Zobrazeno 1 - 10
of 143
pro vyhledávání: '"C.N. Pannell"'
Publikováno v:
Journal of Lightwave Technology. 13:1429-1434
Acoustooptics has been shown to provide a powerful and versatile means of controlling and modulating laser radiation in bulk optic components. We discuss the fiber-optic and fiber-compatible versions of several components such as the phase modulator
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9e9faae79907082a08e6faa581864e1
https://doi.org/10.1109/50.400708
https://doi.org/10.1109/50.400708
Publikováno v:
IEE Proceedings - Optoelectronics. 141:185-190
The authors present a rigorous and self-contained noise analysis of an optical amplifier based on the statistics of the input source field and the amplified spontaneous emission field of the amplifier. The method enables us to obtain the frequency de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eeca3b72b9a293633f0ad3f85146f49f
https://doi.org/10.1049/ip-opt:19941082
https://doi.org/10.1049/ip-opt:19941082
Publikováno v:
Optics Communications. 106:91-94
Multiple Stokes orders of stimulated Brillouin scattering in a 60 m long erbium-doped fibre amplifier are reported for excitation by 80 ns pulses. The observed threshold power is significantly reduced as a result of optical gain. The points of origin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7bb6342e649edec246d9e7eb3112bc0
https://doi.org/10.1016/0030-4018(94)90063-9
https://doi.org/10.1016/0030-4018(94)90063-9
Publikováno v:
Journal of Non-Crystalline Solids. :1251-1254
Chalcogenide glass systems based on Ga2S3-La2S3 (GLS glass), have been found to exhibit relatively high acousto-optic figures of merit. low acoustic loss and high acoustic velocity. These properties of the GLS glass combined with its transparency bot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b1ba4b8620a6157f6fe53a47df36488
https://doi.org/10.1016/0022-3093(93)91228-u
https://doi.org/10.1016/0022-3093(93)91228-u
Autor:
Ibrahim Abdulhalim, Elizabeth R. Taylor, Laurence Reekie, Kazimierz Jędrzejewski, David N. Payne, C.N. Pannell
Publikováno v:
Optics Communications. 99:355-359
Short pulse, high peak power Q-switching of fibre lasers is demonstrated using a specially constructed TeO2 acousto-optic modulator with high diffraction efficiency at 1.06 μm. The laser emits > 0.7 kW peak power pulses with 2.8 ns duration at up to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4adea12450a5264a38f4f1eb88d4b2f
https://doi.org/10.1016/0030-4018(93)90343-4
https://doi.org/10.1016/0030-4018(93)90343-4
Publikováno v:
Flow Measurement and Instrumentation. 1:216-224
A class of volume flowmeter exists in which measurements that are essentially line integrals of the velocity field along a series of parallel chords are combined linearly to form an estimate for the mean velocity. The paper shows how a priori knowled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8fd14225d5b6b177fc9789b05888f06
https://doi.org/10.1016/0955-5986(90)90016-z
https://doi.org/10.1016/0955-5986(90)90016-z
Publikováno v:
SPIE Proceedings.
All-fiber acousto-optic (AO) devices such as frequency shifters, phase, intensity and polarization modulators, tunable filters and multiplexers have been developed in the last decade mostly for their importance in fiber optic communication systems. H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44c3e69e168b26f08cb2dbe5c099d51
https://doi.org/10.1117/12.660161
https://doi.org/10.1117/12.660161
Autor:
C.N. Pannell, M. Johnson
Publikováno v:
8th Optical Fiber Sensors Conference.
Single-ended, active control of the output polarization state of a polarization-maintaining fiber is demonstrated. Normal eigenstate plus controlled quadrature outputs together allow stable phase demodulation and fringe counting in polarimetric fiber
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ac9365e3cc78e825a6f41a420c68985
https://doi.org/10.1109/ofs.1992.763007
https://doi.org/10.1109/ofs.1992.763007
Publikováno v:
8th Optical Fiber Sensors Conference.
The use of a Sagnac interferometer as an acoustic sensor has recently been demonstrated [1]. One reason for using a Sagnac interferometer is that the path imbalance is zero, such that no interferometric conversion of the source phase noise to intensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99355084dd302b65aa0cf665ffe1551a
https://doi.org/10.1109/ofs.1992.762937
https://doi.org/10.1109/ofs.1992.762937
Publikováno v:
IEEE Photonics Technology Letters. 6:725-727
A new type of fiber acousto-optic device, based on tapered single-mode fiber, is described. Unlike earlier designs, the overlap between the acoustic and optical waves is complete, so very little acoustic power is required. Maximum coupling in an expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43f3d7a5475ada2c6ab2d66d7b68fae4
https://doi.org/10.1109/68.300175
https://doi.org/10.1109/68.300175