Transmission characteristics of 24.5 Gb/s atmospheric laser communication based on optical frequency comb

Song, Guangbin; Dong, Fang; Zhang, Ying

doi:10.1016/j.optcom.2020.125602

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…Optical frequency comb (OFC) is a spectrum composed of a series of evenly spaced discrete frequency components with coherent and stable phase relationship, which is widely used in optical communication, optical arbitrary waveform generation, microwave photon signal processing and high precision optical measurement [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Broadband optical frequency comb generation based on single electro-absorption modulation driven by radio frequency coupled signals

Pan

Fan

2022

Front. Optoelectron.

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Broadband optical frequency comb (OFC) generation based on a single electro-absorption modulator (EAM) is proposed. The EAM is driven by a radio frequency (RF) multi-frequency signal generated by a multiplication coupler composed of an electrical power splitter and an arithmetic circuit. Thus the number of comb-lines of the generated OFC can be increased. A complete theoretical model of OFC generation by an EAM driven by nth power of the RF source is established, and the performance of the OFC is analyzed by using OptiSystem software. The results show that, the number of comb-lines of the OFC is positively correlated with the number of multiplication of the RF source signal. The frequency spacing of the comb-lines is twice the frequency of the RF source signal and is tunable by adjusting the frequency of the RF source signal. Increasing chirp factor and modulation index of EAM could increase the number of comb-lines of the generated OFC. The amplitude of the RF source signal had little impact on the flatness of the OFC and the average OFC power. The scheme developed is not only simple and low-cost, but also can produce a large number of comb-lines. Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

Broadband optical frequency comb generation based on single electro-absorption modulation driven by radio frequency coupled signals

Pan

Fan

2022

Front. Optoelectron.

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“…Optical frequency comb (OFC) refers to a series of optical pulses with equally spaced spectral lines, which has favorable coherence and directionality 1, . It has been widely applied in arbitrary waveform generator 2,3 , optical metrology 4,5 , optical wavelength division multiplexing [6][7][8] , and other frontier fields. At present, OFC generation approaches mainly include laser mode locking technology 8 , micro ring resonance 9 , electro-optic modulator 10,11 , and gain-switching laser [12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Generation of tunable and broadband optical frequency comb based on gain-switching vertical-cavity surface-emitting laser driven by square wave signal under optical injection

Gou

Zhang

Luo

et al. 2022

Semiconductor Lasers and Applications XII

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We have experimentally investigated the generation of tunable and broadband Optical Frequency Comb (OFC) based on a gain-switching vertical-cavity surface emitting laser driven by a square wave signal under optical injection. During the experiment, the influences of modulation frequency fm and injection light wavelength λi on OFC performances are analyzed systematically. The experimental results indicate that under suitable operation parameters, an OFC with bandwidth of 77.0 GHz within 10 dB power variation and single sideband phase noise of -115.7 dBc/Hz @ 10 kHz can be generated. Also, during the modulation frequency range of 1.5 GHz - 2.8 GHz, broadband OFCs with bandwidth exceeding 70.0 GHz can be obtained based on the square-current modulated VCSEL under optical injection.

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“…Optical frequency comb (OFC) is composed of a series of equally spaced discrete comb lines, and these discrete comb lines corresponding to different frequency components can be simultaneously provided in a frequency band [1]. OFCs with good stability, high degree of coherence, as well as high repetition rates have been extensively applied in spectroscopy, metrology, optical communication, THz generation, optical arbitrary waveform generation, and other fields [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Many approaches for generating OFCs have been proposed and investigated, such as mode-locking, external modulation, and gain-switching of semiconductor lasers [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Generation of Broadband Optical Frequency Comb Based on a Gain-Switching 1550 nm Vertical-Cavity Surface-Emitting Laser under Optical Injection

et al. 2020

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In this work, broadband optical frequency comb (OFC) generation by a gain-switching vertical-cavity surface-emitting laser (VCSEL) subject to optical injection is investigated experimentally. During implementing the experiment, a 1550 nm VCSEL under a large signal current modulation is driven into the gain-switching state with a broad noisy spectrum. By further introducing an optical injection, a high performance OFC can be produced. The experimental results demonstrate that the power and wavelength of the injection light seriously affect the performance of the produced OFC. Under proper optical injection parameters, two sub-combs originating from two orthogonal polarization components of the VCSEL can splice into a broadband total-OFC. By selecting optimized operation parameters, a high quality total-OFC can be acquired, with stable comb lines, high coherence, wide bandwidth of 70.0 GHz (56.0 GHz) within 10 dB (3 dB) amplitude variation and low single sideband phase noise at the fundamental frequency below −120.6 dBc/Hz @ 10 kHz.

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Transmission characteristics of 24.5 Gb/s atmospheric laser communication based on optical frequency comb

Cited by 9 publications

References 15 publications

Broadband optical frequency comb generation based on single electro-absorption modulation driven by radio frequency coupled signals

Broadband optical frequency comb generation based on single electro-absorption modulation driven by radio frequency coupled signals

Generation of tunable and broadband optical frequency comb based on gain-switching vertical-cavity surface-emitting laser driven by square wave signal under optical injection

Generation of Broadband Optical Frequency Comb Based on a Gain-Switching 1550 nm Vertical-Cavity Surface-Emitting Laser under Optical Injection

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