Optical signal processing based on silicon photonics waveguide Bragg gratings: review

Fiber Bragg Grating-Based Optical Signal Processing: Review and Survey

“…In particular, the need for particular filtering operations to implement complete functionalities on a chip, e.g., in microwave photonics processors, beamforming networks, arbitrary waveform generation, etc. is widely recognized [18][19][20]96]. The development of optical processors on integrated Bragg gratings is following a similar path to the one that occurred in fiber platforms.…”

“…tegrated circuits (PICs) has speeded up the interest in translating the functionalit tained by FBGs to integrated platforms (i.e., the so-called waveguide Bragg gra aimed at the realization of entire functionalities on a chip [18][19][20]. Besides, recen spects foster a low cost for massive production using CMOS technology.…”

“…were implemented with bandwidths ranging from tens of GHz to THz [17]. Recently, the rapid growth of semiconductor technologies and silicon-based photonics integrated circuits (PICs) has speeded up the interest in translating the functionalities attained by FBGs to integrated platforms (i.e., the so-called waveguide Bragg gratings), aimed at the realization of entire functionalities on a chip [18][19][20]. Besides, recent prospects foster a low cost for massive production using CMOS technology.…”

A Review and Perspective on Optical Phased Array for Automotive LiDAR

“…fully etched gratings), leading to compact structures, as demonstrated in [116]. However, many different designs have been proposed to implement gratings on SOI chips, for example by modulating the refractive index of the cladding, or by using sub-wavelengths gratings (SWG) or multi-box SWG to engineer the effective index of SiPho waveguides and sensors [89]- [90], [141]. SWG-based sensors offer enhanced performance with respect to similar sensors based on regular waveguides; this enhancement is due to NIR light propagation in SWG waveguides with low loss but increased evanescent field.…”

Optical Vortices Sharp Focusing by Silicon Ring Gratings Using High-Performance Computer Systems

“…A number of classical structures in the construction of crossing silicon waveguides are well known, such as subwavelength grating, shaped taper, holey subwavelength grating [3]. In particular, the methodology for designing silicon based waveguide Bragg gratings (WBGs) in detail discusses the paper [8]. And one of the ways to increase the number of channels for data transmission is the introduction of higher order modes in mode-division-multiplexed (MDM) systems, which also allows for increased device design flexibility [9].…”