23 September 2025

Athermal 100mW CW DFB QD Laser

We are excited to introduce our next-generation O-band continuous-wave (CW) distributed feedback (DFB) laser, specifically engineered for seamless integration into Silicon Photonics and thin-film lithium niobate (TFLN) based high-speed optical transceivers. Our laser design eliminates the need for an optical isolator and a thermoelectric cooler (TEC).

Built upon Innolume’s proprietary QD InAs/GaAs platform, this new DFB laser offers exceptional performance characteristics crucial for advanced optical modules, including mode-hop-free operation and robust resistance to optical back reflections. Furthermore, it boasts superior reliability, mitigating the early-life failures often associated with quantum well (QW) counterparts.

The laser operates in a single frequency regime from minus 10°C to 110°C, consistently delivering an optical power of 100 mW at a fixed drive current of 330mA and Power Conversion Efficiency (PCE) above 20% across a broad temperature range of 0°C to 75°C, thereby eliminating the requirement for a current control loop.

These features make it ideally suited for 800 Gbps, 1.6 Tbps, and next-generation 3.2 Tbps DR8 and 2×FR4 optical modules, with the added benefit of isolator-free integration when the optical path is carefully optimized.

Athermal 100mW CW DFB QD Laser

Feel free to contact us for detailed specifications.

Meet us at ECOC 2025 Booth C4136 to learn more about this development and many others we are bringing to market.

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