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

Author

Tseng, Shuo-Yen ; Choi, Seungkeun ; Kippelen, Bernard

Author_Institution

Center for Org. Photonics & Electron., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

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.

Keywords

holography; integrated optics; optical beam splitters; optical couplers; optical fabrication; optical waveguides; computer generated planar hologram; computer generated refractive index perturbation; hologram etch; hologram length; multimode channel waveguide; multimode interference couplers; silicon-on-insulator; variable ratio power splitter; wavelength 1.55 nm; Couplers; Etching; Holographic optical components; Holography; Interference; Optical computing; Optical devices; Optical refraction; Optical variables control; Optical waveguides; (090.1760) Computer holography; (130.2790) Guided waves; (130.3120) Integrated optics devices;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225846