Optical transceiver assembly for lidar, lidar and terminal device

Abstract

The present disclosure relates to a light transceiver assembly for a lidar, a lidar and a terminal device. The light transceiver assembly comprises a laser output end, a transceiver end, a mode separator, a mode converter and a high-order mode mixer. The laser output end is configured to output eigen light and probe light. The transceiver end is configured to emit the probe light and receive echo light generated by the probe light after being reflected by an object. The mode separator is configured to separate high-order mode echo light from the echo light. The mode converter is configured to receive the eigen light and output sub-eigen light. The sub-eigen light comprises high-order mode eigen light converted from at least part of the eigen light. The high-order mode mixer is configured to beat the high-order mode echo light and the high-order mode eigen light to generate a beat signal.

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