发明名称 |
OPTICAL MODULATOR HAVING MACH-ZENDER ARRANGEMENT AND METHOD TO GENERATE MODULATED OPTICAL SIGNAL USING THE SAME |
摘要 |
A semiconductor optical modulator with the Mach-Zender type is disclosed. The optical modulator of the invention cab driven by a single phase signal and reduce the chirping of the modulated light. Two waveguides of the Mach-Zender modulator each including an active layer showing the exciton resonance in the refractive index are connected with a resistor. The driving signal is applied to one of the waveguides, while, the signal is applied to the other waveguide through the resistor where the other waveguide is grounded through a resistor. Adjusting the resistance of two resistors and the amplitude of the applied signal, the Mach-Zender modulator shows a substantial modulation degree with substantially no chirping characteristic.
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申请公布号 |
US2011069924(A1) |
申请公布日期 |
2011.03.24 |
申请号 |
US20100887131 |
申请日期 |
2010.09.21 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
MURATA MICHIO |
分类号 |
G02F1/017;B82Y20/00;G02F1/025 |
主分类号 |
G02F1/017 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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