Mitsuhiro Ikuta,Guillermo J. Tearney,Dongkyun Kang,Dukho Do
申请号：
US15340253
公开号：
US20180120555A1
申请日:
2016.11.01
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An apparatus comprising at least: a first waveguide； a second waveguide； and a diffractive element. The first waveguide guides a first band of onto the diffractive element such that the first band is diffracted at an mth non-zero order over a first range of angles. The second waveguide guides a second band onto the diffractive element such that the second band is diffracted at the mth non-zero over the first range of angles. The second waveguide guides a third band onto the diffractive element such that the third band is diffracted at the nth non-zero order over the first range of angles. Wavelengths of the first band, the second band, and the third band do not overlap with each other. The mth order and the nth order are different from each other.
