| 发明名称 |
DIRECT MODULATION PHASE SHIFT KEYING (DM-PSK) TRANSMISSION SYSTEM |
| 摘要 |
A direct modulation phase shift keying transmission system (DM-PSK transmission system) is disclosed for coherent optical fiber transmission in which an injection current supplied to a semiconductor laser (1) is adapted to be directly modulated. This system presents useful features in automatic frequency control, demodulation, and phase noise suppression. <IMAGE> |
| 申请公布号 |
CA2047022(A1) |
申请公布日期 |
1992.01.19 |
| 申请号 |
CA19912047022 |
申请日期 |
1991.07.15 |
| 申请人 |
FUJITSU LIMITED |
发明人 |
NAITO, TAKAO;CHIKAMA, TERUMI;WATANABE, SHIGEKI;KUWAHARA, HIDEO |
| 分类号 |
H04B10/516;H04B10/07;H04B10/2507;H04B10/556;H04B10/572;H04B10/58;H04B10/61;H04L27/20;H04L27/22;H04L27/227 |
主分类号 |
H04B10/516 |
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