A high-resolution optical vector network analyzer with the capability of measuring bandpass devices

Tang, Zhenzhou; Pan, Shilong

doi:10.1109/mwp.2013.6724061

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…However, the measurement of the transmission response is especially complicated because the full transmission response can be finally obtained by overlapping transmission responses of the adjacent segments. Another possible solution is based on splitting the optical carrier and sideband into two paths [23]. However, the key limitation of this method is that the phase response of the optical component is hard to be measured.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Widely tunable single bandpass microwave photonic filter based on Brillouin-assisted optical carrier recovery

Wang¹,

Liu²,

Wen³

et al. 2014

Opt. Express

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A widely tunable single bandpass microwave photonic filter (MPF) based on Brillouin-assisted optical carrier recovery in a highly nonlinear fiber (HNLF) with only one optical filter is proposed and experimentally demonstrated. The fundamental principle lies in the fact that the suppressed optical carrier of the phase modulated optical signal could be recovered by the stimulated Brillouin scattering (SBS) amplification effect. When phase modulated optical signals go through an optical filter with a bandpass response, the optical carrier and the upper sidebands suffer from the suppression of the optical filter because they fall in the stopband of that. In our system, the optical carrier could be recovered by the SBS operation around 38 dB. The MPF is achieved by one-to-one mapping from the optical domain to the electrical domain only when one of phase modulated sidebands lies in the bandpass of the optical filter. It shows an excellent selectivity with a 3-dB bandwidth of 170 MHz over a tuning frequency range of 9.5-32.5 GHz. The out-of-band suppression of the MPF is more than 20 dB. Moreover, the MPF shows an excellent shape factor with 10-dB bandwidth of only 520 MHz. The frequency response of the MPF could be widely tuned by changing the frequency difference between the frequency of the optical carrier and the center frequency of the bandpass of the optical filter. A proof-of-concept experiment is carried out to verify the proposed approach.

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Section: Experiments and Resultsmentioning

confidence: 99%

Widely tunable single bandpass microwave photonic filter based on Brillouin-assisted optical carrier recovery

Wang¹,

Liu²,

Wen³

et al. 2014

Opt. Express

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“…To increase the spectral resolution, OVAs based on optical single-sideband (OSSB) modulation were proposed [3][4][5][6][7][8][9][10][11][12][13][14][15][16], which theoretically allows the obtaining of an ultrahigh-resolution in units of hertz. In [3], a resolution of 78 kHz was obtained in practice.…”

Section: Ova Based On Optical Single-sideband Modulationmentioning

confidence: 99%

“…To increase the dynamic range in [15], it was proposed that the optical paths of the carrier and scanning sideband were separated. The carrier passes through the reference path without passing through the device under test, and the sideband passes through the DUT.…”

Section: Improving Dynamic Rangementioning

confidence: 99%

Ultrahigh-Resolution Optical Vector Analyzers

et al. 2020

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The optical vector analyzer is a device used to measure the magnitude, phase responses, and other parameters of optical devices. There have been increasingly higher demands placed on optical vector analyzers during the development of optical technologies, which are satisfied by the creation of new devices and their operating principles. For further development in this area, it is necessary to generalize the experience gained during the development of optical vector analyzers. Thus, in this report, we provide an overview of all the basic types of approaches used for the realization of optical vector analyzers, including the advanced ones with the best performances. The principles of their working, as well as their associated advantages, disadvantages, and existing solutions to the identified problems, are examined in detail. The presented approaches could be of value and interest to those working in the field of laser dynamics and optical devices, as we propose one use of the optical vector analyzer as being the characterization of Fano resonance structures.

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“…As a result, the recovered microwave signal in a photodetector (PD) is extremely weak, resulting in large measurement errors. To overcome this limitation, Z. Tang and S. Pan [14] proposed a possible method. The optical carrier and sideband are separated into two paths.…”

Section: Introductionmentioning

confidence: 99%

Optical Vector Network Analyzer Based on Single-Sideband Modulation and Segmental Measurement

Wang

et al. 2014

IEEE Photonics J.

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We propose an optical vector network analyzer (OVNA) based on singlesideband (SSB) modulation and segmental measurement. The motivation of this work lies in the fact that it is hard for the previous SSB-based OVNA to measure a device-under-test (DUT) with bandpass response. In our scheme, the transmission response of the DUT is divided into several segments, which are measured one by one using the SSB modulation method. The frequency interval between adjacent segments is precisely controlled by a microwave source. The full transmission response of the DUT is obtained by combining the measured results of different segments. The adjacent segments are connected using the overlapped transmission responses. A proof-of-concept experiment was carried out to measure the transmission response of an optical bandpass filter. It was successfully obtained over a frequency range of 80.05 GHz with a resolution of 25 MHz.

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A high-resolution optical vector network analyzer with the capability of measuring bandpass devices

Cited by 9 publications

References 11 publications

Widely tunable single bandpass microwave photonic filter based on Brillouin-assisted optical carrier recovery

Widely tunable single bandpass microwave photonic filter based on Brillouin-assisted optical carrier recovery

Ultrahigh-Resolution Optical Vector Analyzers

Optical Vector Network Analyzer Based on Single-Sideband Modulation and Segmental Measurement

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