发明名称 |
Optical signal transmission system and magneto-optical modulator designed to establish modulation over wide range for use in the same |
摘要 |
An optical signal transmission system equipped with a magneto-optical modulator is provided. The magneto-optical modulator works to modulate an optical beam emitted from a light source and consists of a polarizer, a magneto-optical element, an analyzer, a dc field generator, a high-frequency field generator, and an impedance adjuster. The dc field generator works to apply a dc bias field to the magneto-optical element. The high-frequency generator is responsive to the high-frequency signal from said high-frequency signal generator to apply a high-frequency field to the magneto-optical element. The impedance adjuster works to adjust impedance of the high-frequency field generator for establishing effective transmission of the high-frequency signal to the high-frequency field generator, thereby increasing a modulation range up to frequencies higher than an upper limit of typical magneto-optical modulators. The application of the dc bias field and use of the impedance adjuster realizes the magneto-optical modulator which is useful up to a ferromagnetic resonance frequency.
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申请公布号 |
US2002051279(A1) |
申请公布日期 |
2002.05.02 |
申请号 |
US20010984005 |
申请日期 |
2001.10.26 |
申请人 |
MINEMOTO HISASHI;ITOH NOBUKI;ISHIKO DAISUKE;ISHIZUKA SATOSHI |
发明人 |
MINEMOTO HISASHI;ITOH NOBUKI;ISHIKO DAISUKE;ISHIZUKA SATOSHI |
分类号 |
G02F1/09;H04B10/04;H04B10/06;H04B10/142;H04B10/152;(IPC1-7):G02F1/09 |
主分类号 |
G02F1/09 |
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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