Enhanced NRZ multi-carriers modulation technologies for microresonators in THz technology applications

Addanki, Satish; Yupapin, P.; Amiri, Iraj Sadegh

doi:10.1016/j.rinp.2018.11.057

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Optical frequency combs (OFCs) generated in microresonators with whispering gallery modes (WGMs) are attractive for different applications and basic science, for example, spectroscopy [1,2], radio-frequency photonics [3], fiber optical telecommunication systems [4][5][6][7][8][9], quantum signal and information processing and non-classical communications [10], and so on (see the review [11] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Raman-assisted optical frequency combs generated in a silica microsphere in two whispering gallery mode families

Андрианов

Anashkina

2021

Laser Phys. Lett.

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Optical frequency combs (OFCs) generated in microresonators with whispering gallery modes are attractive for different applications and basic science. The effects associated with Raman nonlinearity are constantly being discovered and investigated experimentally and theoretically expanding the capabilities of microresonator OFCs. Here we obtain experimentally Raman-assisted nested OFCs in two different mode families with soliton-like (sech2-shape) spectral envelopes for each mode family in a silica microsphere. By comparing the experimental frequencies of spectral harmonics with the calculated eigenfrequencies we verified that the generated OFC with a larger bandwidth corresponds to the fundamental TE mode family, and the OFC with a smaller bandwidth to the TM mode family. We report the regime when the pump wavelength (without an OFC nearby) is in the normal dispersion region and Raman-assisted OFCs are generated in the anomalous dispersion region.

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Section: Introductionmentioning

confidence: 99%

Raman-assisted optical frequency combs generated in a silica microsphere in two whispering gallery mode families

Андрианов

Anashkina

2021

Laser Phys. Lett.

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“…modulation formats [7]- [15] and the MPL can increase the transmission performance and capacity, it has become an active research topic in recent years [16]- [23].…”

Section: Introductionmentioning

confidence: 99%

A Tunable Wireless Multicarrier Communication Employing Multiple Vector Modulation With 4QAM-OFDM on a Single Optical Carrier

Zhou

Huang

et al. 2019

IEEE Access

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A wireless communication system with tunable multicarrier based on optical comb is investigated in this paper. This study is an initial attempt to modulate multiple vector microwave signals with different frequency on a single optical carrier, and then transmit these optical signals over a standard singlemode fiber with the length of 30 km, and finally demodulate them at the remote unit via a photoelectric direct detector without strict frequency-phase synchronization. Such a design can decrease the equipment cost and improve the frequency efficiency. In the transmitting terminal unit (TTU), a flat multi-wavelength optical comb with 13 channels and the channel space of 10 GHz can be obtained by the microwave photonics technology. In the radio-frequency remote unit (RRU), we can not only obtain the wireless carriers with the frequency of 5 GHz, 10 GHz, 35 GHz, 40 GHz, 65 GHz, 70 GHz, 95 GHz, and 100 GHz via a photoelectric direct detector that are used for wireless transmission between the mobile terminal and the radio-frequency remote unit, but also get three optical sources that can be utilized for the uplink. Meanwhile, the wireless access rate can reach up to 20 Gbps between RRU and MT. In this arrangement, compared with a conventional microwave photonics link, the optical spectrum utilization efficiency and transmission rate not only can be doubled, but also the maintenance cost of RRU can be reduced greatly.

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Design and performance enhancement of terahertz photoconductive antenna based on nano-crossline contacts

Falih

Hubeatir

Fyath

2023

Optik

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Enhanced NRZ multi-carriers modulation technologies for microresonators in THz technology applications

Cited by 4 publications

References 30 publications

Raman-assisted optical frequency combs generated in a silica microsphere in two whispering gallery mode families

Raman-assisted optical frequency combs generated in a silica microsphere in two whispering gallery mode families

A Tunable Wireless Multicarrier Communication Employing Multiple Vector Modulation With 4QAM-OFDM on a Single Optical Carrier

Design and performance enhancement of terahertz photoconductive antenna based on nano-crossline contacts

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