Comparative study of the frequency-doubling performance on ring and linear cavity at short wavelength region

Yang, Wenhai; Wang, Yajun; Zheng, Yaohui; Lu, Huadong

doi:10.1364/oe.23.019624

Cited by 23 publications

(19 citation statements)

References 27 publications

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“…Experimental setup for the generation and transferring of squeezed state of light is shown in Figure 2. An optical parametric amplifier (OPA) [39], which contained a pair of concave mirrors and a type-0 quasi-phase-matched periodically poled KTiOPO 4 (PPKTP) crystals with dimensions of 1 × 2 × 12 mm 3 , was used to generate the squeezed state of light at wavelength of 1342 nm pumped by a Nd:YVO 4 all-solid-state laser [40]. The diameters of both concave mirrors was 10 mm and the curvature radii were 50 mm.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Transferring of Continuous Variable Squeezed States in 20 km Fiber

et al. 2019

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Transferring of a real quantum state in a long-distance channel is an important task in the development of quantum information networks. For greatly suppressing the relative phase fluctuations between the signal beam and the corresponding local oscillator beam, the usual method is to transfer them with time-division and polarization-division multiplexing through the same fiber. But the nonclassical states of light are very sensitive to the channel loss and extra noise, this multiplexing method must bring the extra loss to the quantum state, which may result in the vanishing of its quantum property. Here, we propose and realize a suitable time multiplexing method for the transferring and measurement of nonclassical states. Only the local oscillator beam is chopped into a sequence of light pulses and transmitted through fiber with continuous orthogonal-polarized signal beam. Finally, when the local oscillator pulses are properly time delayed compared to the signal beam, the quantum state can be measured in the time sequences without the influence of extra noise in the fiber. Our work provides a feasible scheme to transfer a quantum state in relative long distance and construct a practical quantum information network in metropolitan region.

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

Transferring of Continuous Variable Squeezed States in 20 km Fiber

et al. 2019

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“…The quasi-phasematched nonlinear crystal PPKTP has the advantage of high nonlinear coefficient and no walk-off effect. However, the SHG process is limited by the absorption of PPKTP at short wavelength and associated thermal effect, and cavity-enhanced SHG employs a bow tie-type ring configuration instead of the standing wave cavity in order to reduce the influence of the thermal effect of the PPKTP crystal [31].…”

Section: A Production Of Laser At 398 Nm Based On Shg With Enhancemementioning

confidence: 99%

Deterministic generation of bright polarization squeezed state of light resonant with the rubidium D1 absorption line

Liu

Deng

et al. 2016

J. Opt. Soc. Am. B

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A polarization squeezed optical beam can directly interact with the atomic medium, and its measurement is localoscillator free. Here we have deterministically generated polarization squeezed light at 795 nm. First, a laser at 398 nm is produced from second-harmonic generation with an enhancement cavity. Then a pair of quadrature amplitude squeezed optical fields is prepared with two degenerate optical parameter amplifiers that are pumped by the resulting laser at 398 nm. Finally, the polarization squeezed state of light is generated by combining the above two quadrature amplitude squeezed optical beams on a polarizing beam splitter, and the quantum fluctuations of three Stokes operators simultaneously are reduced 4.0 dB below the quantum noise limit. The polarization squeezing has potential applications in future quantum information networks.

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“…However, the thermal-lens effect of the PPKTP crystal due to the absorption of the blue laser will badly influence the high efficiency and stable generation of the blue laser. So far, the research on the thermal-lens effect of the PPKTP crystal has been focused on the external cavity-enhanced SHG [7,16,17], where the thermal-lens effect of the PPKTP crystal cannot influence the oscillation of the fundamental-wave laser. To the best of our knowledge, there is no study on the thermal-lens effect of the PPKTP crystal in an intracavity-doubled Ti:sapphire laser, where the thermallens effect of the PPKTP crystal can not only influence the output power of the generated blue laser, but also directly influence the fundamental-wave oscillation.…”

Section: Experimental Design and Setupmentioning

confidence: 99%

High-power tunable single-frequency 461 nm generation from an intracavity doubled Ti:sapphire laser with PPKTP

Li¹,

Li²,

Lu³

et al. 2015

Laser Phys.

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By optimising the resonator and choosing a periodically poled KTiOPO 4 (PPKTP) crystal as the doubler, a tunable single-frequency 461 nm laser with good performance is achieved. The output power at 460.86 nm and beam quality are of 1.05 W and better than 1.1, respectively. The measured linewidth is less than 590 kHz for 50 ms. By scanning the optical length of the resonator, the continuous frequency-tuning range of 15.756 GHz for the 460.86 nm laser is obtained.

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Comparative study of the frequency-doubling performance on ring and linear cavity at short wavelength region

Cited by 23 publications

References 27 publications

Transferring of Continuous Variable Squeezed States in 20 km Fiber

Transferring of Continuous Variable Squeezed States in 20 km Fiber

Deterministic generation of bright polarization squeezed state of light resonant with the rubidium D1 absorption line

High-power tunable single-frequency 461 nm generation from an intracavity doubled Ti:sapphire laser with PPKTP

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