A microphotonic transversal RF signal processor with no laser-coherence noise

Rong Zheng*, Kamal E. Alameh, Zhenglin Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In this paper, the impact of laser coherence on transversal photonic RF signal processors is investigated and a new MicroPhotonic adaptive RF filter structure, which eliminates the phased-induced intensity noise, is proposed and demonstrated. It is shown that the phase-induced intensity noise caused by the laser-source coherence significantly degrades the RF frequency response of a transversal photonic RF filter, hence, limiting its performance. The results show that the MicroPhotonic RF filter is capable of generating an arbitrary transfer function with no phase-induced intensity noise.

Original languageEnglish
Pages (from-to)540-545
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 20 Jun 2005
Externally publishedYes


  • Laser coherence
  • Phase-induced intensity noise
  • Photonic-signal processor


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