Lasing of cesium active optical clock with 459 nm laser pumping

Pan, Duo; Xu, Zhichao; Xue, Xiaobo; Zhuang, Wei; Chen, Jingbiao

doi:10.1109/fcs.2014.6859908

Cited by 18 publications

(24 citation statements)

References 18 publications

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“…When the 459 nm pumping laser was applied, the population inversion [31] and lasing between 7 2 S 1/2 and 6 2 P 3/2 can be realized. The 1469.9 nm output light power when changing 459 nm pumping laser power clearly shows a threshold of 0.8 mW represented by the 459 nm pumping laser power.…”

Section: Four-level Active Optical Frequency Standardsmentioning

confidence: 99%

“…Several atomic species have been proposed [13,14,25,26] and stimulated emission of cesium four-level active optical frequency standards have been realized [28][29][30][31]. The relevant cesium atomic energy levels are shown in Fig.…”

Section: Four-level Active Optical Frequency Standardsmentioning

confidence: 99%

“…3. The 1469.9 nm beat signal between two independent setups of Cs four-level active optical frequency standards respectively pumped by 455 nm and 459 nm laser [31].…”

Section: Four-level Active Optical Frequency Standardsmentioning

confidence: 99%

“…Recently, the lasing action, cavity pulling suppression, and the output linewidth of Cs four-level active optical frequency standards have been investigated experimentally [28][29][30][31]. For alkali atoms like Cs, Rb and K, the available diode lasers and mature techniques of laser cooling and trapping will be very helpful in the research of active optical frequency standards based on alkali atoms.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ten years of active optical frequency standards

Pan

Zhuang

Xue

et al. 2015

2015 Joint Conference of the IEEE International Frequency Control Symposium &Amp; The European Frequency and Time Forum

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The concept of active optical clock was proposed ten years ago. In this paper, after a simple review, we will mainly present the most recent experimental progresses of active optical frequency standards in Peking University, including 4-level Cesium active optical frequency standards and active Faraday optical frequency standards.Keywords-Active optical clocks; bad-cavity laser; 4-level active optical frequency standards; active Faraday optical frequency standards.

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Section: Four-level Active Optical Frequency Standardsmentioning

confidence: 99%

Section: Four-level Active Optical Frequency Standardsmentioning

confidence: 99%

“…3. The 1469.9 nm beat signal between two independent setups of Cs four-level active optical frequency standards respectively pumped by 455 nm and 459 nm laser [31].…”

Section: Four-level Active Optical Frequency Standardsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ten years of active optical frequency standards

Pan

Zhuang

Xue

et al. 2015

2015 Joint Conference of the IEEE International Frequency Control Symposium &Amp; The European Frequency and Time Forum

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“…The active atomic systems are optical equivalents of the maser, relying on cooperative quantum phenomena such as superradiance or superfluorescence of atoms inside the cavity mode. Several pioneering experiments have already demonstrated lasing under such conditions [19][20][21][22][23]. In the passive approach the atom-cavity system is used as a reference for laser stabilization where the narrow linewidth atomic transitions are interrogated inside an optical cavity.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of bad-cavity-enhanced interaction with cold Sr atoms for laser stabilization

et al. 2017

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Hybrid systems of cold atoms and optical cavities are promising systems for increasing the stability of laser oscillators used in quantum metrology and atomic clocks. In this paper we map out the atom-cavity dynamics in such a system and demonstrate limitations as well as robustness of the approach. We investigate the phase response of an ensemble of cold 88 Sr atoms inside an optical cavity for use as an error signal in laser frequency stabilization. With this system we realize a regime where the high atomic phase shift limits the dynamical locking range. The limitation is caused by the cavity transfer function relating input field to output field. The cavity dynamics is shown to have only little influence on the prospects for laser stabilization, making the system robust towards cavity fluctuations and ideal for the improvement of future narrow linewidth lasers.

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Atomic optical stimulated amplifier with optical filtering of ultra-narrow bandwidth

Pan

Shi

Luo

et al. 2018

Sci Rep

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Taking advantages of ultra-narrow bandwidth and high noise rejection performance of the Faraday anomalous dispersion optical filter (FADOF), simultaneously with the coherent amplification of atomic stimulated emission, we propose a stimulated amplified Faraday anomalous dispersion optical filter (SAFADOF) at cesium 1470 nm. The SAFADOF is able to significantly amplify very weak laser signals and reject noise in order to obtain clean signals in strong background. We show that for a weak signal of 50 pW, the gain factor can be larger than 25000 (44 dB) within a bandwidth as narrow as 13 MHz. Having the ability to amplify weak signals with low background contribution, the SAFADOF finds outstanding potential applications in weak signal detections.

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Lasing of cesium active optical clock with 459 nm laser pumping

Cited by 18 publications

References 18 publications

Ten years of active optical frequency standards

Ten years of active optical frequency standards

Dynamics of bad-cavity-enhanced interaction with cold Sr atoms for laser stabilization

Atomic optical stimulated amplifier with optical filtering of ultra-narrow bandwidth

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