Dynamic range of externally modulated analog optical links: optical amplification versus coherent detection

Fong, T.K.; Tabara, M.; Sabido, IX D.J.M.; Kazovsky, L.G.

doi:10.1109/68.275447

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…In addition, none of the above corn- Nortel parisons have included Erbium doped fiber amplifiers (EDFA), which are becoming increasingly common in long distance optical links. These optical amplifiers overcome fiber losses and increase receiver sensitivity [14], but also introduce noise. In particular, the amplified spontaneous emission (ASE) noise scales linearly with optical power so it is important to find a modulator that is not only linear but also has a small optical carrier or large low power efficiency.…”

Section: Introductionmentioning

confidence: 99%

Comparison and Linearization of LiNbO3 and Semiconductor Modulators

Chen¹

2001

Journal of Optical Communications

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Section: Introductionmentioning

confidence: 99%

Comparison and Linearization of LiNbO3 and Semiconductor Modulators

Chen¹

2001

Journal of Optical Communications

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“…be obtained with an ensemble of many measurements took from a local area. A baseband equivalent of the multipath fading channel is given in [55] as follows:…”

Section: Multipath Fadingmentioning

confidence: 99%

Optimization of optical signal-to noise ratio by α profile multimode fibre in wireless over fibre link

Khan¹

2021

Preprint

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The demand of bandwidth in mobile communication is growing exponentially day-by-day, as the number of users have been increasing drastically over the span of last five years. Fibre optics has attracted much attention due to its promising performance and operational cost reduction. In this thesis, the feasibility of using multimode fibre as an inexpensive cell feed in indoor system is investigated. The proposed architecture is analyzed using signal to noise ratio versus GI multimode fibre profile parameter α, cumulative signal to noise ratio, and multipath fading in indoor environment. The objectives of this thesis are: (i)designing COFDM based radio-over-fibre communication system, (ii)analyzing the downlink and uplink performance considering impairements in the fibre and wireless channels and investigating the effect of core refractive index profile (α) on graded index RoF link, (iii)investigating the effect of COFDM cyclic prefix to the graded index multimode fibre dispersion. The performance is evaluated through theoretical analysis and simulations using Matlab. The downlink and uplink analysis are performed considering all the impairements from the air interface and the RoF link. Thereafter, numerical results are generated for the downlink and uplink to illustrate the performance of the COFDM-RoF architecture.

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“…An additional advantage of balanced detection is that the effect of optical relative intensity noise (RIN) is significantly reduced owing to the cancelation of DC and baseband terms. Generally, RIN and shot noise [16] are the two kinds of dominant noises in an analog-optical link [17], thus reducing the effect of RIN will surely benefit the signal dynamic range of the system [18]. Therefore, balanced detection is strongly preferred over single-ended detection.…”

Section: Balanced Coherent Optical Detectionmentioning

confidence: 99%

Ring resonator-based broadband photonic beam former for phased array antennas

Zhuang¹

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Dynamic range of externally modulated analog optical links: optical amplification versus coherent detection

Cited by 7 publications

References 5 publications

Comparison and Linearization of LiNbO3 and Semiconductor Modulators

Comparison and Linearization of LiNbO3 and Semiconductor Modulators

Optimization of optical signal-to noise ratio by α profile multimode fibre in wireless over fibre link

Ring resonator-based broadband photonic beam former for phased array antennas

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