On the characterization of optical fiber network components with optical frequency domain reflectometry

Weid, J. P. von der; Passy, R.; Mussi, Giorgio; Gisin, Nicolas

doi:10.1109/50.596958

Cited by 127 publications

(43 citation statements)

References 22 publications

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“…(8) because the FFT resolution in this case is 9.2 mm, which is twice the theoretical spatial resolution shown in Eq. (9). The peaks appeared at the data number of 260, 390 and 520 are due to multiple reflection between the input and the output facets (points B and C in Fig.…”

Section: Resultsmentioning

confidence: 96%

Extended-Range High-Resolution FMCW Reflectometry by Means of Electronically Frequency-Multiplied Sampling Signal Generated from Auxiliary Interferometer

Iiyama¹

2006

IEICE Transactions on Electronics

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SUMMARYHigh-resolution FMCW reflectometry is often realized by sampling the beat signal with a clock signal generated from an auxiliary interferometer. The drawback of this system is that the measurement range is limited to less than half of the optical path difference of the auxiliary interferometer to satisfy the Sampling theorem. We propose and demonstrate a method to extend the measurement range of the system. The clock signal gerenerated from the auxiliary interferometer is electronically frequencymultipled by using a PLL circuit. The measurement range is experimentally extended by a factor of 20 while keeping high spatial resolution, and is theoretically extended by a factor of 128. The advantage of the proposed system is that the optical path difference of the auxiliary interferometer can be kept short, which is very effective for obtaining the stable and low timejitter clock signal. key words: optical fiber sensing, optical ranging system, optical reflectometry, FMCW, OFDR

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Section: Resultsmentioning

confidence: 96%

Extended-Range High-Resolution FMCW Reflectometry by Means of Electronically Frequency-Multiplied Sampling Signal Generated from Auxiliary Interferometer

Iiyama¹

2006

IEICE Transactions on Electronics

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“…Although some initial experimental work has been reported [2,3], there remains a need for more complete theoretical foundation of the direct modulated semiconductor DFB laser use in C-OFDR. In [2,3], linear (span) sweep (chirp) of the DFB laser optical frequency can be obtained via triangular and sawtooth modulation of the source injected current.…”

Section: Introductionmentioning

confidence: 99%

“…Coherent Optical Frequency Domain Reflectometry technique (C-OFDR) [1][2][3] is the most suitable technique for the optical network components characterization [4][5][6][7][8]. Ideal reflectometry should have enough (high) spatial resolution to locate closely-separated reflection sites within the network under test, at interfaces in connectors, for example [9,10].…”

Section: Introductionmentioning

confidence: 99%

Study of dynamic chirp in direct modulated DFB laser for C-OFDR application

Boukari

Hassine

Bouchriha

et al. 2010

Optics Communications

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“…The OFDR technique uses continuous wave light source which is swept continuously in frequency. The sweep can be done by varying the optical carrier, coherent-OFDR, or its modulation envelope, incoherent-OFDR [32,39,40]. The coherent measurement consists of analyzing the heterodyne beat between a fixed reference reflection and the backscattered signal.…”

Section: Other Types Of Reflectometersmentioning

confidence: 99%

“…There are two main types of optical reflectometry, namely: Optical Time Domain Reflectometry (OTDR) [31] and Optical Frequency Domain Reflectometry (OFDR) [32]. Reflectometry techniques provide link characterization without the need of end-to-end measurements relying on the phenomena of Rayleigh backscattering.…”

Section: Fiber Monitoringmentioning

confidence: 99%

Automatic High-Dynamic and High-Resolution Photon Counting Otdr for Optical Fiber Network Monitoring

Calliari¹

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On the characterization of optical fiber network components with optical frequency domain reflectometry

Cited by 127 publications

References 22 publications

Extended-Range High-Resolution FMCW Reflectometry by Means of Electronically Frequency-Multiplied Sampling Signal Generated from Auxiliary Interferometer

Extended-Range High-Resolution FMCW Reflectometry by Means of Electronically Frequency-Multiplied Sampling Signal Generated from Auxiliary Interferometer

Study of dynamic chirp in direct modulated DFB laser for C-OFDR application

Automatic High-Dynamic and High-Resolution Photon Counting Otdr for Optical Fiber Network Monitoring

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