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Locating and coupling fibres to integrated stripe waveguides

Locating and coupling fibres to integrated stripe waveguides

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IEE Proceedings J (Optoelectronics) — Recommend this title to your library

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A method for coupling fibres to Ti-diffused waveguides in LiNbO3 is described, by which ion-milled grooves in the LiNbO3 substrate are used to locate the fibres. The coupling loss is analysed, and fabrication parameters optimised to minimise insertion loss due to modal mismatch. A net insertion loss of −2.6 dB has been measured for the coupler.

References

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