250 Watt Laser Diode Heat Sink with Air Cooled Base for High Power Lasers

Product Overview:

The LDM-250W model heat sinks provide high performance heat removal at an affordable price for high power laser diodes. These heat sinks are designed for lasers which have internal Peltier / TE coolers integrated into the module or for lasers which have water fittings. Dual fans remove the heat from the base. Standard mounting plates are available for most package stylex and custom plates are also available.

Passively Cooled Heat Sink:
The LDM-250W is a passively cooled heat sink, meaning that their are no Peltier elements in the unit. The heat emitting from the laser is conducted down through the laser mounting plate through a low thermal impedance plate surface. Two high CFM fans located in the base dissipate the heat from the base of the block into the air. The LDM-250W offers a low thermal impedance of < 0.059 K/W. mounting surface for the laser being tested. The thermal performance of a passively cooled heat sink is highly dependent on the thermal impedance, or resistance. This measurement is defined in units of degrees Celsius per watt of heat°C/W. The thermal resistance allows the user to determine the amount of temperature rise that the laser diode will experience for each watt of thermal energy that is emitted by the device under test. The dual fans in the base greatly improve the thermal performance of the heat sink and allow the user to set the laser temperature to a set-point which is equivalent to the lab ambient temperature. Careful machining of the mounting plate surface finish and surface flatness are also crucial to the heat sink performance.