发明名称 |
CENTRALIZED LIGHTWAVE WDM-PON EMPLOYING INTENSITY MODULATED DOWSTREAM AND UPSTREAM |
摘要 |
An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving a centralized lightwave carrier signal with downstream data over the optical fiber. The optical network unit includes a coupler configured to split the original carrier signal into a first path and a second path. The first path includes an optical filter configured to reduce fading effects of the carrier signal. The second path includes a modulator configured to remodulate the centralized lightwave carrier signal with upstream data to produce an upstream data signal for upstream transmission.
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申请公布号 |
US2009274462(A1) |
申请公布日期 |
2009.11.05 |
申请号 |
US20080235013 |
申请日期 |
2008.09.22 |
申请人 |
NEC LABORATORIES AMERICA, INC. |
发明人 |
YU JIANJUN |
分类号 |
H04J14/00 |
主分类号 |
H04J14/00 |
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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