Laser Diode Photonic Integration Patent Landscape
The laser diode photonic integration patent space is moderately concentrated, with Aurora Operations leading a field dominated by US filings and Japanese incumbents. Annual volume peaked in 2021 and has since eased, placing the field in a post-peak stage, though adjacent branches in sensing, transmission, and optical control remain comparatively sparse.
Aurora Operations leads a field shaped by Japanese incumbents and US-centric filing
Aurora Operations holds the top position among ranked applicants, followed by Panasonic Holdings and Nippon Telegraph & Telephone. The top five filers collectively account for roughly one-third of the hundred largest filers’ combined total, indicating moderate-to-high concentration at the apex with a long tail of single-digit contributors.
A clear tier gap separates the top three applicants from the remainder of the ranked field. Aurora Operations and Panasonic Holdings maintain a lead of several patent records over the mid-tier cluster, which itself fragments quickly into a large group of near-equal smaller filers from diverse geographies and sectors.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Aurora Operations Inc | 15 | |
| 2 | Panasonic Holdings Corporation | 11 | |
| 3 | NIPPON TELEGRAPH & TELEPHONE CORP | 10 | |
| 4 | Huawei Technologies Co Ltd | 8 | |
| 5 | Lightwaves 2020 | 6 | |
| 6 | Furukawa Electric Co Ltd | 6 | |
| 7 | Advanced Micro Foundry Pte Ltd | 5 | |
| 8 | Telefonaktiebolaget LM Ericsson (publ) | 5 | |
| 9 | National Institute of Advanced Industrial Science and Technology (AIST) | 5 | |
| 10 | NEC Corporation | 5 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Mitsubishi Electric Corporation | 4 | |
| 12 | Intel Corporation | 4 | |
| 13 | Opnext Japan Inc | 3 | |
| 14 | NOKIA SOLUTIONS & NETWORKS OY | 3 | |
| 15 | Oclaro Japan Inc | 3 | |
| 16 | ELECTRONICS & TELECOMM RES INST | 3 | |
| 17 | LNL Technologies Inc | 3 | |
| 18 | Thornton Robert L | 2 | |
| 19 | Nexus Photonics Inc | 2 | |
| 20 | Oracle International Corporation | 2 |
The leaders’ positions imply that core laser diode integration architecture is well-covered by a handful of players, reducing freedom-to-operate in mainstream integration routes. New entrants are most likely to find room in adjacent application domains rather than in the central H01S laser-device class.
Filing data for the most recent 18–24 months is subject to publication lag and will undercount actual activity; treat recent-year figures as a floor rather than a ceiling. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2021 filing surge followed by moderation, with laser physics dominating the technology mix
The annual trend chart reveals an irregular but ultimately declining trajectory after a pronounced 2021 peak, while the technology composition chart shows H01S laser and stimulated-emission classes commanding the largest share of coverage.
Annual filing trend
Filings rose from 6 in 2017 to a peak of 17 in 2021, then contracted sharply in 2022–2023 before a partial rebound in 2024. The 2025 and 2026 bars are materially incomplete due to publication lag and should not be read as a continued decline. The multi-year window still reflects a net-negative recent growth rate, consistent with a post-peak maturity stage.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01S (Lasers & stimulated emission) is by far the most represented class, reflecting the core subject matter. G02B (Optical elements & systems) is the second-largest branch, pointing to waveguide and coupling integration work. H04B (Transmission), G01S (Radar/sensing), and G02F (Optical control & modulation) each occupy smaller but meaningful shares, signaling multi-application reach beyond pure optical communications.
↗ 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.
