Distributed sensing required continuous monitoring because these sensors are multiplexed with various sensors on one line of an optical fiber and must have the durability to harsh environments, and also are not affected by electromagnetic effects.

In the case of Distributed Acoustic Sensing (DAS), optical fibers (most often standard telecom fibers) are used to sense acoustic signals.

DenseLight light source provides narrow spectral linewidth, excellent SMSR, power stability, and a very highly wavelength stable laser output. They are available as a standard product for O band, but can be customized on request over a wide wavelength ranges across the E, S, C and L bands with various options to meet your specific needs.

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Narrow Linewidth Laser (NLL)

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Narrow Linewidth Laser with Driver

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