Coherent Launches Cost-Effective Green 532 nm Optically Pumped Semiconductor Lasers (OPSL) for Bioinstrumentation
Most traditional CW 532 nm lasers based on Nd:YVO4 crystals suffer from higher output noise because the intracavity doubling mechanism causes a wellknown phenomenon called green noise. In contrast, the OPSL has a very short upper state lifetime which naturally eliminates green noise completely without additional measures such as complex single longitudinal mode operation. Together with their high output power, this makes these Sapphire 532 lasers ideal for fastthroughput applications based on accurate measurements of relative fluorescence intensity.
Specific applications for Sapphire 532 lasers span several areas of bioinstrumentation that utilize fluorophores optimized for 532 nm excitation. These include DNA sequencing, flow cytometry, confocal microscopy, and highthroughput drug discovery.
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