Chip-Scale Yellow Laser Solve Green Gap for Shallow Underwater Optical Communication
Underwater optical communication faces a natural barrier known as the “green gap”. Traditional lasers cannot form stable transmission in seawater, limiting the development of underwater detection and submarine robot data transmission. The newly developed chip-scale yellow laser effectively solves the green gap problem and improves underwater communication stability.

Seawater absorbs most blue and red light waves. Only specific yellow-green band light can transmit farther in shallow seawater. Traditional semiconductor lasers lack stable yellow-band output, causing weak signal and short transmission distance.
Chip-scale yellow laser modules realize high-purity, stable yellow wavelength output. The light beam matches the seawater transmission window perfectly, greatly increasing underwater optical signal penetration distance and anti-attenuation capability.
Small size, low power consumption, and high stability make chip-scale yellow lasers easy to integrate into underwater sensors, ROVs, and marine monitoring devices.
This new laser technology significantly enhances the reliability of shallow sea optical communication, providing new technical support for marine exploration, underwater monitoring, and offshore engineering data transmission.
If you have any laser needs—whether standard modules or custom solutions—please feel free to email us. We look forward to being your reliable partner in the laser world.
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