Invention Grant
- Patent Title: Optical I-Q-modulator
- Patent Title (中): 光I-Q调制器
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Application No.: US13002551Application Date: 2009-07-06
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Publication No.: US08295710B2Publication Date: 2012-10-23
- Inventor: Winter Marcus
- Applicant: Winter Marcus
- Applicant Address: FI Espoo
- Assignee: Nokia Siemens Networks Oy
- Current Assignee: Nokia Siemens Networks Oy
- Current Assignee Address: FI Espoo
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: EP08104643 20080704
- International Application: PCT/EP2009/058472 WO 20090706
- International Announcement: WO2010/000863 WO 20100107
- Main IPC: H04B10/12
- IPC: H04B10/12 ; G02F1/03
Abstract:
The invention describes a modulator for the quadrature modulation of an optical carrier signal with an I- and a Q-portion, where a first optical multimode interferometer (MMI) splits the optical carrier signal into four branches and that in pairs of branches the I-portion and the Q-portion respectively is modulated with a Mach-Zehnder-Structure and a second optical multimode interferometer (MMI) combines the modulated I-portion and Q-portion again to one quadrature modulated optical output signal (OS).
Public/Granted literature
- US20110164305A1 OPTICAL I-Q-MODULATOR Public/Granted day:2011-07-07
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