Invention Grant
- Patent Title: Time and wavelength-shifted dynamic bidirectional system
- Patent Title (中): 时间和波长动态双向系统
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Application No.: US12907750Application Date: 2010-10-19
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Publication No.: US08639115B2Publication Date: 2014-01-28
- Inventor: Mohammad A. Mazed
- Applicant: Mohammad A. Mazed
- Applicant Address: US DE Wilmington
- Assignee: Dorica Properties NY LLC
- Current Assignee: Dorica Properties NY LLC
- Current Assignee Address: US DE Wilmington
- Main IPC: H04J14/00
- IPC: H04J14/00

Abstract:
A bidirectional optical network, in which an incoming/downstream modulated optical signal(s) of a particular wavelength may carry content from a headend to a subscriber. An incoming/downstream unmodulated continuous wave optical signal(s) from the headend is time-shifted (i.e., time delayed with respect to just received incoming/downstream optical signal(s)), collected, modulated and sent back as return/upstream optical signal(s) from the subscriber to the headend. The return/upstream optical signal(s) may have the same wavelength or a slightly shifted wavelength relative to incoming/downstream optical signal(s). Wavelength, bandwidth, subscriber priority and service (content) provider may be fixed, dynamically, or statistically assigned. A modulated marker optical signal(s) is sent along with a modulated data optical signal simultaneously in a different plane. The modulated data optical signal(s) can therefore be securely delivered to a subscriber(s) according to the marker identification. Furthermore a device can be constructed from a group of components comprising an integrated tunable laser-modulator, a wavelength converter, a cyclic arrayed waveguide grating router, a photonic bandgap cyclic arrayed waveguide grating router, a burst enabled detector in order to electro-optically connect network elements, processors and chipsets on a printed circuit board.
Public/Granted literature
- US20110033185A1 TIME AND WAVELENGTH-SHIFTED DYNAMIC BIDIRECTIONAL SYSTEM Public/Granted day:2011-02-10
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