Harvard College

Yaowen Hu

Mian Zhang

Marko Loncar

Reconfigurable electro-optic frequency shifters are provided. In various embodiments, the optical frequency shifter comprises a continuous optical spectrum medium; a discrete optical spectrum medium optically coupled to the continuous optical spectrum medium; and a tunable element operably coupled to the discrete optical spectrum medium, wherein: the discrete optical spectrum medium has N optical modes (I:{i. . . i}), said optical modes being ordered and equidistant in a frequency domain, wherein N is an integer equal to or greater than 3, each of the optical modes (i&#x2208;I) having a coupling constant &#x3ba;with respect to the continuous optical spectrum medium, wherein at least one of the coupling constants &#x3ba;is different from the other coupling constants, the optical modes (I) having a coupling constant &#x3a9; with respect to one another, wherein the tunable element is configured to control the coupling constant &#x3a9;.

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Cambridge, MA, United States of America

Yaowen Hu