公开(公告)号：EP0877477A3

公开(公告)日：2001-02-14

申请号：EP98303325.9

申请日：1998-04-28

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Walker, Kenneth Lee ,  Willems, Frederick Willem

IPC: H03F1/32 ,  H04B10/207

CPC classification number: H04B10/505 ,  H03F1/32 ,  H04B10/564

Abstract: In one embodiment, an optical transmitter (40), which has a modulator (44) disposed between an pair of optical amplifiers (45, 46), exhibits reduced carrier-to-noise ratio and relatively high powers. In another embodiment, an optical amplifier (45) is disposed between the laser carrier source (42) and the modulator (44), but the post-modulator amplifier (46) is omitted. Application of the transmitters to analog systems (e.g., CATV) and digital systems is described.

Abstract translation: 在一个实施例中，具有设置在一对光放大器（45,46）之间的调制器（44）的光发射器（40）表现出降低的载波噪声比和相对高的功率。 在另一个实施例中，光放大器（45）设置在激光载波源（42）和调制器（44）之间，但是后调制放大器（46）被省略。 描述了发射机对模拟系统（例如CATV）和数字系统的应用。

公开(公告)号：EP0877477A2

公开(公告)日：1998-11-11

申请号：EP98303325.9

申请日：1998-04-28

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Walker, Kenneth Lee ,  Willems, Frederick Willem

IPC: H03F1/32

CPC classification number: H04B10/505 ,  H03F1/32 ,  H04B10/564

Abstract: In one embodiment, an optical transmitter (40), which has a modulator (44) disposed between an pair of optical amplifiers (45, 46), exhibits reduced carrier-to-noise ratio and relatively high powers. In another embodiment, an optical amplifier (45) is disposed between the laser carrier source (42) and the modulator (44), but the post-modulator amplifier (46) is omitted. Application of the transmitters to analog systems (e.g., CATV) and digital systems is described.

Abstract translation: 在一个实施例中，具有设置在一对光放大器（45,46）之间的调制器（44）的光发射器（40）表现出降低的载波噪声比和相对高的功率。 在另一个实施例中，光放大器（45）设置在激光载体源（42）和调制器（44）之间，但后调制放大器（46）被省略。 描述了将发射机应用于模拟系统（例如CATV）和数字系统。