Variable-ratio power splitters using computer-generated planar holograms on multimode interference couplers | Zendy

ShuoYen Tseng | Zendy; Seungkeun Choi | Zendy; Bernard Kippelen | Zendy

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

Author(s) -

ShuoYen Tseng,

Seungkeun Choi,

Bernard Kippelen

Publication year - 2009

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.34.000512

Subject(s) - optics , planar , holography , refractive index , materials science , multi mode optical fiber , interference (communication) , wavelength , beat (acoustics) , optoelectronics , physics , channel (broadcasting) , optical fiber , telecommunications , computer science , computer graphics (images)

Variable-ratio power splitters using computer-generated planar holograms on multimode interference couplers are analyzed. The coherent wave at the device input is transformed to the desired output using numerically calculated refractive index perturbations on multimode channel waveguides at half the beat length. Devices are fabricated on the silicon-on-insulator platform and characterized at a wavelength of 1.55 mum. Power-splitting ratios are varied by changing the hologram etch depth and the hologram length.

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