A generic lightwave integrated chip (GLIC) for fast high-resolution wavelength monitoring

John A. Ging; Alan G. Larkin; Ronan O'Dowd; Haiyan Ou; Karsten Rottwitt

doi:10.1117/12.662022

20 April 2006 A generic lightwave integrated chip (GLIC) for fast high-resolution wavelength monitoring

John A. Ging, Alan G. Larkin, Ronan O'Dowd, Haiyan Ou, Karsten Rottwitt

Author Affiliations +

Proceedings Volume 6183, Integrated Optics, Silicon Photonics, and Photonic Integrated Circuits; 618302 (2006) https://doi.org/10.1117/12.662022
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

Optical transmission technologies such as Dense-Wavelength Division Multiplexing (DWDM) have emerged in recent years to meet the demand for higher bandwidths and data rates. In order to implement such technologies, accurate determination of channel wavelengths is required. The Fabry-Perot Interferometer (FPI) offers the ability to resolve wavelengths with a 2-5 pm precision in resolution. We present here a novel Generic Lightwave Integrated Chip (GLIC) founded on the FPI. The device has been realised on a Planar Lightwave Circuit (PLC) in SiO₂ on Silicon as a means to achieve the desired rapid wavelength monitoring with high resolution. In this paper, the simulation and characterisation of the device is reported and the advantages of this technology are revealed. The theory is founded on employing the concept of quadrature between 2 phase-shifted signals provided by 2 similar Fabry-Perot cavities to determine the wavelength in question with a sub-microsecond response time. The compact features of the device make it an ideal candidate for application in future silica based PLC DWDM networks. By its generic nature, the device is also an attractive choice for applications in optical sensing and biophotonics.

Citation Download Citation

John A. Ging, Alan G. Larkin, Ronan O'Dowd, Haiyan Ou, and Karsten Rottwitt "A generic lightwave integrated chip (GLIC) for fast high-resolution wavelength monitoring", Proc. SPIE 6183, Integrated Optics, Silicon Photonics, and Photonic Integrated Circuits, 618302 (20 April 2006); https://doi.org/10.1117/12.662022

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