SiC pinpin photonic filters for linking the visible spectrum to the telecom gap

M. Vieira, M. A. Vieira, P. Louro, A. Fantoni, V. Silva

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Expanding far beyond traditional applications at telecommunications wavelengths, the SiC photonic devices has recently proven its merits for working with visible range optical signals. Reconfigurable wavelength selectors are essential sub-systems for implementing reconfigurable WDM networks and optical signal processing. Visible range to telecom band spectral translation in SiC/Si can be accomplished using wavelength selector under appropriated optical bias, acting as reconfigurable active filters. In this paper we present a monolithically integrated wavelength selector based on a multilayer SiC/Si integrated optical filters that requires optical switches to select wavelengths. The selector filter is realized by using double pin/pin a-SiC:H photodetector with front and back biased optical gating elements. Red, green, blue and violet communication channels are transmitted together, each one with a specific bit sequence. The combined optical signal is analyzed by reading out the generated photocurrent, under different background wavelengths applied either from the front or the back side. The backgrounds acts as channel selectors that selects one or more channels by splitting portions of the input multi-channel optical signals across the front and back photodiodes. The transfer characteristics effects due to changes in steady state light, irradiation side and frequency are presented. The relationship between the optical inputs and the digital output levels is established.

Original languageEnglish
Pages (from-to)179-183
Number of pages5
JournalMicroelectronic Engineering
Volume126
DOIs
Publication statusPublished - 25 Aug 2014

Fingerprint

selectors
visible spectrum
Photonics
photonics
filters
Wavelength
optical communication
wavelengths
Optical signal processing
Photonic devices
Optical filters
Active filters
Optical switches
optical filters
spectral bands
Photodetectors
Photodiodes
Photocurrents
Wavelength division multiplexing
photodiodes

Keywords

  • Optoelectronic devices
  • Tandem heterostuctures
  • Telecommunications
  • WDM devices

Cite this

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title = "SiC pinpin photonic filters for linking the visible spectrum to the telecom gap",
abstract = "Expanding far beyond traditional applications at telecommunications wavelengths, the SiC photonic devices has recently proven its merits for working with visible range optical signals. Reconfigurable wavelength selectors are essential sub-systems for implementing reconfigurable WDM networks and optical signal processing. Visible range to telecom band spectral translation in SiC/Si can be accomplished using wavelength selector under appropriated optical bias, acting as reconfigurable active filters. In this paper we present a monolithically integrated wavelength selector based on a multilayer SiC/Si integrated optical filters that requires optical switches to select wavelengths. The selector filter is realized by using double pin/pin a-SiC:H photodetector with front and back biased optical gating elements. Red, green, blue and violet communication channels are transmitted together, each one with a specific bit sequence. The combined optical signal is analyzed by reading out the generated photocurrent, under different background wavelengths applied either from the front or the back side. The backgrounds acts as channel selectors that selects one or more channels by splitting portions of the input multi-channel optical signals across the front and back photodiodes. The transfer characteristics effects due to changes in steady state light, irradiation side and frequency are presented. The relationship between the optical inputs and the digital output levels is established.",
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author = "M. Vieira and Vieira, {M. A.} and P. Louro and A. Fantoni and V. Silva",
note = "Sem PDF. This work was supported by FCT (CTS multi annual funding) through the PIDDAC Program funds and PTDC/EEA-ELC/111854/2009 and PTDC/EEA-ELC/120539/2010.",
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SiC pinpin photonic filters for linking the visible spectrum to the telecom gap. / Vieira, M.; Vieira, M. A.; Louro, P.; Fantoni, A.; Silva, V.

In: Microelectronic Engineering, Vol. 126, 25.08.2014, p. 179-183.

Research output: Contribution to journalArticle

TY - JOUR

T1 - SiC pinpin photonic filters for linking the visible spectrum to the telecom gap

AU - Vieira, M.

AU - Vieira, M. A.

AU - Louro, P.

AU - Fantoni, A.

AU - Silva, V.

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Y1 - 2014/8/25

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