Spectral produces precisionDWDM lasers using patented FM comb technology that generates dozens to thousands of tightly spaced optical channels from a single semiconductor chip. The lasers offer sub‑Hz grid stability, up to 20 dBm total output power, and are feedback‑insensitive, eliminating the need for isolators and reducing calibration overhead.
Funding
€4.5M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
VFounders
Product
Problem
Data centers powering AI workloads require terabit‑scale optical links, but existing DWDM solutions rely on arrays of discrete lasers, isolators, and extensive calibration, which increase cost, power consumption, and system complexity. Scaling channel counts while maintaining sub‑Hz wavelength stability and low intensity noise is difficult with conventional laser architectures.
Solution
Spectral delivers precision DWDM lasers based on a patented FM comb technology that generates dozens to thousands of tightly spaced optical channels from a single semiconductor chip. The comb laser produces equidistant wavelengths locked to the ITU grid with sub‑Hz RF linewidth, eliminating the need for external isolators and reducing calibration overhead. Its broadband flat‑top spectrum (up to 4 THz) supports reconfigurable channel spacings from 10 GHz to 200 GHz, enabling flexible network designs. Total output power can reach 20 dBm across all channels, while the device exhibits best‑in‑class intensity‑noise performance. The architecture is built on mature semiconductor fabrication processes, ensuring high yield and cost‑effective mass production for terabit optical links in AI datacenters.
Target Audience
Primary customers are telecom operators, data‑center network engineers, and OEMs developing optical transceivers for AI‑focused terabit infrastructure, as well as system integrators requiring high‑density, low‑noise DWDM solutions.
Features
- FM comb laser cavity that generates >1000 wavelength‑specific channels from a single chip
- Equidistant channels locked to the ITU grid with 1 Hz RF linewidth (sub‑Hz grid stability)
- Flat‑top broadband output up to 4 THz, supporting reprogrammable spacing between 10 GHz and 200 GHz
- Feedback‑insensitive design (up to 0 dB tolerance) removes the requirement for optical isolators
- Total optical output power up to 20 dBm with best‑in‑class low relative intensity noise (RIN)
- Scalable architecture that maintains yield and calibration simplicity as channel count grows
- Rapid prototyping enabled by GPU‑accelerated laser dynamics modeling for custom module delivery