Low-drive-power asymmetric Mach-Zehnder modulator with band-limited operation

• Published in: Journal of lightwave technology Vol. 9; no. 6; pp. 750 - 753
• Main Authors: Zhou, Y., Izutsu, M., Sueta, T.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-06-1991; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Arm; Bandwidth; Circuit properties; Electric, optical and optoelectronic circuits; Electrodes; Electronics; Exact sciences and technology; Frequency; Integrated optoelectronics. Optoelectronic circuits; Optical and optoelectronic circuits; Optical interferometry; Optical modulation; Optical waveguides; Periodic structures; Strips; Testing; Asymmetric configuration; Lithium Metaniobates; Test; Mach Zehnder interferometer; Optical modulator; Optical waveguide; Frequency response; Passband; Experimental study; Block diagram; Modeling; Implementation
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/50.81978

A novel 2*2 asymmetric Mach-Zehnder interferometric modulator is fabricated on Ti:LiNbO/sub 3/ waveguide and tested at microwave frequency. Band-limited operation was realized by using a traveling-wave periodic polarity reversed structure with the asymmetric strip line as the modulator electrode instead of the conventional coplanar waveguide. For a modulator with a three-section polarity reversed electrode, a 3-dB bandwidth of 7 GHz was obtained experimentally from 9 to 16 GHz centered at 12 GHz.< >