Tapered waveguide design for mode conversion in mode division multiplexing (MDM)

Mahadzir, N. A.; Amphawan, Angela; Masunda, Tendai; Menon, P. Susthitha; Jalar, Azman; Bakar, Maria Abu; Ismail, Ahmad Ghadafi

doi:10.1080/02726343.2021.1986783

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…The modulated optical signals are collimated and linearly polarized, then inserted into tapered waveguides [18] for MDM of OAM +1, OAM +2, OAM +3 and OAM + 4 modes.…”

Section: Communication Model System and Parametersmentioning

confidence: 99%

See 1 more Smart Citation

Performance Analysis of OAM-Based Advanced Symbol Modulation Schemes for OFDM Over FSO System

Ramly¹,

Amphawan²,

Neo³

2022

Proceedings of the International Conference on Computer, Information Technology and Intelligent Computing (CITIC 2022)

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Previous orthogonal frequency division multiplexing over free space optics (OFDM-FSO) systems relied on signal strength, wavelength, and polarisation to multiplex data streams in order to improve signal quality and feasible connection range. Alternatively, this work leverages on orbital angular momentum (OAM) mode division multiplexing with multiple OAM modes (OAM + 1, OAM +2, OAM +3, OAM +4) encountering different modal coupling effects under atmospheric turbulence. Advanced modulation and coding schemes (QPSK, 16QAM, and 64QAM) are deployed to improve the bit-error rate (BER), packet error rate (PER), and achieve a connection range of 1000 m in a free space optical link. OAM +1 was shown to achieve average BER and PER of 10 -3 at SNR equals to 22 dB and 30 dB respectively.

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“…The modulated optical signals are collimated and linearly polarized, then inserted into tapered waveguides [18] for MDM of OAM +1, OAM +2, OAM +3 and OAM + 4 modes.…”

Section: Communication Model System and Parametersmentioning

confidence: 99%

“…The OAM modes were obtained using another set of tapered waveguides to reverse the effects of the turbulent channel based on [18]. Modal decomposition based on [20] was performed to obtain the power coupling coefficients of the output OAM modes.…”

Section: Communication Model System and Parametersmentioning

confidence: 99%

Performance Analysis of OAM-Based Advanced Symbol Modulation Schemes for OFDM Over FSO System

Ramly¹,

Amphawan²,

Neo³

2022

Proceedings of the International Conference on Computer, Information Technology and Intelligent Computing (CITIC 2022)

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“…MMUX/MDEMUX devices constitute the cornerstone of the MDM communication system and have been extensively researched. This encompasses various types of devices, including photonic-lantern-based multiplexers [15] , waveguide devices [16] , diffraction devices [17] , liquid crystals [18] , and so on. The data exchange between different channels is an indispensable function in the optical communication network.…”

Section: Introductionmentioning

confidence: 99%

LP modes exchange based on multiplane light conversion

Zhong,

Lin,

Fang

et al. 2024

Chin. Opt. Lett.

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Data exchange between different mode channels is essential in the optical communication network with mode-division multiplexing (MDM). However, there are challenges in realizing mode exchange with low insert loss, low mode crosstalk, and high integration. Here, we designed and fabricated a mode exchange device based on multiplane light conversion (MPLC), which supports the transmission of LP01, LP11a, LP11b, and LP21 modes in the C-band and L-band. The simulated exchanged mode purities are greater than 85%. The phase masks were fabricated on a silicon substrate to facilitate the integration with optical systems, with an insert loss of less than 2.2 dB and mode crosstalk below −21 dB due primarily to machining inaccuracies and alignment errors. We carried out an optical communication experiment with 10 Gbit/s OOK and QPSK data transmission at the wavelength of 1550 nm and obtained excellent performance with the device. It paves the way for flexible data exchange as a building block in MDM optical communication networks.

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A detailed investigation of lanthanum substituted bismuth ferrite for enhanced structural, optical, dielectric, magnetic and ferroelectric properties

Ahmed

Mustafa²,

Subhani³

et al. 2022

Results in Physics

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Tapered waveguide design for mode conversion in mode division multiplexing (MDM)

Cited by 5 publications

References 13 publications

Performance Analysis of OAM-Based Advanced Symbol Modulation Schemes for OFDM Over FSO System

Performance Analysis of OAM-Based Advanced Symbol Modulation Schemes for OFDM Over FSO System

LP modes exchange based on multiplane light conversion

A detailed investigation of lanthanum substituted bismuth ferrite for enhanced structural, optical, dielectric, magnetic and ferroelectric properties

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