Nanophotonic devices for power-efficient communications

Chang, Yung-Chia; Lipson, Michal

doi:10.1016/b978-0-12-816502-7.00003-8

Cited by 2 publications

(5 citation statements)

References 120 publications

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“…Silicon photonics is poised to change the landscape of optical systems. It has shown impressive success in fiber telecommunications [ 1 , 2 , 3 ], and we expect to see more and more applications in the free space. Silicon photonics enables miniaturization to the chip scale, large-scale integration of many components, reconfigurability with active tuning, and mass production with high yield.…”

Section: Discussionmentioning

confidence: 99%

“…The electro-optic effect is weak in silicon, and, therefore, the phase shifters need to have sufficient lengths. A typical voltage-length product

is in the order of several V

cm [ 3 ]. There have been demonstrations of OPAs based on electro-optic phase shifters [ 9 , 13 , 38 , 39 , 40 ].…”

Section: Beam Steering Technologiesmentioning

confidence: 99%

“…Silicon photonics enables the integration of various functional components on a monolithic platform, providing a path to miniaturizing an optical system to a chip scale [ 19 , 60 ]. Monolithic integration has proved to be a powerful approach to the design and manufacture of optical transceivers [ 1 , 2 , 3 ]. An optical communication system composed of modulators, multiplexers/demultiplexers, photodetectors, etc.…”

Section: Integrated Lidar Single-pixel Imaging and Fso Systemmentioning

confidence: 99%

“…Silicon photonics is a reliable and scalable platform for integrating a large number of diverse waveguiding components on the same chip. It has reached successful commercialization in the transceiver market for data centers and 5G optical interconnects [ 1 , 2 , 3 ]. In most established data- and telecommunication applications, silicon photonic integrated circuits exploit guided modes rather than free-space radiation [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Free-Space Applications of Silicon Photonics: A Review

2022

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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.

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Section: Discussionmentioning

confidence: 99%

“…The electro-optic effect is weak in silicon, and, therefore, the phase shifters need to have sufficient lengths. A typical voltage-length product

is in the order of several V

cm [ 3 ]. There have been demonstrations of OPAs based on electro-optic phase shifters [ 9 , 13 , 38 , 39 , 40 ].…”

Section: Beam Steering Technologiesmentioning

confidence: 99%

Section: Integrated Lidar Single-pixel Imaging and Fso Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Free-Space Applications of Silicon Photonics: A Review

2022

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“…Silicon photonics has emerged as a leading platform for data communications, quantum technologies, on-chip sensors, etc [1][2][3]. By integrating large number of diverse photonic components in single chip enables silicon photonics as a scalable and reliable platform for advanced optical communication system [4]. Recently, another milestone of research is being under progress in silicon photonic neural network accelerators.…”

mentioning

confidence: 99%

Editorial: Recent developments in Si-based materials and devices

Perumalveeramalai,

Li,

Zheng

2023

Front. Phys.

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Editorial on the Research Topic Recent developments in Si-based materials and devicesDue to its compatibility with existing CMOS processes, Silicon photonics is promising technologies for optoelectronic integrated chip with the high degree of integration and low power consumption. Silicon photonics has emerged as a leading platform for data communications, quantum technologies, on-chip sensors, etc [1][2][3]. By integrating large number of diverse photonic components in single chip enables silicon photonics as a scalable and reliable platform for advanced optical communication system [4]. Recently, another milestone of research is being under progress in silicon photonic neural network accelerators. In particular, the waveguides and modulators based on silicon materials have been attracted a lot of attention along with the development of nano-micro fabrication techniques. However, the higher than desirable propagation loss plays significant bottle-neck problem in on-chip communication applications.Under the Research Topic "Recent Developments in Silicon-Based Materials and Devices" we have compiled a total of seven articles covering the recent advances in the design of Si-based modulators, resonators and edge couplers. We have given brief highlights of these articles. Pavesi gave a brief overview of silicon photonics, in particular the development of porous silicon for quantum devices and neural networks. Liu et al. has demonstrated the low cross talk arrayed waveguide grating (AWG) by integrating with micro ring resonator (MRR). The structure is designed so that the heater-tunable MRR acts as a filter to significantly reduce the noise of the AWG. The side lobe crosstalk level can be reduced from −16.3 to −26.8 dB, and the integrated AWG crosstalk has improved over the entire 3 dB bandwidth. Feng et al. have presented the numerical simulation study of the electro-optical SiGe/Si heterojunction modulator. A reduction in the modulation voltage of about 50% is observed for the SiGe/Si heterojunction compared to the silicon modulator with a similar modulation effect. Liang et al. has developed the adiabatic operation slope-loss algorithm (AO-SLA) for designing adiabatic waveguide tapers. The waveguide taper efficiency is improved with AO-SLA design compared with parabolic design and SLA design with broad operating bandwidth. Hu et al. has proposed a large wavelength bandwidth Mach-Zehnder modulator. The symmetrical structure of the designed modulator allows to increase the optical operating bandwidth by 56.1 nm compared to conventional Mach-Zehnder modulator. Similarly, Ma et al. has demonstrated the ultra-low coupling loss edge

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Nanophotonic devices for power-efficient communications

Cited by 2 publications

References 120 publications

Free-Space Applications of Silicon Photonics: A Review

Free-Space Applications of Silicon Photonics: A Review

Editorial: Recent developments in Si-based materials and devices

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