A low-loss downconverting analog fiber-optic link

Author

Gopalakrishnan, G.K. ; Moeller, R.P. ; Howerton, M.M. ; Burns, W.K. ; Williams, K.J. ; Esman, R.D.

Author_Institution

Maryland Adv. Dev. Lab., Greenbelt, MD, USA

Volume

43

Issue

9

fYear

1995

fDate

9/1/1995 12:00:00 AM

Firstpage

2318

Lastpage

2323

Abstract

An analog fiber-optic link for concurrent detection and downconversion of microwave signals is reported. Optical amplification is employed in conjunction with electrical power combining of photodetectors to demonstrate link losses of 19.6 and 22.9 dB at RF carrier frequencies of 9 and 16 GHz, respectively. Analytic expressions validating the experimental observations are also developed. The link may be employed to detect phase sensitive or phase-modulated microwave signals and shows excellent potential for application in sensor systems involving remoting of an antenna element

Keywords

optical fibre communication; optical fibre losses; optical signal detection; photodetectors; 19.6 to 22.9 dB; 9 to 16 GHz; RF carrier frequencies; analog fiber-optic link; antenna element remoting; electrical power combining; link losses; low-loss downconverting; microwave signal detection; microwave signal downconversion; optical amplification; phase sensitive microwave signals; phase-modulated microwave signals; photodetectors; sensor systems; Fiber nonlinear optics; High speed optical techniques; Nonlinear optics; Optical mixing; Optical modulation; Optical pumping; Optical receivers; Optical saturation; Optical sensors; Radio frequency;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.414584

Filename

414584