scholarly journals State-of-the-Art and Perspectives on Silicon Waveguide Crossings: A Review

Micromachines ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 326 ◽  
Author(s):  
Sailong Wu ◽  
Xin Mu ◽  
Lirong Cheng ◽  
Simei Mao ◽  
H.Y. Fu
Keyword(s):  
Integrated Circuits ◽  
State Of The Art ◽  
Design Method ◽  
Photonic Devices ◽  
Research Directions ◽  
Subwavelength Grating ◽  
Silicon Waveguide ◽  
Mode Division Multiplexing ◽  
Silicon Photonic ◽  
Inverse Design Method

In the past few decades, silicon photonics has witnessed a ramp-up of investment in both research and industry. As a basic building block, silicon waveguide crossing is inevitable for dense silicon photonic integrated circuits and efficient crossing designs will greatly improve the performance of photonic devices with multiple crossings. In this paper, we focus on the state-of-the-art and perspectives on silicon waveguide crossings. It reviews several classical structures in silicon waveguide crossing design, such as shaped taper, multimode interference, subwavelength grating, holey subwavelength grating and vertical directional coupler by forward or inverse design method. In addition, we introduce some emerging research directions in crossing design including polarization-division-multiplexing and mode-division-multiplexing technologies.

scholarly journals Subwavelength-Grating Metamaterial Structures for Silicon Photonic Devices

2018 ◽  
Vol 106 (12) ◽  
pp. 2144-2157 ◽  
Author(s):  
Robert Halir ◽  
Alejandro Ortega-Monux ◽  
Daniel Benedikovic ◽  
Goran Z. Mashanovich ◽  
J. Gonzalo Wanguemert-Perez ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Subwavelength Grating ◽  
Silicon Photonic

Heterogeneous integration of silicon photonic devices and integrated circuits

2015 ◽  
Author(s):  
Hyundai Park ◽  
Brian R. Koch ◽  
Erik J. Norberg ◽  
Jonathon E. Roth ◽  
Byungchae Kim ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Photonic Devices ◽  
Heterogeneous Integration ◽  
Silicon Photonic

scholarly journals Low-voltage high-performance silicon photonic devices and photonic integrated circuits operating up to 30 Gb/s

2011 ◽  
Vol 19 (27) ◽  
pp. 26936 ◽  
Author(s):  
Gyungock Kim ◽  
Jeong Woo Park ◽  
In Gyoo Kim ◽  
Sanghoon Kim ◽  
Sanggi Kim ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
High Performance ◽  
Low Voltage ◽  
Photonic Integrated Circuits ◽  
Photonic Devices ◽  
Silicon Photonic

scholarly journals Ultra-Compact Power Splitters with Low Loss in Arbitrary Direction Based on Inverse Design Method

Photonics ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 516
Author(s):  
Yanhong Xu ◽  
Hansi Ma ◽  
Tong Xie ◽  
Junbo Yang ◽  
Zhenrong Zhang
Keyword(s):  
Integrated Circuit ◽  
Design Method ◽  
Photonic Devices ◽  
Inverse Design ◽  
Power Splitter ◽  
Direct Binary Search ◽  
Power Splitters ◽  
Inverse Design Method ◽  
Silicon Based ◽  
The Impact

The power splitter is a device that splits the energy from an input signal into multiple outputs with equal or uneven energy. Recently, the use of algorithms to intelligently design silicon-based photonic devices has attracted widespread attention. Thus, many optimization algorithms, which are called inverse design algorithms, have been proposed. In this paper, we use the Direct Binary Search (DBS) algorithm designed with three 1 × 3 power splitters with arbitrary directions theoretically. They have any direction and can be connected to other devices in any direction, which greatly reduces the space occupied by the optical integrated circuit. Through the simulation that comes about, we are able to get the insertion loss (IL) of the device we designed to be less than 5.55 dB, 5.49 dB, and 5.32 dB, separately. Then, the wavelength is 1530–1560 nm, so it can be used in the optical communication system. To discuss the impact of the footprint on device performance, we also designed another device with the same function as the second one from the above three devices. Its IL is less than 5.40 dB. Although it occupies a larger area, it has an advantage in IL. Through the design results, three 1 × 3 power splitters can be freely combined to realize any direction, multi-channel, ultra-compact power splitters, and can be better connected with different devices to achieve different functions. At the same time, we also show an example of a combination. The IL of each port of the combined 1 × 6 power splitter is less than 8.82 dB.

scholarly journals Multimode silicon photonics

Nanophotonics ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 227-247 ◽  
Author(s):  
Chenlei Li ◽  
Dajian Liu ◽  
Daoxin Dai
Keyword(s):  
Integrated Circuits ◽  
Silicon Photonics ◽  
Fundamental Mode ◽  
Optical Filters ◽  
Photonic Devices ◽  
Higher Order ◽  
Multimode Waveguide ◽  
Higher Order Modes ◽  
Silicon Photonic ◽  
On Chip

AbstractMultimode silicon photonics is attracting more and more attention because the introduction of higher-order modes makes it possible to increase the channel number for data transmission in mode-division-multiplexed (MDM) systems as well as improve the flexibility of device designs. On the other hand, the design of multimode silicon photonic devices becomes very different compared with the traditional case with the fundamental mode only. Since not only the fundamental mode but also the higher-order modes are involved, one of the most important things for multimode silicon photonics is the realization of effective mode manipulation, which is not difficult, fortunately because the mode dispersion in multimode silicon optical waveguide is very strong. Great progresses have been achieved on multimode silicon photonics in the past years. In this paper, a review of the recent progresses of the representative multimode silicon photonic devices and circuits is given. The first part reviews multimode silicon photonics for MDM systems, including on-chip multichannel mode (de)multiplexers, multimode waveguide bends, multimode waveguide crossings, reconfigurable multimode silicon photonic integrated circuits, multimode chip-fiber couplers, etc. In the second part, we give a discussion about the higher-order mode-assisted silicon photonic devices, including on-chip polarization-handling devices with higher-order modes, add-drop optical filters based on multimode Bragg gratings, and some emerging applications.

scholarly journals Photonic Packaging: Transforming Silicon Photonic Integrated Circuits into Photonic Devices

2016 ◽  
Vol 6 (12) ◽  
pp. 426 ◽  
Author(s):  
Lee Carroll ◽  
Jun-Su Lee ◽  
Carmelo Scarcella ◽  
Kamil Gradkowski ◽  
Matthieu Duperron ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Photonic Devices ◽  
Silicon Photonic
Sign in / Sign up

Export Citation Format

Share Document