Article comprising a two-dimensional photonic crystal coupler and method of making the same
First Claim
1. An article comprising an optical device and, optically coupled to the device, an optical coupler for receiving light input from the device and outputting light in at least one discrete direction wherein:
- the optical coupler comprises a core region disposed between two cladding regions, the core region having a two-dimensional photonic crystal grating to output the light in the at least one direction.
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Abstract
A two-dimensional photonic crystal coupler is disclosed, together with a cross-coupled laser structure that is based on a two-dimensional photonic crystal coupler stage. Unlike traditional grating couplers, this two-dimensional photonic crystal coupler can couple light into a single or a plurality of discrete directions in the far-field, i.e., the output light may be unidirectional or discrete. The coupler can be integrated with one-dimensional lasers, a distributed feedback laser, a distributed Bragg reflector laser, and integrated on the same waveguide as the lasers. A resonant cavity coupler design improves the coupling efficiency of two-dimensional photonic crystal-based couplers.
53 Citations
18 Claims
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1. An article comprising an optical device and, optically coupled to the device, an optical coupler for receiving light input from the device and outputting light in at least one discrete direction wherein:
the optical coupler comprises a core region disposed between two cladding regions, the core region having a two-dimensional photonic crystal grating to output the light in the at least one direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification