Patent ID: 9547188
Date: 2017-01-17
CPC Classifications: G02B,G02F

Claim:
1. A waveguide configured as an optical isolator, a cross section of the waveguide that is perpendicular to a propagation direction comprising: a first portion comprising a first optical material having first magnetic properties; and a second portion comprising a second optical material having second magnetic properties different from the first magnetic properties, the second material being a magneto-optical polymer; wherein: the waveguide is structured such that, given a difference between the first magnetic properties and the second magnetic properties, the waveguide has a cutoff frequency in a forward propagation direction that is different than a cutoff frequency in a reverse propagation direction, a length of a first dimension of the cross section of the waveguide being greater than a length of a second dimension of the cross section of the waveguide.