6 papers
Redefining the limits of real-time noise cancellation in optical fiber links
Charles A. McLemore, Marco Pomponio, Takuma Nakamura +4
A broad and growing array of applications rely on the faithful transmission of ultrastable optical signals over noisy paths, requiring cancellation of environmentally induced noise…
Fiber Link Stabilization with a Multicore Fiber Amplifier
Yifan Liu, Takuma Nakamura, Daniel J. Elson +7
We study the use of separate cores of a multicore erbium-doped fiber amplifier (MC-EDFA) in a noise-canceled link for ultrastable optical frequency transfer. We demonstrate fractio…
Visible dual-comb spectroscopy across more than 100 THz with lithium niobate nanophotonic waveguides
Carter Mashburn, Kristina F. Chang, Michael J. Wahl +11
Broadband and high-resolution spectroscopy in the visible and ultraviolet is central to advances in multiple fields, including fundamental quantum physics, biology, atmospheric sci…
Sub-femtosecond stabilization of multicore fiber for high-fidelity quantum networking at 100% duty cycle
Takuma Nakamura, Nazanin Hoghooghi, Nicolas Fontaine +8
Originally envisioned as a solution for the capacity crunch in telecommunications networks, multicore fibers (MCF) are contributing to scientific fields beyond telecom, such as sen…
Dual-comb correlation spectroscopy of thermal light
Eugene J. Tsao, Alexander J. Lind, Connor Fredrick +8
The detection of light of thermal origin is the principal means by which humanity has learned about our world and the cosmos. In optical astronomy, in particular, direct detection…
From ultra-noisy to ultra-stable: optimization of the optoelectronic laser lock
Takuma Nakamura, Yifan Liu, Naijun Jin +5
We demonstrate thermal-noise-limited direct locking of a semiconductor distributed feedback (DFB) laser to a sub-1 mL volume, ultrastable optical cavity, enabling extremely compact…