Waveguide quasi-phase-matched sum-frequency generation device pumped by InGaAs laser diode for single-photon detection in communication wavelength band

被引：6

作者：

Fujimura, Masatoshi ^{[1
]}

Okabe, Hiroaki ^{[1
]}

Beniya, Kazufumi ^{[1
]}

Suhara, Toshiaki ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Elect Elect & Informat Engn, Suita, Osaka 5650871, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 9A期

关键词：

lithium niobate; waveguide; quasi-phase matching; single-photon detection; sum-frequency generation;

D O I：

10.1143/JJAP.46.5868

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An efficient single-photon detector for the communication wavelength band is required for quantum communication. A detection method utilizing a highly efficient photon wavelength converter and a Si avalanche photodiode is promising. In this work, we studied waveguide quasi-phase-matched sum-frequency generation devices for a photon wavelength converter. We adopted an InGaAs laser diode as a pump source for the implementation of a practical detection module. The device performance was theoretically examined. A prototype device was designed, fabricated, and tested. A maximum quantum efficiency of 23% was obtained in wavelength conversion experiments. A high potential of the device for a single-photon detector was demonstrated.

引用

页码：5868 / 5870

页数：3

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