O-band silicon-based high-speed semiconductor lase…
The present invention proposes an O-band silicon-based high-speed semiconductor laser diode for optical communication and its manufacturing method, by using different buffer layers to form the growth surface of InP material with low dislocation density; N—InAlGaAs is used instead of conventional N—InAlAs electron-blocking layer in the epi-structure to… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Self-aligned transition from ridge to buried heter… | 114 |
| 2 | Precisely controlled chirped diode laser and coher… | 88 |
| 3 | Bilithic composite for optoelectronic integration | 86 |
| 4 | Multiwavelength semiconductor laser device with si… | 74 |
| 5 | Optical transmitter and optical signal transmitter | 71 |
| 6 | Hybrid optical integrated circuit | 62 |
| 7 | Optical circuit for wavelength multiplexing commun… | 60 |
| 8 | External gain element with mode converter and high… | 59 |
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 competitive structure means for R&D investment decisions
The combination of post-peak lifecycle, moderate concentration, active. Japan–US collaboration, and heavy US filing jurisdictional skew shapes the strategic calculus for both incumbents and new entrants.
Post-peak field: core architecture is maturing
The lifecycle stage is classified as Decline, driven by annual filings easing back from the 2021 peak. Core laser diode integration architectures in H01S are densely covered, suggesting that incremental improvements in mainstream coupling and ridge-waveguide structures face crowded prior art. R&D investment is better directed toward adjacent application branches or next-generation integration platforms where coverage is thinner.
Lifecycle: DeclineTop five hold roughly a third of the hundred largest filers’ output
The top five applicants — Aurora Operations, Panasonic Holdings, Nippon Telegraph & Telephone, Huawei, and Lightwaves 2020 — together account for roughly 34% of the hundred largest filers’ combined patent records. This moderate concentration means the field is not monopolized, and mid-tier players retain meaningful footholds. However, the leader Aurora Operations holds a noticeable edge, and any challenger strategy must account for its dense coverage of laser-sensing integration.
Top-5 share: 34%NEC–Fujitsu and NEC–AIST are the most active co-filing pairs
The strongest collaboration links observed are NEC with Fujitsu and NEC with the National Institute of Advanced Industrial Science and Technology, each pair recording 5 joint filings. A secondary link exists between Ours Technology and Aurora Operations with 4 joint filings. Nippon Telegraph & Telephone and NTT Inc. show a single co-filing. These Japan-anchored consortia suggest that system-level integration work continues to be pursued through public–private partnerships in Japan, an ecosystem pattern that newcomers may find difficult to replicate quickly.
Co-filing: NEC anchoredUS jurisdiction dominates; Asia and Europe are secondary but present
The United States is the primary filing jurisdiction, followed at a significant distance by Japan and Europe (EPO). WIPO PCT filings indicate that a subset of applicants are pursuing international protection beyond their home markets. China’s filing count is low relative to Chinese applicants such as Huawei appearing in the ranking, which may reflect a strategic choice to concentrate protection in end-market jurisdictions. Australia and Canada round out a small but non-trivial set of secondary territories.
Lead office: United StatesGo 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.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| NEC Corporation | Fujitsu Ltd | 5 |
| NEC Corporation | National Institute of Advanced Industrial Science and Technology (AIST) | 5 |
| Ours Technology LLC | Aurora Operations Inc | 4 |
| Nippon Telegraph & Telephone Corporation | NTT Inc | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Aurora Operations leads in sensing integration; Panasonic anchors storage and laser physics
The two largest filers diverge significantly in technology emphasis: Aurora Operations focuses on lidar and radar-adjacent sensing applications of integrated laser diodes, while Panasonic Holdings concentrates on laser physics and optical storage. Both are classified as new entrants in the recent filing window, indicating their positions were built rapidly.
Aurora Operations Inc
Aurora Operations holds the top rank with 15 patent records. Its technology focus centers on H01S 5 (semiconductor lasers), G01S 7 (radar signal processing), and G01S 17 (lidar), clearly reflecting its autonomous-vehicle sensor stack. Its recent filing trend is classified as a new entrant, meaning its corpus position was established in the recent window from a negligible prior base — a concentrated, fast-built portfolio rather than a decades-long accumulation.
patent records: 15Panasonic Holdings Corp
Panasonic Holdings is the second-ranked applicant with 11 patent records, with its technology emphasis split across H01S 5 (semiconductor lasers), G11B 7 (optical storage), and H01S 3 (gas and solid-state lasers). This broader spread across laser types and storage reflects a more diversified photonic portfolio compared to Aurora’s sensing-specific focus. Panasonic’s momentum in the recent window is not flagged in the evidence, suggesting a more gradual, incumbent-style accumulation.
patent records: 11| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Ours Technology LLC | 4 | ▲ new entrant |
| Nippon Telegraph & Telephone Corporation | 1 | ▲ new entrant |
| Aurora Operations Inc | 5 | ▲ new entrant |
Sensing, transmission, and optical modulation are comparatively under-served branches
The dominant H01S class captures the bulk of coverage, leaving several adjacent IPC branches with relatively sparse filing density. Three branches stand out as observations worth monitoring for engineers considering differentiated entry points.
