Subwavelength Dielectric-Fiber-Based THz Coupler

Chen, Hung−Wen; Chiu, Chui-Min; Lai, Chih-Hsien; Kuo, Jeng-Liang; Chiang, Po-Jui; Hwang, Yuh-Jing; Chang, Hung-Chun; Sun, Chi‐Kuang

doi:10.1109/jlt.2009.2013154

Cited by 38 publications

(2 citation statements)

References 19 publications

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“…As the propagating fundamental mode in the subwavelength fiber is loosely confined and possesses low losses, efficient THz components such as directional coupler, power divider, band pass filter etc. can be realized for real-time signal processing applications [19]. The application of dielectric waveguides for high speed data transmission have been demonstrated recently [20,21].…”

Section: Introductionmentioning

confidence: 99%

Experimental Demonstration of 5 Gbps Data Transmission Using Long Subwavelength Fiber at 140 GHz

Nallappan

Guerboukha

Cao

et al. 2019

2019 IEEE Radio and Wireless Symposium (RWS)

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We present the experimental demonstration of real-time data transmission using a long subwavelength dielectric fiber in the Terahertz (THz) frequency range. A commercial 3D printing filament made of polypropylene material with the diameter of 1.75 mm is used as the solid core fiber for signal transmission. A photonics-based THz communication system operating at the carrier frequency of 140 GHz is used to characterize the fiber. The fiber is butt coupled in both emitter and detector antenna to minimize the free space coupling loss. The performance of the fiber is measured by recording the bit error rate (BER) for the transmitted data rate of 5 Gbps with a pattern length of 2 31 -1. By fixing the decision threshold to 0 mV, the BER of 10 -7 is recorded for the fiber length of 3 m and 5 m respectively at the emitter photocurrent value of 8 mA. A successful error free data transmission using a 1 m fiber with the diameter of 670 µm is demonstrated. In addition, the effect of bending in a graded index porous fiber made of low density polyethylene is also studied.

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Section: Introductionmentioning

confidence: 99%

Experimental Demonstration of 5 Gbps Data Transmission Using Long Subwavelength Fiber at 140 GHz

Nallappan

Guerboukha

Cao

et al. 2019

2019 IEEE Radio and Wireless Symposium (RWS)

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“…Among the merits of the simple THz subwavelength plastic wire ͑THz-SPW͒ include single mode sustentation, a high coupling efficiency, a low propagation loss 6 ͑on the order of 0.01 cm −1 ͒, as well as theoretically low dispersion in the transmission band. 7 THz-SPW has been successfully adopted in directional couplers, 8 endoscopic imaging, 9 and microscopy. 10 To our knowledge, the dispersion feature of THz-SPW has not been experimentally measured or analyzed.…”

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confidence: 99%

Subwavelength plastic wire terahertz time-domain spectroscopy

You

Liu

et al. 2010

Applied Physics Letters

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Articles you may be interested inUltra-broadband terahertz time-domain ellipsometric spectroscopy utilizing GaP and GaSe emitters and an epitaxial layer transferred photoconductive detector Appl. Phys. Lett.This work demonstrates the feasibility of a terahertz time-domain spectrometer based on a subwavelength-diameter plastic wire ͑SPW͒ for sensing applications. The dispersion property of the SPW is experimentally and theoretically studied. The SPW exhibits a low and controllable waveguide dispersion, which can be engineered by changing the core diameter, the core index, and the cladding index of the wire. Two white powders, tryptophan and polyethylene, deposited on the bottom of the wire can be successfully distinguished based on the waveguide dispersion of SPW. The SPW would be a promising candidate for combination with biochips for sensing minute molecules.

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Optical Fibers in Terahertz Domain

Humbert¹

2019

Handbook of Optical Fibers

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Subwavelength Dielectric-Fiber-Based THz Coupler

Cited by 38 publications

References 19 publications

Experimental Demonstration of 5 Gbps Data Transmission Using Long Subwavelength Fiber at 140 GHz

Experimental Demonstration of 5 Gbps Data Transmission Using Long Subwavelength Fiber at 140 GHz

Subwavelength plastic wire terahertz time-domain spectroscopy

Optical Fibers in Terahertz Domain

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