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Browsing by Author "Wuilpart, Marc"
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Analysis and suppression of nonlinear frequency modulation in an optical frequency-domain reflectometer
Yüksel, Kıvılcım; Wuilpart, Marc; Mégret, Patrice (Optical Society of America, 2009-03)A new method for monitoring the nonlinearities perturbing the optical frequency sweep in high speed tunable laser sources is presented. The swept-frequency monitoring system comprises a Mach-Zehnder interferometer and ... -
Centralised optical monitoring of tree-structured passive optical networks using a raman-assisted OTDR
Yüksel, Kıvılcım; Letheux, S.; Grillet, A.; Wuilpart, Marc; Giannone, D.; Hancq, J.; Ravet, G.; Mégret, Patrice (IEEE, 2007)Monitoring of tree-structured Passive Optical Networks from a central office is difficult to achieve using a standard OTDR. Switchable reflective elements placed at the ONU can help to discriminate between the branches. ... -
Complete analysis of multireflection and spectral-shadowing crosstalks in a quasi-distributed fiber sensor interrogated by OFDR
Yüksel, Kıvılcım; Moeyaert, Véronique; Mégret, Patrice; Wuilpart, Marc (IEEE, 2012)We present the analysis of a quasi-distributed fiber sensor based on the concatenation of identical low-reflective fiber Bragg gratings (FBGs) taking into account both multireflection and spectral-shadowing crosstalks. ... -
Development of a phase-OTDR interrogator based on coherent detection scheme
Yüksel, Kıvılcım; Jason, Johan; Wuilpart, Marc (Uludağ University, 2018-12)We present in this work, the experimental demonstration of a phase-sensitive Optical Time- Domain Reflectometer (phase-OTDR) having coherent detection scheme. An analysis algorithm has also been developed to calculate ... -
Infrared radiation detector interrogated by optical frequency-domain reflectometer
Yüksel, Kıvılcım; Caucheteur, Christophe; Renoirt, Jean-Michel; Debliquy, Marc; Mégret, Patrice; Wuilpart, Marc (Elsevier, 2012-03)We experimentally demonstrated a fast infrared (IR) radiation sensor. It is capable of measuring IR radiation independently from the environmental temperature fluctuations. Experimental work shows that this IR detection ... -
Laboratory evaluation of a phase-OTDR setup for railway monitoring applications
Jason, J.; Yüksel, Kıvılcım; Wuilpart, Marc (2017-11)Phase-sensitive optical time-domain reflectometry (phase-OTDR) has recently drawn increased attention for applications within the railway transportation sector. In this paper we present a laboratory approach to demonstrate ... -
Novel monitoring technique for passive optical networks based on optical frequency domain reflectometry and fiber bragg gratings
Yüksel, Kıvılcım; Wuilpart, Marc; Moeyaert, Véronique; Mégret, Patrice (Optical Society of America, 2010-07)An efficient monitoring method having a very short measurement time (a few seconds) is proposed. The equal-length branches can be effectively monitored, but also the information of temperature at any place in the network ... -
Optical Frequency Domain Reflectometry: A review
Yüksel, Kıvılcım; Wuilpart, Marc; Moeyaert, Véronique; Mégret, Patrice (IEEE, 2009)In this paper, we discuss the operation principles, challenges and application areas of optical frequency domain reflectometry technique. A review of OFDR systems is given considering both Incoherent-OFDR and Coherent- ... -
Optical layer monitoring in passive optical networks (PONs): A review
Yüksel, Kıvılcım; Moeyaert, Véronique; Wuilpart, Marc; Mégret, Patrice (IEEE, 2008)Motivations, challenges and requirements of optical layer monitoring in PONs are discussed. An exhaustive review of monitoring systems is given considering both Time-Division Multiplexed PON (TDM-PON) and Wavelength-Division ... -
A quasi-distributed temperature sensor interrogated by optical frequency-domain reflectometer
Yüksel, Kıvılcım; Mégret, Patrice; Wuilpart, Marc (IOP Publishing, 2011-11)This paper presents the analysis of a quasi-distributed sensor based on the concatenation of identical low-reflective fiber Bragg gratings. We experimentally demonstrated a temperature sensor using ten cascaded gratings ...
