Photonics Handbook®
A unique collection of technical design and applications articles, as well as technology primers presenting the basics of the photonics technology.
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ARTICLE OF THE HOUR Driving Diode Lasers
A Straightforward Procedure
Observing the basic principles and understanding the physical behavior of diode lasers helps users operate them correctly and safely. By observing a few simple rules that govern diode lasers’ properties, driving them loses much of its mystery. Below its threshold current, a diode laser emits LED light with spontaneous emission only. At the threshold current and above, it begins to generate laser light, and the optical output power rises steeply with increasing diode operating current....