发明名称 |
OPTICAL MODULATOR UTILIZING MULTI-LEVEL SIGNALING |
摘要 |
An optical modulator is formed to include a plurality of separate electrodes disposed along one arm, the electrodes having different lengths and driven with different signals to provide for multi-level signaling (e.g., PAM-4 signaling). By using separate drivers to energize the different sections, the number of sections energized at a given point in time will define the net phase shift introduced to the optical signal. The total length of the combined modulator sections is associated with a p phase shift (180°). Each section is driven by either a digital "one" or "zero", so as to create the multi-level modulation. An essentially equal change in power between adjacent transmitted symbols is accomplished by properly adjusting the lengths of each individual section. |
申请公布号 |
WO2008051429(A2) |
申请公布日期 |
2008.05.02 |
申请号 |
WO2007US22200 |
申请日期 |
2007.10.18 |
申请人 |
SIOPTICAL, INC.;SHASTRI, KALPENDU;DAMA, BIPIN |
发明人 |
SHASTRI, KALPENDU;DAMA, BIPIN |
分类号 |
G02F1/035 |
主分类号 |
G02F1/035 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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