1 October 2005 Novel intercore-cladding lithium niobate thin film coated MOEMS fiber sensor/modulator
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J. of Micro/Nanolithography, MEMS, and MOEMS, 4(4), 041302 (2005). doi:10.1117/1.2114667
Abstract
A MOEMS fiber modulator/sensor is fabricated by depositing a lithium niobate sol-gel thin film between the core and cladding of a fiber preform. The preform is then drawn into 125-µm fibers. Such a MOEMS modulator design is expected to enhance existing lithium niobate undersea acousto-optic sound wave detectors. In our proposed version, the lithium niobate thin film alters the ordinary silica core/cladding boundary conditions such that, when a stress or strain is applied to the fiber, the core light confinement factor changes, leading to modulation of fiber light transmission. Test results of the lithium niobate embedded fiber with a 1550-nm, 4-mW laser source revealed a reduction in light transmission with applied tension. As a comparison, using the same laser source, an ordinary silica core/cladding fiber did not exhibit any reduction in transmitted light when the same strain was applied. Further experimental work and theoretical analysis is ongoing.
Tracee L. Jamison, Philipp G. Kornreich, Chung Yu, "Novel intercore-cladding lithium niobate thin film coated MOEMS fiber sensor/modulator," Journal of Micro/Nanolithography, MEMS, and MOEMS 4(4), 041302 (1 October 2005). http://dx.doi.org/10.1117/1.2114667
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KEYWORDS
Lithium niobate

Thin films

Crystals

Sol-gels

Cladding

Sensors

Microopto electromechanical systems

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