Search

Your search keyword '"Ziyun Kong"' showing total 2 results
Start Over Author "Ziyun Kong" Publisher optica publishing group
2 results on '"Ziyun Kong"'

1. Aliasing-free Beam Steering from an Optical Array Emitter with Half-wavelength Pitch

Author

Abdullah Al Noman, Yun Jo Lee, Ziyun Kong, Gregory Chang, Yingheng Tang, Minghao Qi, and Ruihan Chen

Subjects
Coupling, Materials science, business.industry, Beam steering, Physics::Optics, Grating, Cladding (fiber optics), Wavelength, Optics, Aliasing, Physics::Accelerator Physics, Phase velocity, business, Common emitter
Abstract

We present an OPA with uniform half-wavelength pitch and grating emitters. Aliasing-free beam steering over ∼ 120° field-of-view is measured. Evanescent coupling between closely spaced emitters is suppressed by extreme skin-depth cladding structures.

Published
2020

2. Design of 2D Optical Phased Array Emitters with Half-wavelength Spacing and Less Than -20 dB Crosstalk

Author

Yingheng Tang, Ziyun Kong, Abdullah Al Noman, Minghao Qi, Yun Jo Lee, and Gregory Chang

Subjects
Coupling, Materials science, Evanescent wave, Phased-array optics, business.industry, Beam steering, Physics::Optics, Metamaterial, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 010309 optics, Crosstalk, Wavelength, Optics, 0103 physical sciences, 0210 nano-technology, business, Optical arrays
Abstract

We propose a multi-layered, 2D optical phased array capable of 180°× 180° beam steering range without wavelength tuning. Evanescent coupling between half-wavelength spaced waveguides is suppressed below –20 dB through index-mismatch and extreme skin-depth metamaterial waveguides.

Published
2020

Catalog

Books, media, physical & digital resources
See catalog results