Silicon-based on-chip diplexing/triplexing technologies and devices

Shi, Yaocheng; Chen, Jingye; Xu, Hongnan

doi:10.1007/s11432-018-9390-0

Cited by 10 publications

(5 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 23 ] A diplexer is an integral part of a communication network operating at RF [ 22,24 ] and optical frequencies. [ 25,26 ] However, at THz frequencies development of diplexer is still at an early stage. For instance, the first THz leaky waveguide diplexer showed an aggregate data speed of 50 Gbit s −1 for free‐space communication.…”

Section: Introductionmentioning

confidence: 99%

150 Gbps THz Chipscale Topological Photonic Diplexer

Gupta,

Kumar,

Pitchappa

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

Photonic diplexers are being widely investigated for high data transfer rates in on‐chip communication. However, dividing the available spectrum into non‐overlapping multicarrier frequency sub‐bands has remained a challenge in designing frequency‐selective time‐invariant channels. Here, we report an on‐chip topological diplexer exhibiting terahertz frequency band filtering through Klein tunnelling of topological edge modes. The silicon topological diplexer chip facilitates two high‐speed channels with quadrature amplitude modulation (QAM) over a broad bandwidth of 12.5 GHz each. These channels operate at carrier frequencies of 305 GHz and 321.6 GHz, achieving a combined diplexer capacity of 150 Gbit/s. To ensure minimal interference between adjacent channels, a guard band is implemented. Topologically protected edge modes suppress the frequency selective fading of the broadband signals and hold promise for diverse integrated photonic applications spanning terahertz and telecommunication realms, including the design of lossless topological multiplexers, interconnects, antennas, and modulators for the sixth to X generation (6G to XG) wireless.This article is protected by copyright. All rights reserved

show abstract

Section: Introductionmentioning

confidence: 99%

150 Gbps THz Chipscale Topological Photonic Diplexer

Gupta,

Kumar,

Pitchappa

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

show abstract

“…Wavelength Division Multiplexing (WDM) device is important for high-speed optical communication to broaden the channel bandwidth and increase the system capacity [1]. For silicon photonic, SOI-based Wavelength division (de)multiplexing devices include arrayed waveguide gratings (AWGs) [2], planar concave gratings (PCGs) [3], microring resonators (RR) [4].…”

Section: Introductionmentioning

confidence: 99%

A six-channel angled multimode interferometer in silicon nitride for wavelength division multiplexing

Chen,

Liao,

Wang

2023

6th Optics Young Scientist Summit (OYSS 2023)

View full text Add to dashboard Cite

Silicon nitride (SiN) is an ideal material which is compatible with complementary metal-oxide-semiconductor (CMOS) technology. Its advantages include suitability for a large spectral range, low propagation loss and low thermo-optic coefficient, etc. Wavelength division (de)multiplexing (WDM) device is a crucial component for optical transmission networks. In this paper, we demonstrate a six-channel WDM device built with angled multimode interferometer (AMMI) structure in SiN material. Using the first-and second-order self-imaging effects in the multimode waveguides, the number of the multiplexed channels is increased from 3 to 6, without increasing the overall length of the device. The device is designed to operate in the C+L band, and the central wavelength spacing between the neighboring channels is 20nm. The simulation results show that the insertion loss of the device in each channel is less than 0.81dB and the averaged crosstalk of the channels is ~14.9dB. Meanwhile, the device also exhibits low temperature sensitivity and large fabrication tolerance, which is suitable for mass production in commercial foundries.

show abstract

“…In order to further exploit the communication capacities on the optical fiber network, different types of multiplexing techniques have been taken advantaged of independently or jointly. Among these techniques, polarization and wavelength multiplexing are two important ones [1][2]. Due to the mature of the silicon photonics, which is compatible with complementary-metal-oxide-semiconductor (CMOS) technology, various types of polarization or wavelength multiplexing devices have been proposed on silicon-on-insulator (SOI) platform [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Polarization/wavelength multiplexing devices realized by silicon nitride subwavelength grating structures

Zheng

Peng

Wang

2022

International Symposium on Silicon-Based Optoelectronics (ISSBO 2022)

View full text Add to dashboard Cite

We present a wavelength multiplexing and polarization multiplexing device assisted by subwavelength grating (SWG), implemented on a 300-nm-tall silicon nitride (SiN) platform. The multiplexing device consists of three SiN waveguides- WG1, WG2 and WG3. The bridging waveguide WG2 between WG1 and output waveguide WG3 is designed into SWG structure, which executes the mode coupling thus multiplexing functions according to the principle of phase matching. The results are as follows: for wavelength multiplexing, the insertion loss (IL) is 0.54 dB and 0.58 dB at the center wavelength of O-band and C-band, which is 1310 nm and 1550 nm, respectively. The crosstalk (CT) is -12.5 dB and -23 dB at these two wavelength. The 1-dB bandwidth is larger than 170 nm for both bands. For polarization multiplexing, the IL is 0.44 dB and 0.64 dB at the wavelength of 1310 nm and 1550 nm, with the crosstalk lower than -16.2 dB and -22.8 dB. The 1-dB bandwidth is larger than 180 nm for the two bands.

show abstract

Silicon-based on-chip diplexing/triplexing technologies and devices

Cited by 10 publications

References 65 publications

150 Gbps THz Chipscale Topological Photonic Diplexer

150 Gbps THz Chipscale Topological Photonic Diplexer

A six-channel angled multimode interferometer in silicon nitride for wavelength division multiplexing

Polarization/wavelength multiplexing devices realized by silicon nitride subwavelength grating structures

Contact Info

Product

Resources

About