scholarly journals Microsphere-Based Optical Frequency Comb Generator for 200 GHz Spaced WDM Data Transmission System

Photonics ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 72
Author(s):  
Elena A. Anashkina ◽  
Maria P. Marisova ◽  
Alexey V. Andrianov ◽  
Rinat A. Akhmedzhanov ◽  
Rihards Murnieks ◽  
...  
Keyword(s):  
Wavelength Division Multiplexing ◽  
Data Transmission ◽  
Frequency Comb ◽  
Free Spectral Range ◽  
Transmission System ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Free Data ◽  
Data Transmission System ◽  
Kerr Coefficient

Optical frequency comb (OFC) generators based on whispering gallery mode (WGM) microresonators have a massive potential to ensure spectral and energy efficiency in wavelength-division multiplexing (WDM) telecommunication systems. The use of silica microspheres for telecommunication applications has hardly been studied but could be promising. We propose, investigate, and optimize numerically a simple design of a silica microsphere-based OFC generator in the C-band with a free spectral range of 200 GHz and simulate its implementation to provide 4-channel 200 GHz spaced WDM data transmission system. We calculate microsphere characteristics such as WGM eigenfrequencies, dispersion, nonlinear Kerr coefficient with allowance for thermo-optical effects, and simulate OFC generation in the regime of a stable dissipative Kerr soliton. We show that by employing generated OFC lines as optical carriers for WDM data transmission, it is possible to ensure error-free data transmission with a bit error rate (BER) of 4.5 × 10−30, providing a total of 40 Gbit/s of transmission speed on four channels.

Monolithic optical frequency comb based on quantum dashed mode locked lasers for Tb/s data transmission

2015 ◽  
Author(s):  
A. Martinez ◽  
C. Calò ◽  
V. Panapakkam ◽  
K. Merghem ◽  
R. T. Watts ◽  
...  
Keyword(s):  
Data Transmission ◽  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Mode Locked Lasers

scholarly journals Simulated Performance Analysis of an Optical Frequency Comb in a WDM System

2017 ◽  
Vol 16 (1) ◽  
pp. 53-60
Author(s):  
Rifat Nazneen ◽  
Ebad Zahir
Keyword(s):  
Wavelength Division Multiplexing ◽  
Frequency Comb ◽  
Research Work ◽  
Fiber Amplifier ◽  
Channel Length ◽  
Optical Frequency Comb ◽  
Critical Parameters ◽  
Optical Frequency ◽  
Erbium Doped Fiber Amplifier ◽  
Highly Nonlinear

This paper presents the research work for a proposed novel scheme for generating a flat and equally spaced optical frequency comb using a simulated layout using Optisystem. Three pump sources at 1 nm wavelength apart are injected along with a 25 GHz RF signal having different amplitudes into a cascade of Dual-Drive Mach-Zehnder Modulator and Electro-Absorption Modulator and multiple highly nonlinear fiber loops. The initial scheme is using Four Wave - Mixing and yields a comb of 27 lines with uneven gain and a 6 dBm power deviation. After characterizing the response by exploring critical parameters such as pump power, frequency spacing, dispersion effect, Erbium Doped Fiber Amplifier and DC bias of the modulators, the researchers were able to reduce the power deviation down to 2 dBm at the expense of some comb lines. This final optimized scheme was then evaluated for a preliminary Wavelength Division Multiplexing setup having only five channels/modes at 10 Gb/s for a channel length of 1 km. Each of the received de-multiplexed channels was evaluated through recorded data in the form of Bit Error Rate and Quality-factor and the final results are shown to be quite promising.

scholarly journals Multi-wavelength 128 Gbit/s/λ PAM4 optical transmission enabled by a 100 GHz quantum dot mode-locked optical frequency comb

2021 ◽  
Author(s):  
Shujie Pan ◽  
Hongguang Zhang ◽  
Zizhuo Liu ◽  
Mengya Liao ◽  
Mingchu Tang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Wavelength Division Multiplexing ◽  
High Speed ◽  
High Efficiency ◽  
Frequency Comb ◽  
Low Cost ◽  
Pulse Amplitude ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Light Sources

Abstract Semiconductor mode-locked lasers (MLLs) with extremely high repetition rates are promising optical frequency comb (OFC) sources for their usage as compact, high-efficiency, and low-cost light sources in high-speed dense wavelength-division multiplexing (DWDM) transmissions. The fully exploited conventional C- and L- bands require the research on O-band to fulfil the transmission capacity of the current photonic networks. In this work, we present a passive two-section InAs/InGaAs quantum-dot (QD) MLL-based OFC with a fundamental repetition rate of ~100 GHz operating at O-band wavelength range. The specially designed device favours the generation of nearly Fourier-transform-limited pulses in the entire test range by only pumping the gain section while with the absorber unbiased. The typical integrated relative intensity noise (RIN) of the whole spectrum and a single tone are -152 dB/Hz and -137 dB/Hz in the range of 100 MHz to 10 GHz, respectively. Back-to-back (B2B) data transmissions for 7 selected tones have been realised by employing a 64 Gbaud four-level pulse amplitude modulation format (PAM-4). The demonstrated performance shows the feasibility of the InAs QD MLLs as a simple structure, easy operation, and low power consumption OFC sources for high-speed fibre-optic communications.

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