Thermal effects of the quantum states generated from the isomorphs of PPKTP crystal

Abstract

We theoretically and numerically investigate the temperature-dependent properties of the biphotons generated from four isomorphs of periodically poled $\mathrm{KTiOP}{\mathrm{O}}_4$ (PPKTP): i.e., PPRTP, PPKTA, PPRTA and PPCTA. It is discovered that the first type of group-velocity-matched (GVM) wavelength is decreased by 6.4, 1.2, 8.9, 25.6 and 6.3 nm, while the phase-matched wavelength is decreased by 4.4, -0.4, -1.2, 29.1 and 59.5 nm for PPKTP, PPRTP, PPKTA, PPRTA and PPCTA, respectively, when the temperature is increased from 20${}^{\circ }\mathrm{C}$ to 120${}^{\circ }\mathrm{C}$. Although the maximal spectral purity of the heralded single photons is not changed at different temperature, the Hong-Ou-Mandel (HOM) interference shows different patterns due to a shift of the joint spectral amplitude. These thermal effects are very important for precise control of the quantum state for the future applications in quantum information processing, for example, in quantum interference or spectroscopy.

arXiv comment6 pages, 3 figures

References in corpus (24)

• Heralded Generation of Ultrafast Single Photons in Pure Quantum States
• A bright, pulsed two-mode squeezer
• Engineered optical nonlinearity for a quantum light source
• Bright source of spectrally uncorrelated polarization-entangled photons with nearly single-mode emission
• Widely tunable single photon source with high purity at telecom wavelength
• Quantum-enhanced absorption spectroscopy
• Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths
• Anti-symmetrization reveals hidden entanglement
• Spectral Correlation Measurements at the Hong-Ou-Mandel Interference Dip
• Pulsed source of spectrally uncorrelated and indistinguishable photons at telecom wavelengths
• CW-pumped telecom band polarization entangled photon pair generation in a Sagnac interferometer
• Spectrally resolved Hong-Ou-Mandel interference between independent sources
• Efficient generation and spectral characterization of spectrally factorable biphotons
• Extended Wiener-Khinchin theorem for quantum spectral analysis
• Generation and distribution of high-dimensional frequency-entangled qudits
• High-visibility nonclassical interference between pure heralded single photons and weak coherent photons
• Measurement and shaping of biphoton spectral wavefunctions
• Detection-dependent six-photon NOON state interference
• Numerical Investigation of Photon-Pair Generation in Periodically Poled MTiOXO4 (M = K, Rb, Cs; X = P, As)
• An integrated quantum photonic sensor based on Hong-Ou-Mandel interference
• Spectrally pure states at telecommunications wavelengths from periodically poled $M$TiO$X$O${}_4$ ($M$ = K, Rb, Cs; $X$ = P, As) crystals
• Actively switchable non-degenerate polarization entangled photon pair distribution in a dense wave-division multiplexing
• Ultra-broadband continuously-tunable polarization entangled photon pair source covering the C+L telecom bands based on a single type-II PPKTP crystal
• Monotonic quantum-to-classical transition enabled by positively-correlated biphotons

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• Terahertz waves generation using the isomorphs of PPKTP crystal: a theoretical investigation
• Mid-infrared pure-state quantum light source based on lithium niobate waveguides