Lumentum

Ams Osram’s multi-junction VCSELs are helping to improve automotive lidar. Credit: Ams Osram

VCSELs rev up for life in the fast lane

Multi-junction vertical-cavity surface-emitting lasers are likely to displace LEDs and edge-emitting lasers in sensing, finds Andy Extance

Simonette Pierrot

Although a lot of outstanding results have been demonstrated in terms of energy and power scaling of ultrafast lasers in the past 20 years, the technology has now reached a certain level of maturity, believes Simonette Pierrot, principal laser engineer at Lumentum.

‘In my opinion the focus in the pulsed laser field will now be less about opening the way to new performance such as shorter pulse or higher energy, more about stabilizing it and making it manufacturable in high volume,’ she said.

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