SPIE Photonics West: Copper heatsink packages for laser diodes

Schott has created high-power TO-9 and SMD packages for laser diodes that have a copper slug that passes all the way through the base.

The copper is brazed into position, maintaining overall hermetic sealing.

From a thermal simulation that includes a laser, sub-mount and header, the company is claiming a thermal resistance around 8K/W for the TO-9 device (right).

“It is suitable for blue, green, red and violet high-power laser diodes and is ideal for projection systems, automotive HUD lasers, laser marking and industrial high‑power modules,” claimed Schott.

Custom versions are available. See them at SPIE Photonics West from 20 to 22 January on stand 1,341 at the Moscone Center, San Francisco.

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Steve Bush

Steve Bush is the long-standing technology editor for Electronics Weekly, covering electronics developments for more than 25 years. He has a particular interest in the Power and Embedded areas of the industry. He also writes for the Engineer In Wonderland blog, covering 3D printing, CNC machines and miscellaneous other engineering matters.