Mode Conversion Models Based on Spatial Spectral Matching for Mode Division Multiplexing in Optical Fibers

In this paper, a mode conversion model is proposed to increase the capacity of optical fiber communication systems. In this model, a spatial spectral matching method is used to convert the original mode to the desired mode for mode division multiplexing in optical fibers. A binary phase spatial light modulator is employed on the Fourier plane as a spatial filter. Numerical results show that the original modes can be converted to the desired modes.

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ANALISIS REDAMANTERHADAP PERFORMANCEDENSE WAVELENGTH DIVISION MULTIPLEXING (DWDM)PADA SISTEM KOMUNIKASI SERAT OPTIKDENGAN METODE LINK POWER BUDGET DI PT. TELKOM PADANG (STUDI KASUS LINK PADANG – LUBUK BASUNG)

Voteteknika (Vocational Teknik Elektronika dan Informatika) ◽

10.24036/voteteknika.v3i1.5184 ◽

2015 ◽

Vol 3 (1) ◽

Author(s):

Farta Wendy Herdianta ◽

Hanesman Hanesman ◽

Delsina Faiza

Keyword(s):

Optical Fiber ◽

Optical Fibers ◽

Wavelength Division Multiplexing ◽

Power Output ◽

Communication Systems ◽

Single Mode ◽

Optical Fiber Communication ◽

Power Budget ◽

Fiber Communication ◽

The Core

The research was conducted by analyzing the optical fiber attenuation of the DWDM performance in terms of power received on optical fiber communication systems link Padang-Lubuk cone in PT. Telkom Padang. Optical fiber has a very small damping. Therefore optical fibers become the primary choice in telecommunications networks. To improve the transmission quality is better then the use of DWDM technology, DWDM technology is a method to insert a number of channels were transmitted in a single optical fiber. Instruments in this study is the Power Meter and OTDR JDSU MTS-2000 type, the type of cable used G.655 Single Mode type. Link Power Budget method is used to determine the performance of DWDM caused by attenuation based on the value of the received power output receiver. On the link Padang - Lubuk cone highest attenuation occurs in core 1 of 29.742dB with 100.035 km cable lengths, and the core 10 of 31.8 dB with 119.998 km cablelengths. Based on the large fault or attenuation/km core 1 of 0.297 dB/km, the core 10 of 0.265 dB/km and the standard ITU-T was 0.35 dB/km. Value attenuation/km core 1 and core 10 is still in normal conditions and under standard ITU-T 0.35 dB/km. Based on optical fiber attenuation, the results of analysis of the link power budget is the value of Rx is smaller than the value of Rx sensitivity of -27 dBm, it can be said performance DWDM optical fiber communication systems in normal and can be used to operate because the power output can still be accepted by receiver in the device. Keywords:optical fiber cable, optical fiber attenuation, DWDM, link power budget.

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Numerical analysis of intermodal delay in few-mode fibers for mode division multiplexing in optical fiber communication systems

Optoelectronics Letters ◽

10.1007/s11801-012-1110-7 ◽

2012 ◽

Vol 8 (2) ◽

pp. 138-141

Author(s):

Abid Munir ◽

Xiang-jun Xin ◽

Bo Liu ◽

Abdul Latif ◽

Aftab Hussain ◽

...

Keyword(s):

Numerical Analysis ◽

Optical Fiber ◽

Communication Systems ◽

Optical Fiber Communication ◽

Fiber Communication ◽

Mode Division Multiplexing

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Novel Manchester-Based Multilevel Signaling for High-Speed Optical Communication Systems

Journal of Optical Communications ◽

10.1515/joc-2018-0139 ◽

2019 ◽

Vol 0 (0) ◽

Cited By ~ 1

Author(s):

Festus Idowu Oluwajobi ◽

Nguyen Dong-Nhat ◽

Amin Malekmohammadi

Keyword(s):

Communication Systems ◽

High Speed ◽

Chromatic Dispersion ◽

Optical Fiber Communication ◽

Pulse Amplitude ◽

Calculation Model ◽

Fiber Communication ◽

Receiver Sensitivity ◽

Communication Links ◽

Dispersion Tolerance

AbstractIn this paper, the performance of a novel multilevel signaling based on Manchester code namely four-level Manchester Coding (4-MC) technique is investigated for next generation high-speed optical fiber communication links. The performance of 4-MC is studied and compared with conventional Manchester modulation and four-level pulse amplitude modulation (4-PAM) formats in terms of receiver sensitivity, spectral efficiency and dispersion tolerance at the bit rate of 40 Gb/s. The bit error rate (BER) calculation model for the proposed multilevel scheme has also been developed. The calculated receiver sensitivity and the chromatic dispersion tolerance at the BER of 10–9 of the proposed scheme are −22 dBm and 67.5 ps/nm, respectively. It is observed that, 4-MC scheme is superior in comparison to 4-PAM by 3.5 dB in terms of receiver sensitivity in back-to-back scenario. Therefore, the proposed scheme can be considered as an alternative to current 4-PAM system.

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