Two new Verdi G lasers from Coherent 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.
For more information, visit http://www.Coherent.com/