Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Magnus T. L. Hsu"'
Publikováno v:
Sensors and Actuators A: Physical. 223:167-173
The results of a systematic experimental characterization of the mechanical and electrical properties of quartz tuning forks (QTFs) are presented. Actuation efficiency and detection sensitivity are introduced as parameters for characterization of the
Autor:
V. Delaubert, Magnus T. L. Hsu, Hans-Albert Bachor, Ping Koy Lam, Nicolas Treps, Charles C. Harb, Claude Fabre
Publikováno v:
Journal of Modern Optics. 53:597-611
The application of quantum optics to spatial measurements with continuous-wave laser beams is discussed. In particular, we summarize the work on measuring small displacements and tilt. We present the required theoretical multi-mode model and discuss
Publikováno v:
Journal of Optics B: Quantum and Semiclassical Optics. 6:495-501
We derive the quantum noise limit for the optical beam displacement of a TEM00 mode. Using a multimodal analysis, we show that the conventional split detection scheme for measuring beam displacement is non-optimal with 80% efficiency. We propose a ne
Publikováno v:
IEEE Photonics Technology Letters. 24:1015-1017
We present a radio-frequency (RF) signal distribution system via optical fibers. We utilize an all-digital platform that encompasses a phase-locked loop, numerically-controlled oscillator, and fiber phase noise cancellation system. Our system achieve
Publikováno v:
CLEO: 2013.
We demonstrate a fiber interferometer that is a viable candidate for a laser frequency reference for future space-based missions requiring a stability of 30 Hz/√ over a 10 mHz to 1 Hz bandwidth.
Publikováno v:
2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings.
We present an overview of the design of the metrological scanning probe microscope (mSPM) currently under development at the National Measurement Institute Australia (NMIA) and report on preliminary results on the characterization of key components.
Autor:
P.T.H. Fisk, Brian J. Orr, Daniel A. Shaddock, Magnus T. L. Hsu, Guido Aben, R. B. Warrington, M.J. Wouters, Yabai He, Kenneth Baldwin, Sascha Schediwy, Malcolm B. Gray, Jong H. Chow, Andre N. Luiten
Publikováno v:
Conference on Lasers and Electro-Optics 2012.
We present two optical fiber-based radio-frequency signal distribution systems based on analog and all-digital electronics. The achieved fractional frequency transfer stabilities are similar: ∼6×10−17 (over 104 s) for analog using a 20km fiber s
Autor:
Malcolm B. Gray, Jan Herrmann, R. B. Warrington, Magnus T. L. Hsu, Ian C. M. Littler, Daniel A. Shaddock
Publikováno v:
2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology.
We report on an all-digital radio-frequency phasemeter for application in precision length measurements using heterodyne laser interferometry [1]. Our phasemeter has a phase sensitivity of 200 nrad/√Hz at signal frequencies of 0.2 Hz and above. We
Autor:
Malcolm B. Gray, Kenneth Baldwin, Magnus T. L. Hsu, M.J. Wouters, Yabai He, Daniel A. Shaddock, Guido Aben, R. Bruce Warrington, Brian J. Orr
Publikováno v:
2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology.
We present a novel optical fiber-based radio-frequency distribution system that incorporates low-cost commercially available components. It has a fractional frequency stability of 7×10−17 (averaged over 104 s) for distribution of an 80-MHz signal.
Autor:
M.J. Wouters, Yabai He, Daniel A. Shaddock, Brian J. Orr, Malcolm B. Gray, Guido Aben, Andre N. Luiten, Magnus T. L. Hsu, Kenneth Baldwin, R. Bruce Warrington
Publikováno v:
2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum (FCS) Proceedings.
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range compa