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We add two references in which a similar silicon-based optical true time delay line structure is proposed for potential applications in microwave antenna.
© 2014 Optical Society of America
In our paper [1], we missed two prior publications in which the N-bit programmable silicon photonics time delay unit was proposed for use as a reconfigurable optical controller for microwave antennae [2, 3]. Although the basic structure is similar, our work is more focused on the experimental demonstration of a real device.
References and links
1. J. Xie, L. Zhou, Z. Li, J. Wang, and J. Chen, “Seven-bit reconfigurable optical true time delay line based on silicon integration,” Opt. Express 22(19), 22707–22715 (2014). [CrossRef]
2. S. Fathpour and N. A. Riza, “Silicon-photonics-based wideband radar beamforming: basic design,” Opt. Eng. 49(1), 018201 (2010). [CrossRef]
3. R. Soref, “Reconfigurable integrated optoelectronics,” Adv. Optoelectron. 2011, 627802 (2011). [CrossRef]