909.5 Tbit/s Dense SDM and WDM Transmission Based on a Single Source Optical Frequency Comb and Kramers-Kronig Detection

Kong, Deming; Silva, Edson Porto da; Sasaki, Y.; Aikawa, Kazuhiko; Ros, Francesco Da; Galili, Michael; Morioka, Toshio; Hu, Hao; Oxenloewe, Leif Katsuo

doi:10.1109/jstqe.2020.3024004

Cited by 9 publications

(2 citation statements)

References 23 publications

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“…3. It consists of 2 16 pseudo-random bit sequence generators followed by a 4-bit DQPSK precoder. The signal from the two output ports of the precoder is further followed by an electrical amplifier that controls the RF signal applied to both MZM modulators.…”

Section: Data Modulation and Multiplexingmentioning

confidence: 99%

“…The requirement of massively parallel laser sources can be addressed by replacing them with optical frequency comb-based multichannel sources. [7][8][9][10][11][12][13][14][15][16][17] It becomes an exciting approach as it is generated by using a single seed laser only, which makes the system more attractive in terms of low energy consumption, compact size and cost. The selection of optical frequency comb for a multichannel source also plays an important role.…”

Section: Introductionmentioning

confidence: 99%

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Design of a single laser source-based extreme parallel data-transmission link

Sharma,

Singh

2024

Opt. Eng.

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Exponentially increasing network traffic requires hundreds of terabits per second data transmission rate, consuming around 9% of the electricity worldwide. Massive parallel optical links demanded to support the data transmission capacity, but not favorable in terms of scalability, energy consumption, complexity, cost, and size. A single laser source followed with semiconductor optical amplifier based optical frequency comb enabling data transmission of 6.78 Tbps over an 80 km singlemode fiber (SMF) is a possible solution to reduce the energy consumption, complexity, cost, and area. The data transmission over 80 km SMF also makes it suitable for inter-data center communication. So, in the proposed work, the evenly spaced and phase-coherent 113 frequency lines individually modulated using differential quadrature phase-shift keying at the bit rate of 30 Gb∕s and then multiplex using polarization and wavelength multiplexing technique to transmit signal over 94.4 km (80 km single core and single mode fiber and 14.4 km dispersion compensating fiber). The proposed work has also carried out the detailed analysis of optical frequency comb parameters required for its application in telecommunication. Following the procedure mentioned earlier, a signal at the minimum quality factor of 23 dB with total transmission rate of 6.78 THz for 226 users is achieved at the receiving end, making the work suitable for telecommunication and inter-data-center communication applications.

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Section: Data Modulation and Multiplexingmentioning

confidence: 99%