|Publication No: 5130||Search all ORC publications|
Optimization of an integrated wavelength monitor device
Pengfei Wang1,2, Gilberto Brambilla1, Yuliya Semenova2, Qiang Wu2, Gerald Farrell2
1. Optoelectronics Research Centre, University of Southampton, UK
2. Photonic Research Centre, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
In this paper an edge filter based on multimode interference in an integrated waveguide is optimized for a wavelength monitoring application. This can also be used as a demodulation element in a fibre Bragg grating sensing system. A global optimization algorithm is presented for the optimum design of the multimode interference device, including a range of parameters of the multimode waveguide, such as length, width and position of the input and output waveguides. The designed structure demonstrates the desired spectral response for wavelength measurements. Fabrication tolerance is also analysed numerically for this structure.
SPIE Optics + Optoelectronics Prague 18-21 Apr (2011)
Copyright University of Southampton 2006