Ultra-precise timing technique with low-power lasers holds immense significance in numerous advanced applications. Presently, the nonlinear-optics-based timing method falls short in delivering sufficient resolution under low-power conditions, while the intricate setup of the linear heterodyne timing technique makes it hard to implement. In this article, based on the AOM timing detection principle, an attosecond-precision balanced timing detector is firstly evaluated. By utilizing time and frequency multiplexing configuration, an electronic-noise-suppression timing detector is then demonstrated. Given the simplicity, low power consumption, and exceptional timing precision of our approach, these two linear-optics-based timing methods hold broad applicability in the realms of metrology, ranging, and synchronization.
Since gravitational waves are extremely weak, the frequency noise of the lasers in space-based gravitational wave detectors need to be substantially reduced. One of the key technologies for this laser frequency reduction is arm locking. Currently, all the reported controllers in arm locking have an inherent tradeoff between the frequency noise suppression ratio and feedback stability. In this paper, for the first time the inverse design idea is introduced into single arm locking controller. By utilizing a multi-parameter co-optimization scheme, the frequency noise suppression ratio and the feedback stability can be optimized simultaneously. This work can be generalized to different kinds of arm locking controller design and will effectively improve the sensitivity of the space-based gravitational wave detector.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.