13 April 1999 Highly tunable and selective Fabry Perot filter based on InP-air Bragg mirrors for WDM applications
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Abstract
We report here micro-transmission measurements of a highly selective and a widely tunable optical filter at 1.55 micrometers . This filter is formed by a (lambda) /2 air cavity sandwiched between two 3.5 alternances InP-air Bragg mirrors. Reflectors and air cavity are fabricated by selective micro- machining of InGaAs sacrificial layers. Measurements have shown a very large wavelength tuning of 108nm for only 4.7V and a filter linewidth of 0.6 nm. Such performances have been possible because of the high reflectivity, large bandwidth and good optical confinement of the InP-air Bragg mirrors.
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Ronan Le Dantec, Ronan Le Dantec, Taha Benyattou, Taha Benyattou, Gerard Guillot, Gerard Guillot, Alain Spisser, Alain Spisser, Jean Louis Leclercq, Jean Louis Leclercq, Pierre Viktorovitch, Pierre Viktorovitch, D. Rondi, D. Rondi, } "Highly tunable and selective Fabry Perot filter based on InP-air Bragg mirrors for WDM applications", Proc. SPIE 3632, Optoelectronic Interconnects VI, (13 April 1999); doi: 10.1117/12.344622; https://doi.org/10.1117/12.344622
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