Today, more and more mobile applications need power saving VCSELs (Vertical Cavity Surface Emitting Lasers), e.g. trackballs for mobile phones, wireless laser mice, mobile industry applications. Power-saving VCSELs help to extend the battery life time and improve the customer experience.
In order to meet this increasing demand, Philips ULM-Photonics qualified and released a new single-mode VCSEL platform for ultra low power consumption and high output power. In this new platform, Philips ULM Photonics implements several innovative approaches to achieve polarization control without any trade-off on VCSEL efficiency, so that VCSELs can work on very low operating currents and at the same time provide high laser output power in single mode with polarization locking. The graph shows a typical L-I-V curve of chips, which are in mass production already.
The first released product specification based on this platform is named ULM850-A4-PL-S0101U, which offers customers all valuable features for mobile applications:
- High output power with ultra low operating current requirement (1.4 mW @ 3.5 mA, typically 1.4 mW @ 2.5 mA)
- Single mode performance (side mode suppression ratio >10 dB, typical >25 dB)
- Polarization locking (no static or dynamic polarization flips)
- Small footprint for low cost and compactness (200 µm x 200 µm)
- Extended operating temperature (-20 °C ~ 60 °C)
For more information and the datasheet, please visit our website. Our sales team will be readily available to discuss custom product specification for individual applications.
