More than 100m Coherence Length Laser

Coherence length is defined as the distance over which the laser beam can travel without experiencing a phase discontinuity.  This is a critical parameter in applications such as holography and interferometry where beams may be required be split with each leg going a long distance before being recombined.   The coherence length is directly related to the linewidth of the laser. As a result, long coherence length lasers are almost exclusively single mode.   Here at RPMC Lasers, we offer a wide range of diode-pumped solid-state (DPSS) lasers with a coherence length of more than 100m.

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