Noise Comparison of RF Photonic Filters Based on Coherent and Incoherent Multiwavelength Sources

Author

Song, Minhyup ; Torres-Company, Victor ; Weiner, Andrew M.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

24

Issue

14

fYear

2012

fDate

7/15/2012 12:00:00 AM

Firstpage

1236

Lastpage

1238

Abstract

A filtered microwave photonic (MWP) link implemented with an optical frequency comb as a multitap optical source offers a significant improvement in noise characteristics when compared to a spectrally sliced broadband incoherent source with the same number of taps and identical tap delay. Our results show that frequency combs also enable a better use of the optical bandwidth for filtering with minimum noise-induced fluctuations. These results highlight the potential of optical frequency comb technology to operate over large distances in MWP filter links.

Keywords

light coherence; microwave photonics; optical filters; optical frequency conversion; optical noise; radiofrequency filters; RF photonic filters; filtered microwave photonic link; incoherent multiwavelength sources; multitap optical source; noise comparison; noise-induced fluctuations; optical frequency comb; Band pass filters; Bandwidth; Microwave filters; Optical fiber filters; Optical fibers; Microwave photonic filters; noise measurement; optical frequency combs; phase noise;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2201712

Filename

6210363