科研之友
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摘要
It is important to generate high quality photon pairs in the highly nonlinear optical fiber for practical applications of quantum information. Based on analysis of the principle of the generation of photon pairs by means of four-wave-mixing in optical fiber, main factors influencing noise generation of photon pairs have been presented. Several methods to suppress the noise have been discussed. With a cooled DSF, a short pulse and a narrow filtering bandwidth, signal and idler photons that generate with greater wavelength separation space from the bump, and high quality photon pairs with a better signal to noise ratio can be achieved in the highly nonlinear fiber.
- 出版日期2006
- 单位北京邮电大学
