Patent ID: 11874503
Assignee: JIAXING UPHOTON OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The diffractive optical waveguide of claim 4, wherein when the coupling-in grating is formed by the first coupling-in grating and the second coupling-in grating with different grating vectors joined together, the first coupling-in grating is close to the first coupling-out region, and the second coupling-in grating is close to the second coupling-out region, wherein the first diffractive light obtained by the input light diffracted by the first coupling-in grating is totally reflected in the waveguide substrate and directed to the first coupling-out region, and the second diffractive light obtained by the input light diffracted by the second coupling-in grating is totally reflected in the waveguide substrate and directed to the second coupling-out region.