Optical coherence tomography imaging chip

The invention discloses an optical coherence tomography imaging chip based on a polymer photon integration platform. The imaging chip comprises an upper cladding, a lower cladding and a waveguide layer. The waveguide layer comprises an input waveguide, a bent waveguide, a directional coupler, a 1 * 2 multimode interference coupler, a Mach-Zehnder modulator, a 2 * 2 MMI and an output waveguide. The key optical waveguide elements are precisely designed, so that an imaging optical path of the whole OCT system can be realized in a chip-level compact space. The light source couples and inputs light signals into the OCT imaging chip, one path of light signals irradiate a sample and reflect back scattered light signals to generate OCT signals containing sample depth information, and the other path of light signals generate K clock signals used for K space calibration of the OCT signals. The OCT imaging chip and the OCT imaging system based on the polymer photon integration platform have the advantages of miniaturiza