公开(公告)号：DE69810732D1

公开(公告)日：2003-02-20

申请号：DE69810732

申请日：1998-10-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ADAMS LAURA ELLEN ,  BETHEA CLYDE GEORGE ,  NYKOLAK GERALD ,  PEOPLE ROOSEVELT ,  TANBUN-EK TAWEE

IPC: H04J14/00 ,  H01S5/00 ,  H01S5/02 ,  H01S5/026 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/12 ,  H01S5/50 ,  H04B10/04 ,  H04B10/06 ,  H04B10/142 ,  H04B10/152 ,  H04J7/00 ,  H04J14/02 ,  H04J14/04

Abstract: In a WDM fiber-optic network, a unique laser transmitter enables signals to be routed at three hierarchical levels: at one level discrimination among signal paths is based on N WDM wavelength channels, at another level discrimination is based on m AM subcarrier frequency channels, and at a third level discrimination is based on n FM subcarrier frequency channels. Thus, a total of Nmn distinguishable optical channels can be accommodated and a like number of users served. The laser transmitter comprises a broadband, tunable semiconductor laser which includes an intracavity, integrated composite reflector to which a tuning voltage and a FM dither signal are applied, an intracavity gain section to which drive current is applied, and an extracavity, integrated electroabsorption modulator to which an information (e.g., data, voice, video) signal and an AM dither signal are applied. The tuning voltage provides coarse wavelength tuning among N WDM channels, whereas the FM dither signal produces an additional m channels via FM-SCM. The AM dither likewise produces an additional n channels via AM-SCM.

公开(公告)号：EP0814629A2

公开(公告)日：1997-12-29

申请号：EP97303988

申请日：1997-06-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BARROS MIRIAM R DE ,  ESKILDSEN LARS ERIK ,  NYKOLAK GERALD ,  VENGSARKAR ASHISH MADHUKAR ,  NIELSEN TORBEN N ,  TANBUN-EK TAWEE

IPC: G02B6/293 ,  G02F1/313 ,  H04B10/02 ,  H04J14/00 ,  H04J14/02 ,  H04Q11/00 ,  H04B10/12

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04J14/0213 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0022 ,  H04Q2011/0026 ,  H04Q2011/0039

Abstract: In accordance with the invention a multiwavelength optical fiber cross connect is provided with an active all-fiber optical router for multiplexing/demultiplexing. The router is comprised of one electronic component -- a phase controller -- and four fiber components: 1) a fiber directional coupler, 2) a fiber reflective grating filter, 3) a fiber tap, and 4) a fiber phase modulator. The application describes how to make optical routers from these components ranging in complexity from a single wavelength drop router to an N-port, N-wavelength router for add/drop multiplexing. The application also describes how optical wavelength routers can be combined to create optical fiber Cross connect (OXCs), ranging in complexity from 2X2 single wavelength OXCs to NXN, M-wavelength OXCs.

Abstract translation: 根据本发明，多波长光纤交叉连接器设置有用于复用/解复用的有源全光纤光路由器。 路由器由一个电子部件 - 相位控制器和四个光纤部件组成：1）光纤定向耦合器，2）光纤反射光栅滤波器，3）光纤抽头，以及4）光纤相位调制器。 该应用程序描述了如何使这些组件的光路由器的复杂性从单个波长丢弃路由器到N端口，N波长路由器进行分插复用。 该应用还描述了光波长路由器如何组合以创建光纤交叉连接（OXC），其范围从2X2单波长OXC到NXN，M波长OXC。