What question did this study set out to answer?

Investigate the physical mechanisms causing secondary grating resonances near the fundamental Bragg wavelength in depressed-cladding optical fibres.

April 29, 1994Electronics Letters

Mode-coupling characteristics of UV-writtenBragg gratings in depressed-cladding fibre

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Investigate the physical mechanisms causing secondary grating resonances near the fundamental Bragg wavelength in depressed-cladding optical fibres.
Acquired spatial intensity images of reflected and transmitted optical fields around the Bragg wavelength.
Calculated modal phase-matching conditions above and below the LP11 cutoff threshold.
Observed additional distinct grating resonances occurring both above and below the LP11 cutoff.
Confirmed that the additional spectral peaks arise from coupling between the fundamental LP01 mode and bound or slightly leaky LP11 modes.

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Implication

Experimental investigation reveals extra resonances in depressed-cladding fibres, indicating mode coupling between fundamental and bound or leaky higher-order modes.

Cite This Study

Morey et al. (1994) studied this question.

synapsesocial.com/papers/6a8efc8d90e8ec90ff28e6dc https://doi.org/10.1049/el:19940427

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Implication

Experimental investigation reveals extra resonances in depressed-cladding fibres, indicating mode coupling between fundamental and bound or leaky higher-order modes.

Mode-coupling characteristics of UV-writtenBragg gratings in depressed-cladding fibre

Key Points

Discussion

Implication

Cite This Study

Mode-coupling characteristics of UV-writtenBragg gratings in depressed-cladding fibre

Key Points

Discussion

Implication

Cite This Study

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