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Variable ratio power splitters using computer-generated planar holograms on 2×2 multimode interference couplers

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3 Author(s)
Shuo-Yen Tseng ; Center for Org. Photonics & Electron., Georgia Inst. of Technol., Atlanta, GA, USA ; Seungkeun Choi ; Kippelen, B.

Variable ratio power splitters using computer-generated planar holograms on 2times2 multimode interference (MMI) couplers are presented. The coherent wave at the device input is transformed to the desired output using computer-generated refractive index perturbations on multimode channel waveguides at half the beat length. Devices are fabricated on the silicon-on-insulator platform and characterized at the wavelength of 1.55 mum. We demonstrate different splitting ratios by changing the hologram etch depth and the hologram length.

Published in:

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Date of Conference:

2-4 June 2009

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