Wide steering angle optical phased array based on silicon nano-membrane

Amir Hosseini; David Kwong; Ray T. Chen

doi:10.1117/12.809311

12 February 2009 Wide steering angle optical phased array based on silicon nano-membrane

Amir Hosseini, David Kwong, Ray T. Chen

Proceedings Volume 7221, Photonics Packaging, Integration, and Interconnects IX; 72210T (2009) https://doi.org/10.1117/12.809311
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We present a new approach to wide angle optical beam steering based on nano-membrane-based phased array structures with unequally spaced elements. In our approach, the array elements are positioned in such way that grating lobes associated with different sub-arrays do not overlap. Therefore, we reduce the side-lobe-level of the array radiation pattern and at the same time we can avoid the optical coupling between adjacent waveguides by relaxing the half-wavelength spacing requirement for large angle beam steering. By optimizing the optical waveguide structure for the maximum full-width at half-maximum of the single radiator's radiation pattern we discuss the optimum performance achievable using the Unequally-spaced Waveguide Arrays.

Citation Download Citation

Amir Hosseini, David Kwong, and Ray T. Chen "Wide steering angle optical phased array based on silicon nano-membrane", Proc. SPIE 7221, Photonics Packaging, Integration, and Interconnects IX, 72210T (12 February 2009); https://doi.org/10.1117/12.809311

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