Two new Verdi G lasers from Coherent Inc. offer single longitudinal mode (SLM) output. The lasers deliver a linewidth of less than 5 MHz, which corresponds to a coherence length of tens of meters. They are offered with a choice of 2 and 5 W of output power at 532 nm.
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. This construction provides high stability and reliability and enables single-frequency OPSLs to deliver mode hop-free output over hours of continuous operation.
Verdi G SML lasers are targeted at applications where narrow linewidth and/or long coherence length are critical requirements.
Coherent Inc., www.coherent.com