Add to BibSonomy
Abstract
Simple multicolor electro-optic sampling-based femtosecond synchronization of multiple mode-locked lasers is demonstrated. Parallel timing error detection between each laser and a common microwave is achieved by wavelength division multiplexing and demultiplexing. The parallel timing error detection enables simultaneous femtosecond synchronization of more than two mode-locked lasers to the microwave oscillator, even when the lasers have different repetition rates. The residual root-mean-square (rms) timing jitter of laser–laser synchronization measured by an optical cross correlator is 2.6 fs (integration bandwidth, 100 Hz–1 MHz), which is limited by the actuator bandwidth in the laser oscillator. The long-term rms timing drift and frequency instability of laser–microwave synchronization are 7.1 fs (over 10,000 s) and ${5.5} \times {{10}^{- 18}}$ (over 2000 s averaging time), respectively. As a versatile and reconfigurable tool for laser–laser and laser–microwave synchronization, the demonstrated method can be used for various applications ranging from ultrafast x-ray and electron science facilities to dual- and triple-comb spectroscopy.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Kwangyun Jung and Jungwon Kim
Opt. Lett. 37(14) 2958-2960 (2012)
Darren D. Hudson, Seth M. Foreman, Steven T. Cundiff, and Jun Ye
Opt. Lett. 31(13) 1951-1953 (2006)
Zhaokun Wang, Wendi Wu, Tianyu Zhu, Kuo Hua, Shuo Chang, D. N. Wang, and Feng Gao
Opt. Lett. 46(1) 118-121 (2021)