Photonic Calibration of Sweeping Oscillator and Its Application to RF Measurement

Author

Kun Xu ; Li Yan ; Feifei Yin ; Yitang Dai ; Junyi Zhang ; Jianqiang Li ; Yuefeng Ji ; Jintong Lin

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

32

Issue

1

fYear

2014

fDate

Jan.1, 2014

Firstpage

55

Lastpage

62

Abstract

A photonic system is proposed to calibrate the instantaneous frequency and glitches of a fast frequency sweeping oscillator using a pseudo random bit sequence (PRBS) frequency comb. Its performance is demonstrated by simulations and experiments. A vector signal generator (Agilent E8257D), whose frequency ranges from 0.5 to 2.5 GHz and from 2.5 to 5 GHz, respectively, is calibrated. The deviation from linearity of frequency sweeping is measured to be less than 0.02%. As an extension of the calibrating system, the characterized sweeping oscillator is applied to multi-tone radio frequency (RF) measurement with an accuracy of 5 kHz and a resolution of 1 MHz. This technique will find applications in the field of electronic warfare and communication systems.

Keywords

calibration; optical signal detection; oscillators; radiofrequency measurement; signal generators; RF measurement; photonic calibration; photonic system; pseudo random bit sequence frequency comb; sweeping oscillator; vector signal generator; Bandwidth; Chirp; Frequency modulation; Optical filters; Oscillators; Time-frequency analysis; Calibration; microwave measurement; optical signal processing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2288414

Filename

6654270