020 and has trended lower since. Figures for 2024 and 2025 are incomplete due to publication lag and should not be read as a further structural decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01S (lasers and stimulated emission) accounts for the overwhelming majority of IPC classifications, confirming that core laser physics — reflector design, cavity engineering — is the primary technical focus. Adjacent branches including H01L (semiconductor devices), G02B (optical elements), and G01B (dimensional measurement) are present but sparse, each representing a small fraction of the overall classification count.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Vertical-cavity surface-emitting laser with integr…
In some implementations, an optical device may comprise a base layer and an antireflective diffractive optical element (DOE) comprising an array of meta-atom unit cells on the base layer. In some implementations, the meta-atom unit cells may each comprise a first set of layers formed from one or more high index dielectric materials, wherein the first set of… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Vertical-cavity surface-emitting lasers with intra… | 285 |
| 2 | Metal spatial filter to enhance model reflectivity… | 274 |
| 3 | Organic vertical-cavity surface-emitting laser | 267 |
| 4 | VCSEL-based multi-wavelength transmitter and recei… | 196 |
| 5 | Tunable fiber Fabry-Perot surface-emitting lasers | 178 |
| 6 | Long wavelength, vertical cavity surface emitting … | 171 |
| 7 | Resonant reflector for improved optoelectronic dev… | 165 |
| 8 | Visible-wavelength semiconductor lasers and arrays | 165 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the structure means for R&D investment decisions
The combination of a past-peak filing trend, high H01S concentration, and a small group of dominant assignees creates a distinctive risk-reward profile for teams weighing entry or expansion in this space.
Field is in decline from a 2018 peak
The lifecycle evidence places this field in a Decline stage, with annual filings easing back from the 2018 peak of 55 patent records. Core DBR stack and facet-coating innovations appear largely codified. New entrants face a dense prior-art environment in the central H01S 5 cluster, making incremental differentiation difficult without targeting adjacent application branches.
Lifecycle: DeclineModerate upper-tier concentration; long tail active
The top five filers hold 30% of the hundred largest filers’ combined total, a moderate but not extreme concentration. Wells Fargo Bank NA appearing as a top-two holder reflects patent-collateral or trust arrangements rather than direct R&D, so the effective engineering concentration is somewhat higher among pure-play photonics firms. A long tail of smaller specialists and universities remains active, indicating the field has not fully consolidated.
Concentration: ModerateNo co-applicant collaboration data identified
The collaboration evidence set is empty for this topic, meaning no co-applicant filing patterns have been flagged in the current corpus. This is consistent with a field dominated by vertically integrated photonics firms that tend to protect process know-how internally. Research institutions such as the Regents of the University of California appear in the ranking independently rather than as co-filers.
Collaboration: Evidence pendingUS-centric filing; Europe and PCT secondary
The United States is the dominant jurisdiction with 279 patent records, followed by Europe (EPO) at 119 and WIPO (PCT) at 81. Canada and Australia hold meaningful secondary positions. China and Taiwan each show limited coverage at 16 and 14 records respectively, suggesting the established players have not yet mounted aggressive APAC prosecution strategies — a potential exposure as Asian VCSEL manufacturing scales.
Geography: US-ledGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Excelitas and Lumentum anchor the field; Vixar is a new entrant
The top positions are held by photonics specialists and optical-communications firms with deep H01S 5 portfolios. Momentum data show both leading commercial filers on a declining trajectory, while Vixar has entered recently.
