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Keep Your Laser-Diode System Cool, Whatever the Power (Laser Focus World)

To operate within temperature specifications, virtually any high-power laser must be actively cooled, whereas many low-power lasers get by with passive cooling via either some sort of heat sink or just natural airflow (picture, for example, a lowly helium-neon laser resting in a lab mount with no obvious cooling mechanism in sight). Laser diodes (LDs) are a special case: their small size means that even low-power emitters require a well-thought-out cooling configuration.

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