Waveguide beam splitters and recombiners based on multimode propagation phenomena

Jenkins, R. M.; Devereux, R. W. J.; Heaton, J.M.

doi:10.1364/ol.17.000991

Cited by 70 publications

(25 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, by exciting only the even symmetric modes, l-to-N beam splitters can be realized with multimode waveguides four times shorter [33]. In effect, by noting that…”

Section: B Symmetric Inte$erencementioning

confidence: 99%

See 1 more Smart Citation

Optical multi-mode interference devices based on self-imaging: principles and applications

Soldano

Pennings

1995

J. Lightwave Technol.

2,376

1,248

View full text Add to dashboard Cite

show abstract

“…However, by exciting only the even symmetric modes, l-to-N beam splitters can be realized with multimode waveguides four times shorter [33]. In effect, by noting that…”

Section: B Symmetric Inte$erencementioning

confidence: 99%

“…This situation is analogous to the focal shift from paraxial rays prediction due to aberration in optical systems of finite aperture. However, some balancing of the phase errors-and thus an improvement of the imaging quality-is possible by a slight correction of the imaging lengths predicted by (24), (33), and (37), 1351.…”

Section: B Imaging Qualitymentioning

confidence: 99%

Optical multi-mode interference devices based on self-imaging: principles and applications

Soldano

Pennings

1995

J. Lightwave Technol.

2,376

1,248

View full text Add to dashboard Cite

show abstract

“…With high numerical-aperture collection optics, 10% of the emitted photons can be collected, 51 and more could be extracted through an optical cavity 77,78 integrated with the ion trap. 79 Highly efficient photonic Bell-state detectors with near-ideal mode-matching can be realised in fibre or waveguide beamsplitters 80 and near-unit efficiency photon detectors. 81,82 Taken together, these advances may allow the linking of two ELUs to approach the speed of local Coulomb-based gates (~10 kHz).…”

Section: Integration Technologies For Trapped Ion Quantum Computersmentioning

confidence: 99%

Co-designing a scalable quantum computer with trapped atomic ions

2016

View full text Add to dashboard Cite

The first generation of quantum computers are on the horizon, fabricated from quantum hardware platforms that may soon be able to tackle certain tasks that cannot be performed or modelled with conventional computers. These quantum devices will not likely be universal or fully programmable, but special-purpose processors whose hardware will be tightly co-designed with particular target applications. Trapped atomic ions are a leading platform for first-generation quantum computers, but they are also fundamentally scalable to more powerful general purpose devices in future generations. This is because trapped ion qubits are atomic clock standards that can be made identical to a part in 10 15 , and their quantum circuit connectivity can be reconfigured through the use of external fields, without modifying the arrangement or architecture of the qubits themselves. In this forwardlooking overview, we show how a modular quantum computer with thousands or more qubits can be engineered from ion crystals, and how the linkage between ion trap qubits might be tailored to a variety of applications and quantum-computing protocols. Quantum information processors have the potential to perform computational tasks that are difficult or impossible using conventional modes of computing. 1-3 In a radical departure from classical information, the qubits of a quantum computer can simultaneously store bit values 0 and 1, and when measured they probabilistically assume definite states. Many interacting qubits, isolated from their environment, can represent huge amounts of information: there are exponentially many binary numbers that can co-exist, with entangled qubit correlations that can behave as invisible wires between the qubits. Even in the face of Moore's Law, or the doubling in conventional computer power every year or two, the complexity of massively entangled quantum states of just a few hundred qubits can easily eclipse the capacity of classical information processing. 4 There are but a few known applications that exploit this quantum advantage, such as Shor's factoring algorithm, 5 and future quantum information processors will likely be applied to special-purpose applications. On the other hand, a quantum computer has not yet been built; therefore, new quantum applications and algorithms will likely follow from the evolution and capability of quantum hardware.In the 20 years since the advent of Shor's algorithm 5 and the discovery of quantum error correction, 6-8 there has been remarkable progress in demonstrations of entangling quantum gates on o10 qubits in certain physical systems. Current efforts aim to scale to hundreds, thousands or even millions of interacting qubits. Unlike the classical scaling of bits and logic gates, however, large quantum systems are not comparable to the behaviour of just a few qubits. Just because 2 or 4 qubits can be completely controlled with negligible errors does not mean that this system can readily scale to 4100 qubits.In the last few years, two particular quantum hardware platforms have e...

show abstract

“…Above 4 µm, chalcogenide glass fibers have been developed; to our knowledge, no single-mode component has been commercialized yet, and the attenuation per meter remains very high. For the 10 µm domain single-mode hollow wave guides and guided optics components have also been developed (Jenkins et al 1992), which also show attenuation levels which are presently too high for applications in astronomical interferometry. It is hazardous to predict any impending breakthrough in this domain.…”

Section: Beam Transportation In Single-mode Fibersmentioning

confidence: 99%

Interferometric connection of large ground-based telescopes

Mariotti

Foresto

Perrin

et al. 1996

Astron. Astrophys. Suppl. Ser.

View full text Add to dashboard Cite

Abstract. -In this article, we argue that the recent advent of two technological breakthroughs in the field of Optics, namely the development of Adaptive Optics and of infrared single-mode fibers, is likely to modify our conception of astronomical interferometry at optical wavelengths. In particular, it should become possible to realize the coherent combination of the giant telescopes that tend to cluster at the best ground-based astronomical sites. Although more limited in their scope than the dedicated interferometric systems, these potential arrays could achieve impressive performances in terms of sensitivity and angular resolution. As an example, we discuss in more details the case of a Mauna Kea cluster of large telescopes.

show abstract

Waveguide beam splitters and recombiners based on multimode propagation phenomena

Cited by 70 publications

References 9 publications

Optical multi-mode interference devices based on self-imaging: principles and applications

Optical multi-mode interference devices based on self-imaging: principles and applications

Co-designing a scalable quantum computer with trapped atomic ions

Interferometric connection of large ground-based telescopes

Contact Info

Product

Resources

About