Excelitas Technologies Corp
Excelitas holds 57 patent records, the largest position in the ranking. Its technology focus is concentrated in H01S 5 (laser and stimulated emission, 35 records), supplemented by H01S 3 (7 records) and MEMS-adjacent B81B 7 (2 records), indicating a broad VCSEL design and packaging remit. The most recent filing window shows a trend of –26%, consistent with a mature portfolio entering maintenance rather than expansion mode.
patent records: 57Lumentum Operations LLC
Lumentum holds 21 patent records and focuses heavily on H01S 5 (49 records at the classification level), with secondary coverage in H10D 64 (semiconductor devices, 6 records) and G01S 7 (radar and positioning, 2 records) — indicating growing interest in sensing-application VCSELs. Its recent filing trend is –17%, reflecting industry-wide normalization but a sustained presence in core laser-physics claims.
patent records: 21| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Lumentum Operations LLC | 15 | ▼ -17% |
| Excelitas Technologies Corp | 14 | ▼ -26% |
| Vixar Inc | 2 | ▲ new entrant |
Under-served branches adjacent to the dominant laser-physics core
Outside the dominant H01S cluster, several IPC branches show sparse coverage relative to their plausible technical relevance to VCSEL mirror and coating innovation, representing areas where prior-art density is low.
G01B · Dimensional measurement & interferometry
G01B carries only 19 patent records and a 2% share of IPC classifications, despite direct relevance to in-situ reflectance and layer-thickness metrology during DBR epitaxial growth. Axsun Technologies has 7 records here, suggesting the connection is recognized but underdeveloped by others. Teams combining optical coherence metrology with VCSEL process control could find relatively open filing terrain.
Search this in Eureka →G01S · Radar, sonar & positioning (LiDAR/sensing)
G01S accounts for only 15 patent records and 2% of IPC classifications, even though VCSEL-based LiDAR and 3D sensing are among the most active end-markets driving recent VCSEL volume growth. Lumentum and Vixar each show modest G01S coverage. The sparse filing density here relative to market activity suggests that sensing-application claims — particularly around beam-quality optimization via facet coatings — may be an underdeveloped area worth examining for freedom-to-operate and differentiation.
Search this in Eureka →How leaders differ across technology routes
Route coverage across the main technology branches in the current evidence set.
| Player | H01S 5 · Lasers & stimulated emission | H01S 3 · Lasers & stimulated emission | G02B 6 · Optical elements & systems | H01L 33 · Semiconductor devices | H01L 31 · Semiconductor devices |
|---|---|---|---|---|---|
| Honeywell International Inc | Strong · 28 | Moderate · 10 | Moderate · 9 | Moderate · 7 | Moderate · 7 |
| Lumentum Operations LLC | Strong · 49 | Absent | Absent | Absent | Absent |
| Excelitas Technologies Corp | Strong · 35 | Emerging · 7 | Absent | Absent | Absent |
| Axsun Technologies Inc | Strong · 30 | Emerging · 6 | Absent | Emerging · 4 | Absent |
| Motorola Inc | Strong · 20 | Moderate · 7 | Absent | Absent | Absent |
| Cielo Communications Inc | Strong · 17 | Absent | Emerging · 2 | Moderate · 4 | Moderate · 4 |
| Finisar Corp | Strong · 24 | Absent | Absent | Absent | Absent |
Frequently asked questions
The current corpus contains 239 patent families in scope for VCSEL DBR and facet coating technology globally.
Excelitas Technologies Corp leads with 57 patent records, ahead of Wells Fargo Bank NA and II-VI Delaware Inc, each at 38 patent records.
The evidence places the field in a Decline stage. Annual filings peaked in 2018 at 55 patent records and have eased since; the multi-year recent-window growth figure is -25%.
The United States is the primary jurisdiction with 279 patent records, followed by Europe (EPO) at 119 and WIPO (PCT) at 81. Coverage in China (16 records) and Taiwan (14 records) is comparatively limited.
H01S (lasers and stimulated emission) dominates with 612 IPC classification records. H01L (semiconductor devices) at 59, G02B (optical elements and systems) at 34, and G01B (dimensional measurement) at 19 are the next largest, but each is a small fraction of the H01S total.
G01B (dimensional measurement and interferometry) and G01S (radar, sonar, and positioning, including LiDAR sensing) each show only 15–19 patent records in this corpus, representing adjacent branches where prior-art density is relatively sparse compared with the dominant H01S core.
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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.
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