kHz Closed Loop Interferometric Technique for Coherent Fiber Beam Combining

Antier, Marie; Bourderionnet, Jérôme; Larat, Christian; Lallier, Éric; Lenormand, Eric; Primot, Jérôme; Brignon, A.

doi:10.1109/jstqe.2014.2302444

Cited by 55 publications

(21 citation statements)

References 13 publications

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“…Le record du nombre de fibres (64) combinées est détenu avec cette technique [7]. Les dernières études expérimentales ont montré que la combinaison cohérente de 10 000 fibres est envisageable avec des composants disponibles sur le marché [8]. Cette architecture laser peut également être adaptée au régime femtoseconde haute cadence et sera mise en oeuvre dans le cadre du projet collaboratif XCAN entre l'École polytechnique et Thales.…”

Section: Mesure De La Phaseunclassified

La combinaison cohérente de fibres amplificatrices

et al. 2015

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Section: Mesure De La Phaseunclassified

La combinaison cohérente de fibres amplificatrices

et al. 2015

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“…This architecture proposes a short-pulsed high average power and a high peak-power laser source comprised of several phased combined fibers. Initial work has demonstrated continuous-wave coherent combination of 64 individual fibers [12] and 16 fiber [13] amplifiers phased with λ∕20 rms phasing error in a loop time of 1 ms. It is worth mentioning that combined peak power has reached 5.4 GW [14] and average powers near the kW level [15].…”

Section: Introductionmentioning

confidence: 99%

Design and properties of a coherent amplifying network laser

Soulard¹,

Quinn²,

Mourou³

2015

Appl. Opt.

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The coherent amplifying network laser is based on an array of thousands of active laser fibers coherently combined to generate high peak-power pulses at a high repetition rate. To achieve such a massive network, new combination architectures are presented here. They are based on implementing a spherical array of amplifying fibers, thus removing the need for transport fibers from the initial scheme. These designs present an advantage in terms of scalability leading to significant reduction of the temporal fluctuations compared to those of a conventional high peak-power laser. Noise evolution with fiber number is calculated using a perturbative analysis of each channel parameters (phase, signal intensity, beam profile).

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“…The coherent addition means that the optical phases of all the channels are locked, either in a passive way [1,2] or, using active phase lock loops (PLLs) [3][4][5]. This last approach, we chose for this work, is commonly preferred when a large number of fibres are considered (typically above 10 to 20).…”

Section: Introductionmentioning

confidence: 99%

“…First prerequisite for a PLL is to measure the phase perturbation between the propagation channels. This can be done using various techniques [3][4][5], among which we chose an interferometric approach, which has the advantages of being collective and scalable to potentially very high number of fibres (up to hundreds) [5].…”

Section: Introductionmentioning

confidence: 99%

PLAT4M: Progressing Silicon Photonics in Europe

et al. 2015

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Photonic integration is an appealing technology for emerging applications in communications, medical diagnostics and sensing. Silicon Photonics presents a highly attractive solution for large-scale photonic integration, principally because it is based on well-established CMOS-fabrication technologies. However, Silicon photonics can be difficult and expensive to implement, as it requires complex device design, fabrication and packaging capabilities. Photonic Libraries And Technology for Manufacturing (PLAT4M) is a major European project that brings together the key capabilities required to develop solutions for a range of Silicon photonic-based applications. This paper will present an overview of the PLAT4M project. It will present, in detail, a key application demonstrator (Coherent Beam Combiner), highlighting the ability of the project team to develop an integrated Silicon Photonic sub-system, from design, through to device fabrication, packaging and final test. The paper also highlights the need to consider additional capabilities besides device fabrication, such as packaging, which are critical to achieving fully operational sub-systems.

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kHz Closed Loop Interferometric Technique for Coherent Fiber Beam Combining

Cited by 55 publications

References 13 publications

La combinaison cohérente de fibres amplificatrices

La combinaison cohérente de fibres amplificatrices

Design and properties of a coherent amplifying network laser

PLAT4M: Progressing Silicon Photonics in Europe

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