Multi-clad Fiber Based Optical Apparatus and Methods for Light Detection and Ranging Sensors

摘要

Methods and apparatus for light detecting and range sensing. In one approach, a light detecting and ranging (LiDAR) sensor uses an optical directing device; a multi-clad optical fiber, a light source, and a detector. The light source is optically coupled to the multi-clad optical fiber which is configured to receive optical rays transmitted from the light source and route the rays on an optical path leading to the optical directing device. The optical directing device is configured both to direct the transmitted optical rays routed through the multi-clad fiber towards a target to be sensed and direct optical rays reflected from the target on an optical path leading to the multi-clad optical fiber. The multi-clad optical fiber is configured to receive the reflected optical rays and route the reflected optical rays on an optical path leading to the detector. The detector is configured to detect the reflected optical rays.

主权项

1. An optical apparatus for a light detecting and ranging (LiDAR) sensing system, the optical apparatus comprising
an optical directing device; and a multi-clad optical fiber, wherein said multi clad optical fiber comprises a core, at least one inner cladding, and an outer cladding; wherein said core is arranged to receive optical rays transmitted from a light source of said sensing system and route said transmitted optical rays on an optical path leading to the optical directing device; wherein said optical directing device is configured both to direct said routed transmitted rays on an optical path leading to a target to be sensed and direct reflected optical rays from said target on an optical path leading to said inner cladding of said optical fiber; and wherein said inner cladding is configured to receive said reflected optical rays and route said reflected optical rays for receiving by a detector of said sensing system.