Adiabatic and Multimode Interference Couplers on Silicon-on-Insulator

Adiabatic and Multimode Interference Couplers on Silicon-on-Insulator

Adiabatic and multimode interference (MMI) 3-dB couplers based on silicon-on-insulator rib waveguides were fabricated and measured. For testing purposes, pairs of identical couplers were cascaded to form Mach-Zehnder interferometers. The adiabatic couplers showed excess on-chip loss of ~0.5 dB, exti...

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Veröffentlicht in:IEEE photonics technology letters 2006-11, Vol.18 (21), p.2287-2289
Hauptverfasser: Solehmainen, K., Kapulainen, M., Harjanne, M., Aalto, T.
Format: Artikel
Sprache:eng
Schlagworte:
Adiabatic flow
Couplers
Erbium
Extinction
Integrated optics
Interference
Mach-Zehnder interferometers
Noise levels
Optical device fabrication
Optical devices
Optical losses
optical planar waveguide couplers
Optical polarization
Optical sensors
Optical waveguides
Photonics
Silicon on insulator technology
silicon-on-insulator (SOI) technology
Spectra
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Beschreibung
Zusammenfassung:Adiabatic and multimode interference (MMI) 3-dB couplers based on silicon-on-insulator rib waveguides were fabricated and measured. For testing purposes, pairs of identical couplers were cascaded to form Mach-Zehnder interferometers. The adiabatic couplers showed excess on-chip loss of ~0.5 dB, extinction ratio (ER) of 15-20 dB, and a wide spectral range. The MMI couplers processed on the same wafer showed similar loss per coupler, higher ER, and limited spectral characteristics
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.885305