G01S · Radar, sonar & positioning (lidar integration)
G01S accounts for 20 patent records against a corpus where H01S alone holds 119, making it a comparatively thin branch despite its clear relevance to integrated laser diode lidar modules. Aurora Operations’ presence here is notable but concentrated in a narrow sub-class. For teams working on FMCW lidar or coherent ranging, the sparse prior-art density in G01S sub-classes beyond G01S 7 and G01S 17 may offer differentiated filing space — though Aurora’s rapid portfolio build means freedom-to-operate analysis around its specific claims is essential before entry.
Search this in Eureka →G02F · Optical control & modulation
G02F (optical control and modulation) holds only 15 patent records in this corpus, a comparatively low share for a branch directly relevant to electro-optic modulators co-integrated with laser diodes. NEC’s G02F 1 work is the clearest incumbent signal, but the overall density is low. Co-integration of modulators with on-chip laser sources is a technically demanding but commercially important capability for coherent optical transceivers and programmable photonics; the sparse coverage suggests that organizations with waveguide modulator expertise could build a differentiated position here.
Search this in Eureka →How leaders differ across technology routes: sensing vs. communications vs. storage
Route coverage across the main technology branches in the current evidence set.
| Player | H01S 5 · Lasers & stimulated emission | G02B 6 · Optical elements & systems | H01S 3 · Lasers & stimulated emission | H04B 10 · Transmission (general) | G01S 7 · Radar, sonar & positioning |
|---|---|---|---|---|---|
| Ours Technology LLC | Strong · 13 | Strong · 7 | Absent | Absent | Strong · 11 |
| Aurora Operations Inc | Strong · 7 | Strong · 6 | Absent | Absent | Strong · 7 |
| Nippon Telegraph & Telephone Corporation | Strong · 8 | Strong · 9 | Absent | Emerging · 1 | Absent |
| Lightwaves 2020 | Strong · 6 | Strong · 6 | Strong · 6 | Absent | Absent |
| Panasonic Holdings Corporation | Strong · 10 | Absent | Strong · 6 | Absent | Absent |
| Huawei Technologies Co Ltd | Absent | Strong · 8 | Absent | Strong · 8 | Absent |
Frequently asked questions
The corpus covers 61 patent families. This is the foundation count from which applicant rankings, trends, and technology composition are derived.
Aurora Operations Inc holds the top position with 15 patent records among the ranked applicants. Its portfolio is heavily oriented toward lidar and radar-adjacent sensing applications of integrated laser diodes, consistent with its autonomous-vehicle business.
The field is classified as Decline, reflecting annual filings easing back from a 2021 peak. The most recent 18–24 months of data are subject to publication lag, so the latest bars in the trend chart represent a floor rather than a definitive reading.
The United States is the dominant filing jurisdiction, followed by Japan, Europe (EPO), and WIPO PCT. China, Australia, Canada, Germany, and South Korea each account for a small number of filings, indicating that protection is concentrated in the primary end markets of the leading applicants.
G01S (radar/lidar/positioning), G02F (optical control and modulation), H04B (transmission), H01L (semiconductor devices), and H04J (multiplex communication) each have meaningfully lower filing counts than the dominant H01S class. These branches represent adjacencies where coverage is thinner, though entry viability depends on specific sub-class analysis and freedom-to-operate review.
NEC and Fujitsu, and separately NEC and the National Institute of Advanced Industrial Science and Technology (AIST), are the most active co-filing pairs with 5 joint filings each. Ours Technology and Aurora Operations recorded 4 joint filings. These patterns reflect Japan’s tradition of public–private photonics research consortia.
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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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