Narrow-linewidth lasers bring low-noise answer
Two new designs of narrow-linewidth semiconductor laser offer high-performance light sources for use in sensing and metrology.
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Two designs of frequency-locked semiconductor laser have been developed that deliver high-purity light with an ultra-narrow linewidth and exceptionally low noise. The lasers, which operate in the near-infrared or visible regions, look set to prove useful as compact, high-quality coherent optical sources that suit chip-scale integration. They suit applications such as LIDAR, atomic clocks, optical gyroscopes, metrology and microwave photonics.
