Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Adriaan van Brakel"'
Dense wavelength division multiplexing (DWDM) technology requires tight specification and therefore measurement of wavelength accuracy and stability of the telecommunication lasers. Thus, calibration of the used Optical Spectrum Analyzers (OSAs) that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::044798e4f7a2a7e3033edd1cd976c4a9
Publikováno v:
SPIE Proceedings.
Laser frequency stabilisation in the telecommunications band was realised using the Pound-Drever-Hall (PDH) error signal. The transmission spectrum of the Fabry-Perot cavity was used as opposed to the traditionally used reflected spectrum. A comparis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4723e784bce19c1a16edf0264a81be2f
https://doi.org/10.1117/12.2242627
https://doi.org/10.1117/12.2242627
Publikováno v:
Sensors and Actuators B: Chemical. 139:30-34
We present results from the first optical fibre correlation spectroscopy gas sensor which uses no lenses other than in the measurement gas cell. The sensor measures acetylene (C2H2) gas concentration. A 1m length of photonic bandgap fibre (PBGF) was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac4d1dee247bfe6cb62c14ef6ba1c322
https://doi.org/10.1016/j.snb.2008.07.028
https://doi.org/10.1016/j.snb.2008.07.028
Publikováno v:
Optics express. 15(14)
Micro-channels were fabricated in hollow-core photonic bandgap fiber (HC-PBGF) and suspended-core holey fiber (SC-HF) by femtosecond Ti:sapphire laser irradiation. Gaseous access was demonstrated via these engineered ports to the core of HC-PBGF and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed251b2c6957a2bec30d25f573e44aff
https://pubmed.ncbi.nlm.nih.gov/19547208
https://pubmed.ncbi.nlm.nih.gov/19547208
Autor:
Pieter L. Swart, Adriaan van Brakel
Publikováno v:
SPIE Proceedings.
Most fiber optic interferometric refractometers suffer from large temperature sensitivities, especially those that employ long-period gratings. This paper presents results on a compound-cavity Michelson interferometer whose phase shift is only depend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c26e6f95abb910f0d47140990132912
https://doi.org/10.1117/12.577054
https://doi.org/10.1117/12.577054
Publikováno v:
SPIE Proceedings.
We propose the use of optical fiber Bragg gratings in a non-invasive blood pressure waveform monitor. Bragg gratings can be written in a Fabry-Perot interferometric configuration to yield a method of strain measurement that has both a high resolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15ebc27a824e9dc3b14ba3c95d3130ff
https://doi.org/10.1117/12.577035
https://doi.org/10.1117/12.577035
Autor:
Adriaan van Brakel, Pieter L. Swart
Publikováno v:
Optical Engineering. 44:020504
Fiber optic interferometric refractometers usually possess large temperature sensitivities, especially those based on individual long-period gratings. This work introduces a compound-cavity Michelson interferometer that uses mode coupling in a long-p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f06c477c78f860b858e5184bd35b9920
https://doi.org/10.1117/1.1850746
https://doi.org/10.1117/1.1850746