Optimizing the phase-matching parameters of a BIBO crystal for ultrafast spontaneous parametric down conversion

Guang-Wen Huo; Tong-Yi Zhang; Ren-Gang Wan; Mei-Zhi Zhang; Guang-Hua Cheng; Wei Zhao

doi:10.1117/12.918955

22 February 2012 Optimizing the phase-matching parameters of a BIBO crystal for ultrafast spontaneous parametric down conversion

Guang-Wen Huo, Tong-Yi Zhang, Ren-Gang Wan, Mei-Zhi Zhang, Guang-Hua Cheng, Wei Zhao

Author Affiliations +

Proceedings Volume 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration; 833313 (2012) https://doi.org/10.1117/12.918955
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

We analyze and optimize the parameters of the Type I spontaneous parametric down-conversion (SPDC) process in BiB₃O₆ (BIBO) crystal directly from calculations. This can be used to construct a system to generate ultrafast entangled photon pairs, which play an important role in quantum communication, quantum positioning, and quantum clock synchronization. Our work on the problem makes it clear that the optimal phase matching orientation in the process of SPDC is a key mechanism in the BIBO crystal in a way that appears not to have been appreciated before. In the case of ω = 0.405 μm , the numerical results of the optimization parameters at room temperature ( 295 K ) are:θ = 152.00° ,φ = 90° , and d_eff = 3.48 pm/V . Finally, we use a pair of 0.6 mm thick biaxial BIBO crystals to construct an ultrafast entangled photon source, where the crystals are stacked together perpendicularly and pumped by a 405 nm pulsed laser doubling from a Tsunami mode-locked Ti:sapphire laser.

Citation Download Citation

Guang-Wen Huo, Tong-Yi Zhang, Ren-Gang Wan, Mei-Zhi Zhang, Guang-Hua Cheng, and Wei Zhao "Optimizing the phase-matching parameters of a BIBO crystal for ultrafast spontaneous parametric down conversion", Proc. SPIE 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration, 833313 (22 February 2012); https://doi.org/10.1117/12.918955

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