Optimized single-shot laser ablation of concave mirror templates on optical fibers

Ruelle, Thibaud; Poggio, Martino; Braakman, Floris

doi:10.1364/ao.58.003784

Cited by 7 publications

(3 citation statements)

References 52 publications

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“…The FFPC is formed by two fiber mirrors which are machined using a CO 2 laser ablation technique 25 . Ruelle et al 26 describes the ablation procedure and the fitting procedure used to extract the geometrical characteristics of the fiber mirrors, e.g. their radius of curvature ROC, depth t, and spherical diameter D sph .…”

Section: A the Cryogenic Probementioning

confidence: 99%

“…This capability allows for integration with a variety of different systems in the middle of the cavity and for the exploration of different parameter regimes. Note that parameters such as the maximal length at which our cavity can be operated are strongly influenced by the mirror geometry, which can be modified by tuning laser ablation parameters 26 .…”

Section: B Characterization Of the Cavity Finessementioning

confidence: 99%

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A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K

Ruelle,

Jaeger,

Fogliano

et al. 2022

Preprint

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We describe an apparatus for the implementation of hybrid optomechanical systems at 4 K. The platform is based on a high-finesse, micrometer-scale fiber Fabry-Perot cavity, which can be widely tuned using piezoelectric positioners. A mechanical resonator can be positioned within the cavity in the object-in-the-middle configuration by a second set of positioners. A high level of stability is achieved without sacrificing either performance or tunability, through the combination of a stiff mechanical design, passive vibration isolation, and an active Pound-Drever-Hall feedback lock incorporating a reconfigurable digital filter. The stability of the cavity length is demonstrated to be better than a few picometers over many hours both at room temperature and at 4 K.

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Section: A the Cryogenic Probementioning

confidence: 99%

Section: B Characterization Of the Cavity Finessementioning

confidence: 99%

A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K

Ruelle,

Jaeger,

Fogliano

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…So far, the most popular methods for machining mirror templates are based on laser ablation, FIB, and silicon etching. Laser ablation using a CO 2 laser results in controlled creation of Gaussian-shaped dimples with low surface roughness (0.2 nmrms) [240][241][242]. Recently, the inclusion of additional nanofabrication steps achieved an effective R < 5 µm (based on the frequency spacing between higher-order transverse modes), with ablation depths of only ≈ 1 µm [243].…”

Section: Fabricationmentioning

confidence: 99%

Cavity quantum electrodynamics with color centers in diamond

Janitz

Bhaskar

Childress

2020

Optica

106

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Coherent interfaces between optical photons and long-lived matter qubits form a key resource for a broad range of quantum technologies. Cavity quantum electrodynamics (cQED) offers a route to achieve such an interface by enhancing interactions between cavity-confined photons and individual emitters. Over the last two decades, a promising new class of emitters based on defect centers in diamond have emerged, combining long spin coherence times with atom-like optical transitions. More recently, advances in optical resonator technologies have made it feasible to realize cQED in diamond. This article reviews progress towards coupling color centers in diamond to optical resonators, focusing on approaches compatible with quantum networks. We consider the challenges for cQED with solid-state emitters and introduce the relevant properties of diamond defect centers before examining two qualitatively different resonator designs: micron-scale Fabry-Perot cavities and diamond nanophotonic cavities. For each approach, we examine the underlying theory and fabrication, discuss strengths and outstanding challenges, and highlight state-of-the-art experiments.

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