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1. 发明授权

US07065302B1 High efficiency optical feedback modulator and method of operation 失效
标题翻译：高效光反馈调制器及其操作方法
公开(公告)号：US07065302B1
公开(公告)日：2006-06-20
申请号：US09663038
申请日：2000-09-15
申请人： Edward Christian Jelks
发明人： Edward Christian Jelks
IPC分类号： H04B10/02
CPC分类号： H04B10/505 , H04B10/5053 , H04B10/5057
摘要： A high efficiency optical feedback modulator and method of operation are provided. The high efficiency optical feedback modulator (30) includes an optical modulator (52) and an optical feedback system (54). The optical modulator (52) includes first and second optical inputs (66a, 68a) and first and second optical outputs (66b, 68b). The optical feedback system (54) is coupled between the second optical output (68b) and the second optical input (68a). The second optical input (68a) receives an optical feedback signal (70) from the optical feedback system (54). The first optical input (66a) receives an input light beam (56). The input light beam (56) and the optical feedback signal (70) are modulated with an electronic input signal (26a) to produce a high modulation depth optical signal (36) output from the first optical output (66b). The high efficiency optical feedback modulator (30) achieves a slope efficiency that is an order of magnitude better than conventional optical modulators, corresponding to an RF link gain improvement of 100 times better than conventional optical modulators.
摘要翻译：提供了高效率的光反馈调制器和操作方法。高效光反馈调制器（30）包括光调制器（52）和光反馈系统（54）。光调制器（52）包括第一和第二光输入（66a，68a）以及第一和第二光输出（66b，68b）。光反馈系统（54）耦合在第二光输出（68b）和第二光输入（68a）之间。第二光输入端（68a）从光反馈系统（54）接收光反馈信号（70）。第一光学输入端（66a）接收输入光束（56）。输入光束（56）和光反馈信号（70）用电子输入信号（26a）进行调制，以产生从第一光输出（66b）输出的高调制深度光信号（36）。高效光反馈调制器（30）实现了比常规光调制器更好的一个数量级的斜率效率，对应于比常规光调制器好100倍的RF链路增益改善。

2. 发明授权

US06307655B1 Wideband frequency analyzer employing optical chirp transform 有权
标题翻译：宽带频率分析仪采用光啁啾变换
公开(公告)号：US06307655B1
公开(公告)日：2001-10-23
申请号：US09433779
申请日：1999-11-03
申请人： Edward Christian Jelks
发明人： Edward Christian Jelks
IPC分类号： H04J1402
CPC分类号： G02B6/2861 , G01R23/17
摘要： A wideband frequency analyzer and method of performing spectral analysis of a wideband signal is provided. The wideband frequency analyzer includes a first electro-optic modulator, a second electro-optic modulator, and an optical transversal filter. The first electro-optic modulator is operable to modulate an electrical input signal, such as a wideband radio-frequency signal, onto an optical carrier signal to output a modulated optical signal. The second electro-optic modulator is operable to mix the modulated optical signal with an electrical chirp signal to output a chirped modulated optical signal. The optical transversal filter is operable to filter the chirped modulated optical signal to output an electrical output signal. A method of performing spectral analysis of a wideband signal includes the step of modulating the wideband signal onto an optical carrier signal to generate a modulated optical signal. The modulated optical signal is then mixed with a chirp signal to generate a chirped modulated optical signal. The chirped modulated optical signal is then filtered to generate an electrical output signal representative of the amplitude of the Fourier transform of the electrical input signal.
摘要翻译：提供了宽带频率分析仪和对宽带信号进行频谱分析的方法。宽带频率分析仪包括第一电光调制器，第二电光调制器和光学横向滤波器。第一电光调制器可操作以将电输入信号（例如宽带射频信号）调制到光载波信号上，以输出经调制的光信号。第二电光调制器可操作以将调制光信号与电阻线信号混合以输出啁啾调制的光信号。光学横向滤波器可操作以对啁啾调制光信号进行滤波以输出电输出信号。执行宽带信号的频谱分析的方法包括将宽带信号调制到光载波信号上以产生调制光信号的步骤。然后将调制的光信号与啁啾信号混合以产生啁啾调制的光信号。然后对啁啾调制的光信号进行滤波以产生表示电输入信号的傅里叶变换幅度的电输出信号。

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