Frequence of the Phase-Shift in Optical-Fiber THERMAL mODULATORS

Brown, James B. and Jones, J.D.C. and Rogers, S.J. and Chan, R.K.Y. and Wong, H.H. (1995) Frequence of the Phase-Shift in Optical-Fiber THERMAL mODULATORS. Optics and Laser Technology, 27 (5). pp. 335-341. ISSN 0030-3992. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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The optical phase shift as a function of frequency was determined in the range from DC to > 10 kHz for some single-mode optical-fibre phase modulators, formed by depositing a metal layer on the cladding surface by vacuum evaporation. A thermal analysis is presented in which the fibre surface and core temperatures are determined as a function of the frequency of the heating due to an electric current passing through the coating. The phase modulation arises from a combination of the temperature change at the core (predominant at low frequencies) and strains produced by the thermal expansion of the metal coating (predominant at the high frequencies). Applications include phase and birefringence control in optical-fibre interferometers.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics
Depositing User: P. Ogbuji
Date Deposited: 06 Jun 2009 20:13
Last Modified: 13 May 2014 09:08
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