A widely tunable optical filter using ladder-type structure

A widely tunable optical filter using ladder-type structure

A novel widely tunable optical filter with a ladder-type structure is proposed. The device decreases the electrode area, compared with a tunable filter using an arrayed waveguide grating filter. It is fabricated using the InGaAsP-InP material system, and current injection is employed to change the r...

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Veröffentlicht in:IEEE photonics technology letters 2003-08, Vol.15 (8), p.1114-1116
Hauptverfasser: Matsuo, S., Yoshikuni, Y., Segawa, T., Ohiso, Y., Okamoto, H.
Format: Artikel
Sprache:eng
Schlagworte:
Arrayed waveguide gratings
Couplings
Devices
Diffraction gratings
Electrodes
Gratings (spectra)
Optical filters
Optical refraction
Optical tuning
Optical variables control
Optical waveguides
Semiconductor waveguides
Switching
Tuning
Waveguides
Wavelength division multiplexing
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Beschreibung
Zusammenfassung:A novel widely tunable optical filter with a ladder-type structure is proposed. The device decreases the electrode area, compared with a tunable filter using an arrayed waveguide grating filter. It is fabricated using the InGaAsP-InP material system, and current injection is employed to change the refractive index of the waveguide. The device exhibits a tuning range of 58 nm and a switching time of less than 10 ns.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2003.815354