公开(公告)号：US07336869B2

公开(公告)日：2008-02-26

申请号：US11279825

申请日：2006-04-14

申请人： Philippe A. Perrier ,  Sergey P. Burtsev ,  Do Il Chang ,  Andrzej S. Kaminski ,  Andrej B. Puc

发明人： Philippe A. Perrier ,  Sergey P. Burtsev ,  Do Il Chang ,  Andrzej S. Kaminski ,  Andrej B. Puc

IPC分类号： G02B6/28

CPC分类号： H04J14/0221 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2916 ,  H04B10/2937

摘要： A method of communicating an optical signal includes generating an optical signal at a bit rate of at least 2.5 Gb/s. The optical signal including at least thirty optical channels. In one particular embodiment, at least some of the thirty optical channels reside within a 1567-1620 nanometer wavelength range. The method also includes receiving the optical signal at a ROPA that includes a rare-earth doped optical fiber. In addition, the method includes introducing a pump signal to a communication span of the unrepeatered optical communication system. The pump signal operable to amplify the optical signal by Raman amplification within the communication span and including at least one pump signal wavelength operable to excite the rare-earth doped fiber. The method further includes receiving the optical signal after the optical signal has traversed at least 200 kilometers of the communication span.

摘要翻译： 传送光信号的方法包括以至少2.5Gb / s的比特率生成光信号。 光信号包括至少三十个光通道。 在一个具体实施例中，三十个光通道中的至少一些位于1567-1620纳米波长范围内。 该方法还包括在包括稀土掺杂光纤的ROPA处接收光信号。 此外，该方法包括将泵浦信号引入到无中继光通信系统的通信跨度。 泵浦信号可操作以在通信范围内通过拉曼放大来放大光信号，并且包括可操作以激励稀土掺杂光纤的至少一个泵浦信号波长。 该方法还包括在光信号经过至少200公里的通信跨度之后接收光信号。

公开(公告)号：US06385216B1

公开(公告)日：2002-05-07

申请号：US09439595

申请日：1999-11-12

申请人： Do Il Chang ,  Ho Young Kim ,  Kyong Hon Kim ,  Min Yong Jeon

发明人： Do Il Chang ,  Ho Young Kim ,  Kyong Hon Kim ,  Min Yong Jeon

IPC分类号： H01S3067

CPC分类号： H01S3/067 ,  H01S3/06712 ,  H01S3/09415 ,  H01S3/1112

摘要： An optical fiber mode-locked laser is disclosed. The laser comprises a gain medium doped optical fiber to achieve a population inversion between high and low energy levels by a pump light source and to oscillate optical waves in sequence, a cholesteric liquid crystal circular polarization mirror to transmit the waves from the pump light source and to be operated as a circular polarization reflection mirror for the oscillated optical waves from the gain medium doped optical fiber, a polarization controller to control the polarization state of the proceeding light which is oscillated from the gain medium doped optical fiber, a dispersion shifted fiber to give a non-linear effect to the proceeding light through the polarization controller, and an optical fiber laser output mirror which forms a resonator by putting out some portion of the proceeding light by transmission and reflecting the other portion of the light. With the present invention, one can effectively produce an ultrashort pulse with a simple structure and a few parts thereby improve an economic competence.

摘要翻译： 公开了一种光纤锁模激光器。 激光器包括增益介质掺杂光纤，以通过泵浦光源实现高能量和低能量之间的群体反转，并且依次振荡光波;胆甾型液晶圆偏振镜，用于传输来自泵浦光源的波;以及 作为用于来自增益介质掺杂光纤的振荡光波的圆偏振反射镜，用于控制从增益介质掺杂光纤振荡的行进光的偏振状态的偏振控制器，将色散位移光纤 对通过偏振光控制器的行进光进行非线性效应，以及光纤激光输出反射镜，其通过透射并反射光的另一部分而放出进行中的一部分光而形成谐振器。 利用本发明，可以有效地生产具有简单结构和少量零件的超短脉冲，从而提高经济能力。