Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Sterr Uwe"'
Autor:
Dickmann Johannes, Shelling Neto Liam, Gaedtke Mika, Sauer Steffen, Nicolodi Daniele, Sterr Uwe, Kroker Stefanie
Publikováno v:
EPJ Web of Conferences, Vol 287, p 04019 (2023)
Interferometric experiments are often limited in sensitivity by the thermal noise of the mirrors. In particular, interferometric gravitational wave detectors and laser stabilization resonators can benefit from reduced mirror noise. We present results
Externí odkaz:
https://doaj.org/article/b55bae5cc5754b6db9a1d128956902e6
Autor:
Kedar, Dhruv, Yu, Jialiang, Oelker, Eric, Staron, Alexander, Milner, William R., Robinson, John M., Legero, Thomas, Riehle, Fritz, Sterr, Uwe, Ye, Jun
State-of-the-art optical oscillators employing cryogenic reference cavities are limited in performance by the Brownian thermal noise associated with the mechanical dissipation of the mirror coatings. Recently, crystalline Al$_{1-x}$Ga$_{x}$As/GaAs co
Externí odkaz:
http://arxiv.org/abs/2210.14881
Autor:
Yu, Jialiang, Kedar, Dhruv, Häfner, Sebastian, Legero, Thomas, Riehle, Fritz, Herbers, Sofia, Nicolodi, Daniele, Ma, Chun Yu, Robinson, John M., Oelker, Eric, Ye, Jun, Sterr, Uwe
Thermodynamically induced length fluctuations of high-reflectivity mirror coatings put a fundamental limit on sensitivity and stability of precision optical interferometers like gravitational wave detectors and ultra-stable lasers. The main contribut
Externí odkaz:
http://arxiv.org/abs/2210.15671
Autor:
Herbers, Sofia, Häfner, Sebastian, Dörscher, Sören, Lücke, Tim, Sterr, Uwe, Lisdat, Christian
Publikováno v:
Opt. Lett. 47, pp. 5441-5444 (2022)
We present a transportable ultra-stable clock laser system based on a Fabry-P\'erot cavity with crystalline Al$_{0.92}$Ga$_{0.08}$As/GaAs mirror coatings, fused silica (FS) mirror substrates and a 20~cm-long ultra-low expansion (ULE\textsuperscript{\
Externí odkaz:
http://arxiv.org/abs/2207.08679
Active optical frequency standards provide interesting alternatives to their passive counterparts. Particularly, such a clock alone continuously generates highly-stable narrow-line laser radiation. Thus a local oscillator is not required to keep the
Externí odkaz:
http://arxiv.org/abs/2205.14130
Autor:
Robinson, John M, Oelker, Eric, Milner, William R, Kedar, Dhruv, Zhang, Wei, Legero, Thomas, Matei, Dan G, Hafner, Sebastian, Riehle, Fritz, Sterr, Uwe, Ye, Jun
Mechanical loss of dielectric mirror coatings sets fundamental limits for both gravitational wave detectors and cavity-stabilized optical local oscillators for atomic clocks. Two approaches are used to determine the mechanical loss: ringdown measurem
Externí odkaz:
http://arxiv.org/abs/2011.05986
We present a compact iodine-stabilized laser system at 633 nm, based on a distributed-feedback laser diode. Within a footprint of $27\times 15$ cm$^2$ the system provides 5 mW of frequency stabilized light from a single-mode fiber. Its performance wa
Externí odkaz:
http://arxiv.org/abs/2011.02748
Autor:
Dörscher, Sören, Huntemann, Nils, Schwarz, Roman, Lange, Richard, Benkler, Erik, Lipphardt, Burghard, Sterr, Uwe, Peik, Ekkehard, Lisdat, Christian
We report direct measurements of the frequency ratio of the 642 THz ${}^2S_{1/2} (F=0)$--${}^2F_{7/2} (F=3)$ electric octupole transition in ${}^{171}\mathrm{Yb}^+$ and the 429 THz ${}^1S_0$--${}^3P_0$ transition in ${}^{87}\mathrm{Sr}$. A series of
Externí odkaz:
http://arxiv.org/abs/2009.05470
Publikováno v:
Opt. Express 28, 16407-16416 (2020)
We present an interrogation laser system for a transportable strontium lattice clock operating at 698 nm, which is based on an ultra-low-expansion glass reference cavity. Transportability is achieved by implementing a rigid, compact, and vibration in
Externí odkaz:
http://arxiv.org/abs/2003.02766
Autor:
Dörscher, Sören, Al-Masoudi, Ali, Bober, Marcin, Schwarz, Roman, Hobson, Richard, Sterr, Uwe, Lisdat, Christian
The frequency stability achieved by an optical atomic clock ultimately depends on the coherence of its local oscillator. Even the best ultrastable lasers only allow interrogation times of a few seconds, at present. Here we present a universal measure
Externí odkaz:
http://arxiv.org/abs/1911.13146