Acta Optica Sinica, Volume. 29, Issue 12, 3511(2009)
Organic-Inorganic Hybrid Modulator with Coplanar Waveguide Electrode
A strip-loading waveguide structure was designed with organic-inorganic hybrid material,and its optical field was simulated. A straight waveguide was fabricated and its transmission loss was tested to be 2.0 dB/cm. A Mach-Zehnder interference (MZI) modulator was designed with this structure. By optimization,the distance between the two waveguides in the interaction region was selected to be 30 μm and the length to be 15000 μm. The center electrode width and the gap of coplanar waveguide (CPW) electrode were analyzed to make sure their influence to characteristic impedance,overlap integral factor and half wave voltage. By optimization when the center electrode width was selected to be 9 μm and gap to be 5 μm,the minimum half wave voltage of the modulator is 8.4 V. The device was successfully fabricated and tested. A linear modulating curve was obtained. The half wave voltage in the test was 9.0 V. It agreed with the theoretial value.
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Gao Lei, Gao Weinan, Deng Ling, Yan Yunfei, Sun Xiaoqiang, Zhang Daming. Organic-Inorganic Hybrid Modulator with Coplanar Waveguide Electrode[J]. Acta Optica Sinica, 2009, 29(12): 3511
Category: Optical Devices
Received: Dec. 24, 2008
Accepted: --
Published Online: Dec. 23, 2009
The Author Email: Lei Gao (leonoler@gmail.com)