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LK Package: High-Power Open Heat Sink
Driving new high-power diode-laser based applications in optical pumping and DDL-technology.
Jenoptik’s most recent advancements in the assembly and mounting technology for high-power open heat sink diode lasers set a new benchmark for forward-thinking clients looking to broaden their use of optical pumping or direct-diode laser technology.
The LK heat sink acts as the foundational component for innovative applications with low or high brightness, for instance, those utilizing spatial and spectral beam combining methods.
In the 9xx nm range, it’s possible to achieve optical output power levels up to 300 W in continuous wave (CW) and even in hard-pulse mode.
LK Heat Sink Features & Benefits
Increased optical power
High reliability even in hard pulse conditions
Continuous-wave operation
Passive cooling
Reduced cost per Watt
Less complexity
Simple integration and adaptation to existing systems
Simplified power scaling
High-Performance – Thanks to Technology
Our latest advancements in mounting and assembly technology have led to the development of our new high-power open heat sink diode laser generation, LK. This new generation can achieve optical output power levels that significantly surpass those of industry standards such as the CS.
Traditional die-mounting technologies depend on laser bars being soldered with either indium or gold-tin solder. However, these soldered connections are susceptible to mechanical failure, particularly under hard-pulse conditions. These conditions involve the periodic operation of the diode laser between below-threshold and operating current at sub-second intervals. To address this issue, Jenoptik has pioneered a new, solder-free technique. This results in a more robust connection that is stable under hard-pulse conditions and can endure the temperature fluctuations that occur during hard pulse operation.
The LK heat sink design features double-sided cooling and an additional heat sinking capacity due to its protruding nose. This ensures optimal heat sinking capability, resulting in thermal resistance values as low as < 0.25 K/W for high-power laser bars up to 300 W (cw, hard-pulse).
The higher output power per package simplifies power scaling and system assembly, providing significant added value for our customers.
So, what are you waiting for?
| Picture | Part Number | Type | Wavelength (nm) | Output power (W) | Mode | Output | Linewidth | Duty | Package |
|---|---|---|---|---|---|---|---|---|---|
|
JOLD-Open Heatsinks | Array (Bar) | 760-1070 | Up to 300 W CW | Multimode | Free Space | CW, QCW | CS, CN, LK Package |