Microchannel Cooled (MCC) Stacks Overview

R1Z6-JOLD-900-QAFN-12A: Laser Diode Stack w/ FACMicrochannel Cooled (MCC) Heatsinks, Actively cooled package, typical Fabry-Perot laser stacks, are based on the principle of convective heat transfer. With these multimode laser stack packages, the heat is transferred from the bar to a thin, mostly metal substrate, and then to a liquid coolant flowing through it.

An MCC Stack is one of the highest cooling efficiency actively cooled packages available. MCC Stack is a stack of several layers which define the route of the cooling medium in an optimized path directly under the mounting surface of the diode laser bar.

Laser diodes on these Stacks are available with output powers of >100 W CW per bar at industry-standard lifetimes. As the laser diodes on MCC are stacked, very high output powers are available in a reasonably small emitting area. Multimode Laser Stacks are used wherever very high-power densities are needed in combination with high optical output powers.

The micro channels in the MCC Fabry-Perot Laser Stacks have a width of approx. 40 … 400 μm and a height of typically 300 μm. The high flow rates in the microchannels provide ideal conditions for the convective heat transfer from copper to the cooling medium.

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Picture Part Number Type Wavelength (nm) Output power (W) Mode Output Linewidth Duty Package
various sleek modern brass and stainless steel laser diode bar stack housings JOLD-Stacks Array (Bar) 760-1070 Up to 2400 W QCW Multimode Free Space CW, QCW Stack, MCC Stack

JOLD-Stacks Series

various sleek modern brass and stainless steel laser diode bar stack housings

The JOLD–Stacks Series offers a highly modular approach for power scaling well into the kW range. The series features compact, lightweight, and robust multimode, free-space laser diode stacks with options for 760-1070 nm, CW & QCW operation, output power up to 2400 W (QCW), no lensing or FAC or FAC/SAC collimation, active or passive cooling, and are completely customizable. JOLD-Stacks achieve optimal beam quality by reducing the stack pitch without compromising cooling capacity, and our proven hard-solder technology and strictly monitored production processes ensure tried & tested reliability in the harshest environments.