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

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.

[1]  D.B. Hunter,et al.  A photonic technique for microwave frequency measurement , 2006, IEEE Photonics Technology Letters.

[2]  J. Skilling,et al.  Algorithms and Applications , 1985 .

[3]  Wei Pan,et al.  Photonic approach for multiple-frequency-component measurement using spectrally sliced incoherent source. , 2010, Optics letters.

[4]  Kun Xu,et al.  A Simple Photonic-Assisted Microwave Frequency Measurement System Based on MZI With Tunable Measurement Range and High Resolution , 2010, IEEE Photonics Technology Letters.

[5]  A. Mitchell,et al.  A microwave channelizer and spectroscope based on an integrated optical Bragg-grating Fabry-Perot and integrated hybrid Fresnel lens system , 2006, IEEE Transactions on Microwave Theory and Techniques.

[6]  Jianping Yao,et al.  Instantaneous Microwave Frequency Measurement Using a Photonic Microwave Filter Pair , 2010, IEEE Photonics Technology Letters.

[7]  Arnan Mitchell,et al.  Instantaneous frequency measurement system using optical mixing in highly nonlinear fiber. , 2009, Optics express.

[8]  Chao Wang,et al.  Photonic Generation of Chirped Millimeter-Wave Pulses Based on Nonlinear Frequency-to-Time Mapping in a Nonlinearly Chirped Fiber Bragg Grating , 2008, IEEE Transactions on Microwave Theory and Techniques.

[9]  Sheel Aditya,et al.  Instantaneous Microwave Frequency Measurement Using a Photonic Microwave Filter With an Infinite Impulse Response , 2010, IEEE Photonics Technology Letters.

[10]  Miguel V Drummond,et al.  Photonic Instantaneous Microwave Frequency Measurement System Based on Signal Remodulation , 2010, IEEE Photonics Technology Letters.

[11]  Shilie Zheng,et al.  Photonic instantaneous measurement of microwave frequency using fiber Bragg grating , 2010 .

[12]  Songnian Fu,et al.  Instantaneous Microwave Frequency Measurement Using Programmable Differential Group Delay (DGD) Modules , 2010, IEEE Photonics Journal.

[13]  M. Attygalle,et al.  Improved Photonic Technique for Broadband Radio-Frequency Measurement , 2009, IEEE Photonics Technology Letters.

[14]  Xihua Zou,et al.  An Optical Approach to Microwave Frequency Measurement With Adjustable Measurement Range and Resolution , 2008, IEEE Photonics Technology Letters.

[15]  H. Emami,et al.  Reduced Cost Photonic Instantaneous Frequency Measurement System , 2008, IEEE Photonics Technology Letters.

[16]  Robert A. Minasian,et al.  Photonic signal processing of microwave signals , 2006 .

[17]  Boualem Boashash,et al.  Estimating and interpreting the instantaneous frequency of a signal. I. Fundamentals , 1992, Proc. IEEE.

[18]  Photonic instantaneous microwave frequency measurement based on two different phase modulation to intensity modulation conversions , 2011 .

[19]  Xihua Zou,et al.  An Approach to the Measurement of Microwave Frequency Based on Optical Power Monitoring , 2008, IEEE Photonics Technology Letters.

[20]  George C Valley,et al.  Photonic analog-to-digital converters. , 2007, Optics express.

[21]  W. Pan,et al.  Photonic Instantaneous Frequency Measurement Using a Single Laser Source and Two Quadrature Optical Filters , 2011, IEEE Photonics Technology Letters.

[22]  José Capmany,et al.  Microwave photonics combines two worlds , 2007 .

[23]  Songnian Fu,et al.  Instantaneous Microwave Frequency Measurement Based on Amplified Fiber-Optic Recirculating Delay Loop and BroadBand Incoherent Light Source , 2011, Journal of Lightwave Technology.

[24]  Boualem Boashash,et al.  Estimating and interpreting the instantaneous frequency of a signal. II. A/lgorithms and applications , 1992, Proc. IEEE.