Photonic vector signal generation employing a novel optical direct-detection in-phase/quadrature-phase upconversion

Wen Jr Jiang, Chun-Ting Lin*, Chung Hung Ho, Chia Chien Wei, Po Tsung Shih, Jyehong Chen, Sien Chi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

This work demonstrates the feasibility of the generation of an RF direct-detection vector signal using optical in-phase/quadrature-phase (I/Q) upconversion. The advantage of the proposed transmitter is that no electrical mixer is needed to generate the RF signal. Therefore, I/Q data of RF signals are processed at baseband at the transmitter, which is independent of the carrier frequency of the generated RF signal. A 10 Gb=s 16 quadrature amplitude modulation signal is experimentally demonstrated. Following transmission over a 50 kmsingle-mode fiber, the power penalty is negligible. Moreover, I/Q imbalance of the proposed transmitter is studied and compensated by digital signal processing, which is both numerically and experimentally verified.

Original languageEnglish
Pages (from-to)4069-4071
Number of pages3
JournalOptics Letters
Volume35
Issue number23
DOIs
StatePublished - 1 Dec 2010

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