Abstract

We demonstrate a simple method to obtain accurate optical waveforms with a gigahertz-level programmable modulation bandwidth and a watt-level output power for wideband optical control of free atoms and molecules. Arbitrary amplitude and phase modulations are transferred from microwave to light with a low-power fiber electro-optical modulator. The sub-milliwatt optical sideband is co-amplified with the optical carrier in a power-balanced fashion through a tapered semiconductor amplifier (TSA). By automatically keeping TSA near saturation in a quasi-continuous manner, typical noise channels associated with pulsed high-gain amplifications are efficiently suppressed. As an example application, we demonstrate interleaved cooling and trapping of two rubidium isotopes with coherent nanosecond pulses.

© 2022 Chinese Laser Press

Wideband tunable laser phase noise reduction using single sideband modulation in an electro-optical feed-forward scheme

Firooz Aflatouni and Hossein Hashemi
Opt. Lett. 37(2) 196-198 (2012)

Broadly tunable wideband optical single sideband generation using self-coupled silicon resonator

A. Pandey and S. K. Selvaraja
Opt. Express 27(6) 8476-8487 (2019)

Study of phase coherence degradation induced by a tapered semiconductor amplifier with frequency-modulated continuous-wave and pulsed seed lasers

Xiang Hui Qi, Lin Yi, Qian Li Ma, Da Wei Zhou, Xiao Ji Zhou, and Xu Zong Chen
Appl. Opt. 48(22) 4370-4374 (2009)

Measurement and control of the sideband to carrier ratio of an electro-optic modulator used in atom interferometers

Lei Zhu, JiaQi Zhong, Xi Chen, HongWei Song, XiaoWei Zhang, Biao Tang, Fen Gao, Jin Wang, and MingSheng Zhan
Opt. Express 25(10) 11365-11376 (2017)

Nanosecond pulse shaping at 780 nm with fiber-based electro-optical modulators and a double-pass tapered amplifier

C. E. Rogers and P. L. Gould
Opt. Express 24(3) 2596-2606 (2016)