公开(公告)号：US07925172B2

公开(公告)日：2011-04-12

申请号：US12184137

申请日：2008-07-31

申请人： Nils Anders Olsson ,  Daniel Mahgerefteh

发明人： Nils Anders Olsson ,  Daniel Mahgerefteh

IPC分类号： H04B10/04

CPC分类号： G02B5/281 ,  G02B6/4215 ,  H04B10/503 ,  H04B10/504 ,  H04B10/58

摘要： An optical transmitter is disclosed wherein a directly modulated laser outputs a frequency modulated signal through a semiconductor optical amplifier. Both the optical transmitter and semiconductor amplifier are modulated according to an output of a digital data source. An optical filter is positioned to receive an output of the semiconductor optical amplifier and has a frequency dependent transmission function effective to convert the amplified signal into a filtered signal having enhanced amplitude modulation. In some embodiments, the semiconductor optical amplifier is coupled to the digital data source by means of a compensation circuit configured to high-pass filter the output of the digital signal source. In other embodiments, the semiconductor optical amplifier is coupled to the digital data source by means of a compensation circuit configured to produce an output including a first-order time derivative of the output of the digital signal source.

摘要翻译： 公开了一种光发射机，其中直接调制的激光器通过半导体光放大器输出调频信号。 光发射器和半导体放大器均根据数字数据源的输出进行调制。 光学滤波器被定位成接收半导体光放大器的输出，并且具有有效地将放大的信号转换成具有增强的幅度调制的滤波信号的频率相关传输函数。 在一些实施例中，半导体光放大器借助于被配置为高通滤波数字信号源的输出的补偿电路耦合到数字数据源。 在其他实施例中，半导体光放大器通过补偿电路耦合到数字数据源，该补偿电路经配置以产​​生包括数字信号源的输出的一阶时间导数的输出。

公开(公告)号：US20090080905A1

公开(公告)日：2009-03-26

申请号：US12184137

申请日：2008-07-31

申请人： Nils Anders Olsson ,  Daniel Mahgerefteh

发明人： Nils Anders Olsson ,  Daniel Mahgerefteh

IPC分类号： H04B10/04

CPC分类号： G02B5/281 ,  G02B6/4215 ,  H04B10/503 ,  H04B10/504 ,  H04B10/58

摘要： An optical transmitter is disclosed wherein a directly modulated laser outputs a frequency modulated signal through a semiconductor optical amplifier. Both the optical transmitter and semiconductor amplifier are modulated according to an output of a digital data source. An optical filter is positioned to receive an output of the semiconductor optical amplifier and has a frequency dependent transmission function effective to convert the amplified signal into a filtered signal having enhanced amplitude modulation. In some embodiments, the semiconductor optical amplifier is coupled to the digital data source by means of a compensation circuit configured to high-pass filter the output of the digital signal source. In other embodiments, the semiconductor optical amplifier is coupled to the digital data source by means of a compensation circuit configured to produce an output including a first-order time derivative of the output of the digital signal source.

摘要翻译： 公开了一种光发射机，其中直接调制的激光器通过半导体光放大器输出调频信号。 光发射器和半导体放大器均根据数字数据源的输出进行调制。 光学滤波器被定位成接收半导体光放大器的输出，并且具有有效地将放大的信号转换成具有增强的幅度调制的滤波信号的频率相关传输函数。 在一些实施例中，半导体光放大器借助于被配置为高通滤波数字信号源的输出的补偿电路耦合到数字数据源。 在其他实施例中，半导体光放大器通过补偿电路耦合到数字数据源，该补偿电路经配置以产​​生包括数字信号源的输出的一阶时间导数的输出。