Photon Number Squeezed States in Semiconductor Lasers

Yamamoto, Yoshihisa; Machida, Susumu; Richardson, W. H.

doi:10.1126/science.255.5049.1219

Cited by 56 publications

(12 citation statements)

References 33 publications

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“…The degree of squeezing thus obtained is directly proportional to the strength of nonlinearity. Several schemes have also been proposed to produce photon-number squeezed states in semiconductor lasers [13]. The generation scheme of photon-number squeezed states is quite different from conventional methods [14] and involves unilateral transformation of coherent light produced by the laser to squeezed light via various nonlinear optical processes [15].…”

Section: Introductionmentioning

confidence: 99%

Semiconductor cavity QED with squeezed light: Nonlinear regime

Sete

Eleuch

Das³

2011

Phys. Rev. A

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We present a study of semiconductor cavity QED effects with squeezed light. We investigate the effects of external squeezed light produced by a subthreshold optical parametric down conversion on the quantum features of the cavity as well as output radiation in the presence of exciton-exciton scattering. It turns out that the width of the spectrum of the cavity field strongly depends on the degree of squeezing. This effect is observed both in weak-and strong-coupling regimes. Moreover, we show that the external squeezed light has a profound effect on the amount of squeezing of the output field.

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Section: Introductionmentioning

confidence: 99%

Semiconductor cavity QED with squeezed light: Nonlinear regime

Sete

Eleuch

Das³

2011

Phys. Rev. A

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“…[3][4][5][6][7][8][9][10]). Furthermore, with the understanding of the intensity noise properties the control and the reduction of the laser noise, even below the standard quantum limit, became possible [11][12][13][14][15][16]. With the advent of the youngest semiconductor laser, the quantum cascade (QC) laser [17], the question of intensity noise performance of this unipolar intersubband laser source arouse once more again.…”

mentioning

confidence: 99%

Intensity noise properties of quantum cascade lasers

Gensty¹,

Elsäßer²,

Mann³

2005

Opt. Express

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We present investigations of the the relative intensity noise (RIN) of a quantum cascade laser (QC) laser in continuous wave operation. We analyze the intensity noise properties in terms of the relative intensity noise (RIN). In contrast to conventional interband semiconductor diode lasers we obtain a different scaling behavior of RIN with increasing optical output power for QC lasers. From a semiclassical noise model we find that this result is due to the cascaded active regions each incorporating three laser levels, and is therefore a particular feature of QC lasers.

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“…[41][42][43] for examples and Ref. [44] for a comprehensive review). In sub-Poissonian lasing, one pumps a laser with a source that has very low pump fluctuations (such as an electrical current in a pn-junction in constant current operation).…”

Section: Discussion and Outlookmentioning

confidence: 99%

Complete condensation of photon noise in nonlinear dissipative systems

Rivera¹,

Sloan²,

Salamin³

et al. 2021

Preprint

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Macroscopic non-Gaussian states of light are among the most highly-coveted "holy grails" in quantum science and technology. An important example is that of macroscopic number (Fock) states of light. Due to their exactly defined number of photons, they are of great interest in quantum metrology, spectroscopy, simulation, and information processing. However, the deterministic creation and stabilization of even approximate large-number Fock states remains thus far a long-standing open problem. Here, we introduce a mechanism that deterministically generates macroscopic sub-Poissonian states, including Fock states, at optical and infrared frequencies. The method takes advantage of the fact that a photon with a sharply increasing nonlinear loss will have its intensity noise condense as it decays. We reveal regimes where this phenomenon can lead to transient generation of Fock and sub-Poissonian states. We further show that these low noise states can be preserved in steady-state by building a laser with a sharp loss element, stabilizing the state with an equilibrium between gain and loss. We show two examples of these phenomena: one which produces a near-Fock state with 5,000 photons (with an uncertainty of < 1 photon), and one which generates a macroscopic sub-Poissonian state with 10 12 photons, yet noise 99% below that of a coherent state of the same size. When realized, our results may enable many of the previously envisaged applications of number states and sub-Poissonian states for quantum algorithms, simulation, metrology, and spectroscopy.More generally, our results provide a new and general type of nonlinearity which could form the basis for many new optoelectronic devices which emit macroscopic non-Gaussian light.

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Photon Number Squeezed States in Semiconductor Lasers

Cited by 56 publications

References 33 publications

Semiconductor cavity QED with squeezed light: Nonlinear regime

Semiconductor cavity QED with squeezed light: Nonlinear regime

Intensity noise properties of quantum cascade lasers

Complete condensation of photon noise in nonlinear dissipative systems

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