Coherent Introduces High Power Single Frequency OPSLs

Santa Clara, Calif., (PresseBox) - Two new Verdi(TM) G lasers from Coherent Inc., (Santa Clara, CA) (Nasdaq: COHR) are the first of this product family to offer single longitudinal mode (SLM) output. Specifically, the new Verdi G SLM-Series deliver a linewidth of < 5 MHz, which corresponds to a coherence length of tens of meters. They are offered with a choice of 2 and 5 Watts of output power at 532 nm, with SLM output expected at other wavelengths soon.

Verdi G SLM lasers are based on optically pumped semiconductor laser (OPSL) technology, which is characterized by low noise, high electrical efficiency, and a small platform. Additionally, this construction provides higher stability and greater reliability than other visible laser types. This enables single frequency OPSLs to deliver mode hop-free output over hours of continuous operation.

Verdi G SLM lasers are targeted at applications where narrow linewidth and/or long coherence length are critical requirements. These include various types of interferometry and holography, especially those involving long path lengths. Verdi G SLM lasers are also ideal for atom cooling and trapping, the former, in particular, requiring a laser with narrow linewdith and high output stability.

Founded in 1966, Coherent, Inc. is a Russell 2000 Index company and a world leader in providing laser-based solutions to the commercial and scientific research markets. Please direct any questions to Brandon Morioka, product line manager, at (408) 764-4373. For more information about Coherent, including product and financial updates, visit our website at

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