Distributed Acoustic Sensing (DAS) transforms standard fiber-optic cables into continuous sensors that can detect vibrations and acoustic events over many kilometers. In subsea environments, DAS enables real-time monitoring of offshore infrastructure such as power cables, telecom links, pipelines, and wells, helping operators detect disturbances and monitor environmental activity.
A key factor in DAS performance is the laser. High-stability, narrow-linewidth fiber lasers provide the low noise and coherence needed for long sensing ranges, high sensitivity, and reliable long-term operation. Koheras single-frequency fiber lasers support accurate and robust DAS measurements for demanding subsea monitoring applications.

Further Information

If you are working with distributed acoustic sensing (DAS), coherent transceivers, long-haul subsea cables, or fiber communication network monitoring, visit Hamamatsu Photonics A/S at booth 2095. You can explore the Koheras single-frequency fiber lasers that offer ultra-low noise, unmatched stability, and reliable mode-hop-free operation. These lasers are available across multiple wavelength ranges, including the C- and L-band, and are designed for demanding precision applications. The range combines robust, low-noise seed lasers with power amplification, frequency conversion, and flexible multi-channel integration in one configurable ACOUSTIK system. Ask our experts about the right configuration for your sensing application at booth 2095.