Focuslight Introduces VCSEL Line Beam Transmitter Module for Automotive LiDAR Applications


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Designed for autonomous vehicles, industrial sensing, laser rangefinding, and infrared lighting applications, the new Focuslight LiDAR Tx L LX01 VCSEL line beam transmitter module is an industry first. It combines a multi-junction, high peak power 905nm VCSEL with unique optical beam shaping technology to produce a very uniform line beam (>80%) with FA divergence of<0.15˚ (horizontal) and SA divergence of 23˚ (vertical FOV, customizable). The slow axis divergence angle and energy distribution within the FOV can be customized on request.



Figure 1. The Focuslight LX01 line beam LiDAR transmitter module and its line laser beam.

The LiDAR Tx L LX01 line beam transmitter is the newest addition to Focuslight’s LiDAR Tx L line beam product line. The overall dimensions are 50.9 mm x 47.9 mm x 78.9 mm. The optical power is 200W, which can be used for new project optical performance evaluation and concept or prototype development. 

Figure 2. Horizontal and vertical FOV distribution (in angle space) of the FocusFlux LX01

Compared with line beam transmitter modules based on EEL edge-emitting laser, the LiDAR Tx L LX01 transmitter has core advantages of high-reliability, smaller wavelength temperature shift coefficient, lower sealing requirements, and overall lower cost at high volumes. With an APD array or the new SPAD / SIPM linear array as the LiDAR detector, the resulting LiDAR system can achieve high beam density, high resolution, and longer detection range. It is a preferred light source for next-generation line beam scanning LiDAR. 

Focuslight’s extensive work in automotive applications is based on its beam shaping expertise, laser bar AuSn bonding, electro-optical integration, and IATF16949 certified volume production capabilities.


About Focuslight:

Founded in 2007, Focuslight is a fast growing high-tech company committed to research, development and manufacturing of high power diode lasers. Headquartered in Xi’an, Shaanxi, China, Focuslight provides its products to a variety of different customers like OEMs, ODMs and system integrators in markets worldwide. With its extensive engineering capabilities from thermal, optical and mechanical design to die bonding, FAC assembling and fiber coupling to system integration, Focuslight is dedicated to providing customers with well-matched all-round solutions according to their actual needs. For more information, please visit