Abstract
Microwave heating is becoming common in areas such as heating of food, sintering of ceramics, etc. [1–3]. Hence, the measurement of microwave power in microwave applicators (cavities) is becoming increasingly important. The most attractive feature of optical power sensors is that their construction is from dielectric materials, where as other sensing elements are either metal or semiconductor [4–5]. Several optical microwave power sensors have been developed [6–7], as well as electrical sensors which require wire conductors to carry the signal. We describe a novel optical microwave power sensor having an active sensing area of only 200 μm by 2 mm. The device employs a Mach-Zehnder interferometer which is created using multimode interference couplers. Since the sensor contains no metallic components and since the susceptor can be made to have a very small area, the spatial resolution is high.
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References
W. H. Sutton, Key issues in microwave process technology, in: Ceramic Transactions Volume 36, Microwave: Theory and Application in Materials Processing II, D. E. Clark, W. R. Tinga, and J. R. Laia, Jr, ed., American Ceramic Society, Westerville, Ohio 1993
W. R. Tinga and W. H. Sutton, Key issues in microwave processing, research and commercialization-an open forum, in: Ceramic Transactions Volume 36, Microwave: Theory and Application in Materials Processing II, D. E. Clark, W. R. Tinga, and J. R. Laia, Jr., ed., American Ceramic Society, Westerville, Ohio 1993
P. S. Apté and W. D. MacDonald, Microwave sintering kilogram batches of silicon nitride, in: Ceramic Transactions Volume 59, Microwave: Theory and Application in Materials Processing III, D. E. Clark, D. C. Folz, S. J. Oda, and R. Silberglitt, ed., American Ceramic Society, Westerville, Ohio 1995
E. Udd, An overview of fibre-optic sensors, Rev. Sci. Instrum., vol. 66, no. 8,1995
E. Udd. Fibre Optic Sensors: An Introduction for Engineers and Scientists. John Wiley & Sons, Inc., New York, 1991
B. Schmaub, M. März, and J. Ernst, A fibre-optic sensor for microwave field measurement, Rev. Sci. Instrum., vol. 66, no. 8, 1995
G. Roussy, K. Agbossou, B. Dichtel, and J-M Thiebaut, High electromagnetic field measurements in industrial applicators by using an optically modulated sensor, Journal Microwave Power and Electromagnetic Energy, vol. 27, no. 3, 1992
M. R. Piam, C. F. Janz, R. I. MacDonald, B. P. Keyworth, and J. N. Broughton, Compact planar waveguide couplers for broadband dual-channel wavelength (de)multiplexing, to be presented at ICAPT ’96, Montreal, July 29-Aug 1, 1996.
L. O. Lierstuen, and A. Sudbo, 8-Channel wavelength division multiplexer based on multimode interference couplers, IEEE Photonics Technology Letters, vol. 7 no. 9, 1995
C. van Dam, M. R. Amersfoort, G. M. ten Kate, et al., Novel InP-based phased-array wavelength demultiplexer using a generalized mmi-mzi configuration, Proceedings of the European Conf. on Integrated Optics, Delft v. Press, Delft Netherlands, 1995.
P. A. Besse, M. Bachmann, H. Melchior, L. B. Soldano, and M. K. Smit, Optical bandwidth and fabrication tolerances of multimode interference couplers, Journal of Lightwave Technology, vol. 12, no. 6, 1994
A. Ferreras, F. Rodriguez, E. Gómez-Salas, J. L. de Miguel, and F. Hernández-Gil, IEEE Photonics Technology Letters, vol. 5, no. 10, 1993
L. B. Soldano and E. C. M. Pennings, Optical Multi-mode interference devices based on self-imaging: principles and applications, Journal of Lightwave Technology, vol. 13, no. 4, 1995
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© 1997 Springer Science+Business Media New York
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Hnatiw, A.J.P., MacDonald, R.I., Apté, P.S., MacDonald, W.D. (1997). A Silica Based Integrated Optic Microwave Power Sensor. In: Lampropoulos, G.A., Lessard, R.A. (eds) Applications of Photonic Technology 2. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9250-8_126
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DOI: https://doi.org/10.1007/978-1-4757-9250-8_126
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