A new compact circuit-level model of semiconductor lasers: investigation of relative intensity noise and frequency noise spectra

Darman, Mohsen; Fasihi, Kiazand

doi:10.1080/09500340.2017.1321152

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…Noise processes in laser systems, which depend on properties of both the gain medium and the laser cavity, are typically expressed as either double-or single-sided PSDs [27][28][29][30][31][32][33][34][35] . For consistency, results presented here are in terms of single-sided PSDs.…”

Section: Models Of Laser Noisementioning

confidence: 99%

Limits on atomic qubit control from laser noise

et al. 2022

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Technical noise present in laser systems can limit their ability to perform high fidelity quantum control of atomic qubits. The ultimate fidelity floor for atomic qubits driven with laser radiation is due to spontaneous emission from excited energy levels. The goal is to suppress the technical noise from the laser source to below the spontaneous emission floor such that it is no longer a limiting factor. It has been shown that the spectral structure of control noise can have a large influence on achievable control fidelities, while prior studies of laser noise contributions have been restricted to noise magnitudes. Here, we study the unique spectral structure of laser noise and introduce a metric that determines when a stabilised laser source has been optimised for quantum control of atomic qubits. We find requirements on stabilisation bandwidths that can be orders of magnitude higher than those required to simply narrow the linewidth of a laser. The introduced metric, the χ-separation line, provides a tool for the study and engineering of laser sources for quantum control of atomic qubits below the spontaneous emission floor.

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Section: Models Of Laser Noisementioning

confidence: 99%

Limits on atomic qubit control from laser noise

et al. 2022

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show abstract

“…Noise processes in laser systems, which depend on properties of both the gain medium and the laser cavity, are typically expressed as either double-or single-sided PSDs [26][27][28][29][30][31][32][33][34]. For consistency, results presented here are in terms of single-sided PSDs.…”

Section: B Models Of Laser Noisementioning

confidence: 99%

“…A DPSSL typically has higher intensity noise than an ECDL due to pump noise amplification, and lower frequency noise due to a longer laser cavity. ECDLs typically have relaxation oscillation frequencies, ω rlx , of order GHz [26], whereas for DPSSLs they are sub-MHz [28][29][30].…”

Section: B Models Of Laser Noisementioning

confidence: 99%

Limits on atomic qubit control from laser noise

Day¹,

Low²,

White³

et al. 2021

Preprint

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Technical noise present in laser systems can limit their ability to perform high fidelity quantum control of atomic qubits. The ultimate fidelity floor for atomic qubits driven with laser radiation is due to spontaneous emission from excited energy levels. The goal is to suppress the technical noise from the laser source to below the spontaneous emission floor such that it is no longer a limiting factor. It has been shown that the spectral structure of control noise can have a large influence on achievable control fidelities, while prior studies of laser noise contributions have been restricted to noise magnitudes. Here, we study the unique spectral structure of laser noise and introduce a new metric that determines when a stabilised laser source has been optimised for quantum control of atomic qubits. We find requirements on stabilisation bandwidths that can be orders of magnitude higher than those required to simply narrow the linewidth of a laser. We introduce a new metric, the χ-separation line, that provides a tool for the study and engineering of laser sources for quantum control of atomic qubits below the spontaneous emission floor.

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“…Ma et al [6] proposed a reliable collaborative filtering algorithm, which can reduce false scores and redundant information in e-commerce and improve the accuracy of recommendation results. Darman and Fasihi [7] broke the limitations of traditional collaborative filtering algorithms and took into account the changing interest of users. A similarity method based on dynamic trust is proposed to improve the performance of the proposed algorithm.…”

Section: State Of the Artmentioning

confidence: 99%

Application and Exploration of Computing Architecture Based on Big Data Platform

Hou¹

2018

Proceedings of the 2018 International Symposium on Communication Engineering &Amp; Computer Science (CECS 2018)

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To discuss how to provide a reliable platform for processing big data, by studying some sub projects in core technology and its ecological environment, an extensible big data application system architecture used for processing large scale data sets is implemented. In addition, the architecture is organized into four levels in the form of hierarchical model: platform layer, data layer, business logic layer, and application layer. From the angle of hierarchy, the optimization of Hadoop and HBase, MapReduce programming mode, Mahout technology details and clustering algorithm are discussed. In combination with the customer value hierarchy model and neural network classification model, a distributed brand value model is proposed and successfully deployed on the framework application layer. As a result, it improves the research and implementation of the whole system architecture. Finally, the research contents of each layer are summarized, and the future research directions of the corresponding parts are discussed.

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A new compact circuit-level model of semiconductor lasers: investigation of relative intensity noise and frequency noise spectra

Cited by 4 publications

References 14 publications

Limits on atomic qubit control from laser noise

Limits on atomic qubit control from laser noise

Limits on atomic qubit control from laser noise

Application and Exploration of Computing Architecture Based on Big Data Platform

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