发明名称 |
Apparatus and method utilizing a rotating waveplate for reducing polarization dependent hole-burning in an amplified optical transmission system |
摘要 |
A technique for reducing signal degradation and fading within a long optical transmission by utilizing a rotating waveplate arrangement to rotate the SOP of an optical signal launched into the transmission system, and thereby minimize polarization dependent hole-burning ("PDHB"). This effectively reduces the degree of polarization of the launched optical signal, without degrading the noise and dispersion characteristics of the signal. The rate of waveplate rotation is chosen to ensure that the SOP of the launched signal does not remain at a particular SOP long enough to anisotropically saturate any optical amplifier employed within the transmission system, and give rise to PDHB.
|
申请公布号 |
US5309535(A) |
申请公布日期 |
1994.05.03 |
申请号 |
US19930056214 |
申请日期 |
1993.04.30 |
申请人 |
AT&T BELL LABORATORIES |
发明人 |
BERGANO, NEAL S.;MAZURCZYK, VINCENT J.;WYSOCKI, PAUL F. |
分类号 |
G02B27/28;G02B5/30;G02B6/34;G02F1/35;H01S3/06;H01S3/07;H01S3/10;H04B10/135;H04B10/17;(IPC1-7):G02B6/10 |
主分类号 |
G02B27/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|