LiDAR sensors are key to ensure safety and efficiency of autonomous vehicles and mobile robotic systems. But current commercial LiDAR technologies cannot face the issues in terms of costs, reliability and form factors that are hindering widespread adoption. Steerlight, a CEA-Leti spin-off, develops a new generation of on-chip LiDARs that relies on Frequency Modulated Continuous Wave (FMCW) and Silicon Photonics. FMCW provides instantaneous depth and velocity acquisition while Silicon Photonics enables the integration of the optical and electronics functionalities on a single chip. This paper will first describe the proposed silicon photonics based architecture. Subsequently, various demonstrations will illustrate the roadmap towards miniature and scalable LiDARs. Such features will contribute to making a wide range of devices smarter and safer, beyond the automotive and robotics markets.
We present an optical phased array parameter analysis for automotive and handheld device applications and preliminary results from a 1×16 silicon optical phased array using p-i-n phase shifters built on a 300-mm industrial platform to reach high-speed operation and low power consumption at a 1.55𝜇𝑚 wavelength. Using 2 𝜇𝑚-spaced grating antennas OPA with theoretical beam steering range of 48°, we demonstrate a beam steering range of ±4° while average power consumption after the beam-shape optimization is measured to be 12.6 mW. Experimental setup, beam forming and scanning are discussed and a final analysis on future large-scale OPA integration is made.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.