Enhanced light emission from a Si photonics beam steering device consisting of asymmetric photonic crystal waveguide

Ito, Hiroyuki; Kusunoki, Yuma; Akiyama, Daichi; Tetsuya, Ryo; Abe, Hiroshi; Baba, Toshihiko

doi:10.1117/12.2508297

Cited by 1 publication

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dispersive grating diffraction usually has a small FOV due to the low wavelength sensitivity. To enhance the wavelength sensitivity, Ito et al employed the slow-light effect in photonic crystal waveguides [ 8 , 52 , 56 , 57 , 58 ]. This strategy can be understood by Equation (9), where a large

in slow-light waveguides can increase the sensitivity.…”

Section: Beam Steering Technologiesmentioning

confidence: 99%

Free-Space Applications of Silicon Photonics: A Review

2022

View full text Add to dashboard Cite

Silicon photonics has recently expanded its applications to delivering free-space emissions for detecting or manipulating external objects. The most notable example is the silicon optical phased array, which can steer a free-space beam to achieve a chip-scale solid-state LiDAR. Other examples include free-space optical communication, quantum photonics, imaging systems, and optogenetic probes. In contrast to the conventional optical system consisting of bulk optics, silicon photonics miniaturizes an optical system into a photonic chip with many functional waveguiding components. By leveraging the mature and monolithic CMOS process, silicon photonics enables high-volume production, scalability, reconfigurability, and parallelism. In this paper, we review the recent advances in beam steering technologies based on silicon photonics, including optical phased arrays, focal plane arrays, and dispersive grating diffraction. Various beam-shaping technologies for generating collimated, focused, Bessel, and vortex beams are also discussed. We conclude with an outlook of the promises and challenges for the free-space applications of silicon photonics.

show abstract

in slow-light waveguides can increase the sensitivity.…”

Section: Beam Steering Technologiesmentioning

confidence: 99%