17 May 2010 Low voltage, moderate rejection ratio electro-optic modulator at 2.2μm obtained by proton exchange in lithium niobate
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Abstract
In this paper we present the performances of a modulator, realized by proton exchange, achieving a moderate rejection ratio in the K-band (2.2μm). The device consists on a simple Mach-Zehnder beam combiner, developed by our partners from Photline Technologies®, pushing forward their proton exchange technique in order to achieve single mode optical guiding above 1.9μm in Lithium Niobate X-cut substrates. Applying low modulation voltages (Vπ=3.4V), and by a Fast Fourier Transform obtain the spectrum of the source with a moderate resolution, due to the reduced length of the active part (32mm). A white light interferometer is also shown, using a band-pass filter, from 1.8 to 2.6μm.
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Olga Caballero-Calero, Olga Caballero-Calero, Romain Burla, Romain Burla, Thibaut Moulin, Thibaut Moulin, Alain Delboulbé, Alain Delboulbé, Laurent Jocou, Laurent Jocou, Jean-Philippe Berger, Jean-Philippe Berger, Guillermo Martin, Guillermo Martin, } "Low voltage, moderate rejection ratio electro-optic modulator at 2.2μm obtained by proton exchange in lithium niobate", Proc. SPIE 7719, Silicon Photonics and Photonic Integrated Circuits II, 77191D (17 May 2010); doi: 10.1117/12.854310; https://doi.org/10.1117/12.854310
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