Nextreme Thermal Solutions recently introduced the OptoCooler HV37 module, the next product in its high-voltage (HV) line of thin-film thermoelectric coolers (TECs) designed to address photonics cooling applications with larger heat pumping requirements. At 85°C, the OptoCooler HV37 can pump 4.5 watts or 107W/cm2 of heat in footprint of only 6 mm2. The device is only 0.6mm … [Read more...]
Laser Cooling Systems Offer Heatsink Module
Elite Thermal Engineering (ETE) introduces turnkey cooling systems for fiber coupled laser diodes produced by LIMO, Jenoptik, QPC and nLight. The cooling systems can also be customized for fiber coupled laser diodes manufactured by other laser diode suppliers such as Coherent, Spectra-Physics, IPG, etc. ETE offers two families of turnkey cooling systems: one for diodes without … [Read more...]
Precision Unipolar Temperature Controller
Wavelength Electronics’ RHM5K-CH temperature controller can be used to achieve precision control at off-ambient temperatures. The PID control loop drives resistive heaters or thermoelectric coolers. The RHM offers a high level of stability and can supply up to 5 A with a small footprint. On-board 12-turn trimpots control temperature setpoint, proportional gain, and output … [Read more...]
Latest Developments In Thermoelectrically Enhanced Heat Sinks
Nomenclature Q Heat load (W) COP Coefficient of Performance I Electrical current (Amps) T Temperature (°C) R Electrical resistance (Ohms) Z TE Figure of Merit (1/K) where Z = α2 / (ρ λ) Greek Letters Δ Change in value θ Thermal resistance (°C/W) ρ Electrical resistivity (Ohm-cm) α Seebeck coefficient (V/K) λ Thermal conductivity … [Read more...]
