Abstract
Fiber-chip edge couplers are extensively used in integrated silicon photonic for the coupling of light between optical fibers and planar silicon waveguide circuits. Here, we experimentally demonstrate three kinds of edge couplers with eased fabrication process, two fork shape, and one dual-trident SWG shape, based on Silicon-on-Insulator platform. A commercial lensed fiber with mode field diameter of 6 μm is used. The coupling performance and fabrication tolerance are theoretically analyzed and verified by 3D-FDTD simulation. The experimental results show that these edge couplers pose low coupling losses and large bandwidths simultaneously. At the wavelength of 1.55 μm, the coupling losses are 1.25 dB/facet, 1.49 dB/facet, 1.82 dB/facet for fork1, fork2, and dual-trident SWG couplers, respectively. The measured wavelength bandwidths in which the loss below 2 dB are 114 nm, 102 nm, 92 nm, respectively.
PDF Article
More Like This
Fiber-chip edge coupler with large mode size for silicon photonic wire waveguides
Martin Papes, Pavel Cheben, Daniel Benedikovic, Jens H. Schmid, James Pond, Robert Halir, Alejandro Ortega-Moñux, Gonzalo Wangüemert-Pérez, Winnie N. Ye, Dan-Xia Xu, Siegfried Janz, Milan Dado, and Vladimír Vašinek
Opt. Express 24(5) 5026-5038 (2016)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription