Abstract: A low-profile LiDAR system is provided. The low-profile LiDAR system comprises a housing; a rotatable polygon mirror having a plurality of reflective facets; and a first oscillating mirror disposed laterally on one side of the rotatable polygon mirror. The first oscillating mirror is configured to direct one or more first transmission light beams to a first reflective facet of the rotatable polygon mirror. The LiDAR system may also include a second oscillating mirror disposed laterally on another side of the rotatable polygon mirror. The second oscillating mirror is configured to direct the one or more second transmission light beams to a second reflective facet. A combination of the first and second oscillating mirrors, and the rotatable polygon mirror is configured to: scan the first and second transmission light beams to a first field-of-view and a second field-of-view, respectively, and direct return light to one or more detectors.