Characteristics of bright-squeezed light produced in a below-threshold optical parametric oscillator

Lariontsev, E G; Zolotoverkh, I I

doi:10.1088/1464-4266/4/1/302

Cited by 8 publications

(2 citation statements)

References 20 publications

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“…In an OPO the only input is the pump field, the input to the squeezed mode is a vacuum state and hence a squeezed vacuum mode is generated. If a coherent input seed field is introduced in an OPA, the squeeze operator is acting on a coherent state and a bright squeezed mode is generated [113]. The phase difference between the pump and seed input fields determines the argument of the complex squeeze parameter θ and the angle in quadrature space along which the output state will be squeezed.…”

Section: Cavity Qedmentioning

confidence: 99%

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Xavier

Jones

et al. 2021

Nanophotonics

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Quantum-enhanced sensing and metrology pave the way for promising routes to fulfil the present day fundamental and technological demands for integrated chips which surpass the classical functional and measurement limits. The most precise measurements of optical properties such as phase or intensity require quantum optical measurement schemes. These non-classical measurements exploit phenomena such as entanglement and squeezing of optical probe states. They are also subject to lower detection limits as compared to classical photodetection schemes. Biosensing with non-classical light sources of entangled photons or squeezed light holds the key for realizing quantum optical bioscience laboratories which could be integrated on chip. Single-molecule sensing with such non-classical sources of light would be a forerunner to attaining the smallest uncertainty and the highest information per photon number. This demands an integrated non-classical sensing approach which would combine the subtle non-deterministic measurement techniques of quantum optics with the device-level integration capabilities attained through nanophotonics as well as nanoplasmonics. In this back drop, we review the underlining principles in quantum sensing, the quantum optical probes and protocols as well as state-of-the-art building blocks in quantum optical sensing. We further explore the recent developments in quantum photonic/plasmonic sensing and imaging together with the potential of combining them with burgeoning field of coupled cavity integrated optoplasmonic biosensing platforms.

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Section: Cavity Qedmentioning

confidence: 99%

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Xavier

Jones

et al. 2021

Nanophotonics

View full text Add to dashboard Cite

show abstract

“…It should be noted that in the previous related works [20,34,36,37,39,40] the relevant amplitude expansion contained only a single quadratic term, namely, the first one according to (14). However, as (14) suggests, the extra quadratic term may significantly contribute to the field amplitude, especially at the nearthreshold oscillation, where the pump amplitude value may be far stronger than the generated amplitudes: A A p j 0 (j = 1, 2).…”

Section: Quadratic Approximationmentioning

confidence: 95%

Theory of the optical parametric oscillator in the quadratic and cubic approximations

Saygin

Chirkin

2015

Laser Phys.

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Optical parametric oscillators (OPOs) operate by implementing spatially distributed nonlinear interactions between several optical waves. In general cases the OPO generation process is not amenable to an exact analytical solution. As for special cases where exact analytical solutions exist, it provides no evident insight to the underlying physics. In the work we analyse the accuracy of wave amplitude approximations by quadratic and cubic functions in the example of the ring-cavity double-resonant OPO, which were applied for the transient and quasistationary regimes. We have established that the non-stationary regime is described by these approximations equally well in that it provides a good estimate for the transient time in a wide range of pump parameter values. In contrast, the cubic approximation has been shown to be much more accurate, in both the near and far-above threshold regimes, so that this approximation yields more reliable estimates of the OPO emission characteristics.

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Quantum trajectories for realistic photodetection: I. General formalism

Warszawski

Wiseman

2002

J. Opt. B: Quantum Semiclass. Opt.

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Quantum trajectories describe the stochastic evolution of an open quantum system conditioned on continuous monitoring of its output, such as by an ideal photodetector. In practice an experimenter has access to an output filtered through various electronic devices, rather than the microscopic states of the detector. This introduces several imperfections into the measurement process, of which only inefficiency has previously been incorporated into quantum trajectory theory. However, all electronic devices have finite bandwidths, and the consequent delay in conveying the output signal to the observer implies that the evolution of the conditional state of the quantum system must be non-Markovian. We present a general method of describing this evolution and apply it to avalanche photodiodes (APDs) and to photoreceivers. We include the effects of efficiency, dead time, bandwidth, electronic noise, and dark counts. The essential idea is to treat the quantum system and classical detector jointly, and to average over the latter to obtain the conditional quantum state. The significance of our theory is that quantum trajectories for realistic detection are necessary for sophisticated approaches to quantum feedback, and our approach could be applied in many areas of physics.

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Characteristics of bright-squeezed light produced in a below-threshold optical parametric oscillator

Cited by 8 publications

References 20 publications

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Theory of the optical parametric oscillator in the quadratic and cubic approximations

Quantum trajectories for realistic photodetection: I. General formalism

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