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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 20580–20585

Photonic approach to microwave frequency measurement with digital circular-code results

Xihua Zou, Wei Pan, Bin Luo, Lianshan Yan, and Yushi Jiang  »View Author Affiliations


Optics Express, Vol. 19, Issue 21, pp. 20580-20585 (2011)
http://dx.doi.org/10.1364/OE.19.020580


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Abstract

A photonic approach to measuring microwave frequency with digital results is proposed and experimentally demonstrated. In the proposed approach, N photonic phase-shifted filters with a phase shift increment of π/N in the transmission responses are designed. The filters are then employed to process the single optical sideband generated by applying a microwave signal to a single sideband suppressed-carrier (SSB-SC) modulation module, to perform frequency-to-amplitude conversion and analog-to-digital conversion simultaneously. After the implementation of power detection and decision operation to the filtered optical sideband, an N-bit result in the form of the circular code is obtained, which indicates the frequency of the microwave signal. A proof-of-concept experiment is performed to verify the proposed approach and a 5-bit circular code is generated to indicate microwave frequency up to 40 GHz.

© 2011 OSA

OCIS Codes
(230.0250) Optical devices : Optoelectronics
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Optical Devices

History
Original Manuscript: July 28, 2011
Revised Manuscript: September 3, 2011
Manuscript Accepted: September 4, 2011
Published: October 3, 2011

Citation
Xihua Zou, Wei Pan, Bin Luo, Lianshan Yan, and Yushi Jiang, "Photonic approach to microwave frequency measurement with digital circular-code results," Opt. Express 19, 20580-20585 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-21-20580


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