Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Alan B. Tveten"'
Publikováno v:
IEEE Journal of Quantum Electronics. 48:720-727
We present measurement data of fundamental thermal noise in a 40-m fiber optic Mach-Zehnder interferometer (MZI) using 80-μm-diameter optical fiber. To extend the measurements to low frequencies (below 500 Hz), the experimental setup is carefully de
Autor:
Alan B. Tveten, Anthony Dandridge
Publikováno v:
Applied optics. 20(14)
Publikováno v:
SPIE Proceedings.
A systematic comparison of the phase noise performance for commercial off-the-shelf solid-state and semiconductor laser technologies is presented. Specifically these technologies include, Nd:YAG lasers, Er-doped fiber lasers, external cavity semicond
Publikováno v:
Optics letters. 13(9)
A planar flexible fiber-optic interferometric acoustic sensor has been developed by wrapping optimized single-mode fibers in a planar spiral form and then embedding the fiber in a thin polyurethane layer. Both the acoustic and the acceleration respon
Publikováno v:
Optical Fiber Sensors.
A review of the progress in fiber optic acoustic and seismic sensor systems is presented. Common advancements in areas such as multiplexing are covered as well as specific progress in transducers and application areas.
Publikováno v:
IEEE Photonics Technology Letters. 7:90-92
We demonstrate measurements of fundamental thermal induced phase fluctuations in the fiber-loop of a Sagnac interferometer. Loop lengths of 1.1 and 2.2 km are considered, showing phase noise levels between /spl sim/0.2-1.4 /spl mu/rad rms//spl radic/
Publikováno v:
2002 15th Optical Fiber Sensors Conference Technical Digest. OFS 2002(Cat. No.02EX533).
We report here, the acoustically induced normalized phase sensitivity for polyurethane and uv-curable acrylate air-included polymers (AIP) measured dynamically over the frequency range of 0. 1 to 1 kHz. The measured sensitivity is compared with a sim
This paper presents several designs of high-sensitivity, compact fiber-optic ultrasound sensors that may be used for medical imaging applications. These sensors translate ultrasonic pulses into strains in single-mode optical fibers, which are measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::832ffc93554ea41f8b0fa7f2553acbc0
https://europepmc.org/articles/PMC2892210/
https://europepmc.org/articles/PMC2892210/
Autor:
Sverre Knudsen, Gunnar Wang, Geir Bjarte Havsgard, Anthony Dandridge, Alan B. Tveten, Øyvind Christensen
Publikováno v:
12th International Conference on Optical Fiber Sensors.
One problem associated with thin-walled fiber-optic air-backed mandrel hydrophones is that mechanical or structural resonances can arise within the signal bandwidth. As resonances will in general change the frequency response of hydrophones in terms
Publikováno v:
12th International Conference on Optical Fiber Sensors.
We describe the results of a multichannel array of fiber optic accelerometers utilized to measure the vibrational response of an underwater structure to acoustic ensonification. The experiment represents the first demonstration of a multiplexed array