High on/off ratio nanosecond laser pulses for a triggered single-photon source

Abstract

An 852nm nanosecond laser pulse chain with a high on/off ratio is generated by chopping a continuous-wave laser beam using a Mach-Zehnder-type electro-optic intensity modulator(MZ-EOIM). The detailed dependence of the MZ-EOIM's on/off ratio on various parameters is characterized. By optimizing the incident beam polarization and stabilizing the MZ-EOIM temperature, a static on/off ratio of 12600:1 is achieved. The dynamic on/off ratios versus the pulse repetition rate and the pulse duty cycle are measured and discussed. The high-on/off-ratio nanosecond pulsed laser system was used in a triggered single-photon source based on a trapped single cesium atom, which reveals clear antibunching.

12 pages,8 figures,Some typos fixed. Some of the preliminaries of arXiv:1601.03530v1 have been reused here

References in corpus (3)

• Mapping photonic entanglement into and out of a quantum memory
• Entanglement distribution over 300 km of fiber
• Fiber-pigtailed optical tweezer for single-atom trapping and single-photon generation

Cited by in corpus (4)

• Two-way single-photon-level frequency conversion between 852nm and 1560nm for connecting cesium D2 line with the telecom C-band
• Suppression of single cesium atom heating in a microscopic optical dipole trap for demonstration of an 852nm triggered single-photon source
• Influence of Laser Intensity Fluctuation on Single-Cesium Atom Trapping Lifetime in a 1064-nm Microscopic Optical Tweezer
• Amplification of nanosecond laser pulse chain via dynamic injection locking of laser diode