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How to choose a tunable laser?

Tunable lasers offer great flexibility to researchers and also industrials. They are used in many different applications areas: atmospheric sensing, biomedicine, microscopy, spectroscopy, atom cooling, defense, medicine, and more. We cannot help but notice that there is more than one type of tunable laser available on the market. What are the differences between those lasers? How to make a choice between them? Here is a quick summary of the tunable lasers available today and their range of performances. Something missing? Some…