Parallelumwandlung zwischen optisch und digital

Details

Veröffentlichungs-Nr.

EP2536041

Aktenzeichen

EP12171755

Anmeldetag

13. Juni 2012

Veröffentlichung

28. Januar 2015

Erteilung

28. Januar 2015

Rechtsraum

EP

IPC

H04B10/61

Abstract

A coherent optical receiver includes an electro-optic module coupled to an electronic signal processing Integrated circuit (IC) via a parallel analog transmission line bus. The electro-optic module 54 receives and detects an optical channel light including a high-bandwidth signal modulated thereon. The electro-optic module 54 includes: a single optical hybrid 22 for mixing the optical channel light with a corresponding continuous wave local oscillator light to generate a mixed light containing the high-bandwidth data signal, at least one photodetector 24; and an analog frequency decimator 62 for generating a set of parallel analog signals, each analog signal representing a respective portion of the high-bandwidth signal. The electronic signal processing IC 58 includes a respective Analog-to-digital (A/D) converter 64 for sampling each one of the set of parallel analog signals, and for generating corresponding parallel digital sample streams; and a digital signal processor (DSP) 28 for processing the parallel digital sample streams to extract the high-bandwidth signal.

Anmelder

Firma

Ciena Corporation

Land

🇺🇸 USA

Fachgebiete