On-fiber 3D printing of photonic crystal fiber tapers for mode field diameter conversion
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Online Publication Date2017-11-02
Print Publication Date2017-06
Permanent link to this recordhttp://hdl.handle.net/10754/626121
MetadataShow full item record
AbstractThe large mismatch between the Mode Field Diameter (MFD) of conventional single-mode fibers (SMFs) and the MFD of highly nonlinear Photonic Crystal Fibers (PCFs), that can be down to 1.5 μm, or Large Mode Area PCF, that can be up to 25 μm, would require a substantial fiber mode size rescaling in order to allow an efficient direct coupling between PCFs and SMFs. Over the years different solutions have been proposed, as fiber splicing of SMF to PCF. However these procedures are not straightforward, as they involve developing special splicing recipes, and can affect PCF optical properties at the splice interface .
CitationBertoncini A, Rajamanickam VP, Liberale C (2017) On-fiber 3D printing of photonic crystal fiber tapers for mode field diameter conversion. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). Available: http://dx.doi.org/10.1109/CLEOE-EQEC.2017.8086623.
Journal2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Showing items related by title, author, creator and subject.
Monitoring residual fouling after cleaning of multi-fiber membrane modules fiber-by-fiber using non-invasive MRI monitoringYan, Bin; Blankert, Bastiaan; Vogt, Sarah J.; Vrouwenvelder, Johannes S.; Johns, Michael L.; Fridjonsson, Einar O. (Water Research, Elsevier BV, 2022-11-25) [Article]In this study non-invasive low field magnetic resonance imaging (MRI) technology was used to monitor fouling induced changes in fiber-by-fiber hydrodynamics inside a multi-fiber hollow fiber membrane module containing 401 fibers. Using structural and velocity images the fouling evolution of these membrane modules were shown to exhibit distinct trends in fiber-by-fiber volumetric flow, with increasing fouling causing a decrease in the number of flow active fibers. This study shows that the fouling rate is not evenly distributed over the parallel fibers, which results in a broadening of the fiber to fiber flowrate distribution. During cleaning, this distribution is initially broadened further, as relatively clean fibers are cleaned more rapidly compared to clogged fibers. By tracking the volumetric flow rate of individual fibers inside the modules during the fouling-cleaning cycle it was possible to observe a fouling memory-like effect with residual fouling occurring preferentially at the outer edge of the fiber bundle during repeated fouling-cleaning cycle. These results demonstrate the ability of MRI velocity imaging to quantitatively monitor these effects which are important when testing the effectiveness of cleaning protocols due to the long term effect that residual fouling and memory-like effect may have on the operation of membrane modules.
Broadly Tunable Self-Injection Locked InAs/InP Quantum-dash Laser Based Fiber / FSO / Hybrid Fiber-FSO Communication at 1610 nmShemis, Mohamed Adel; Alkhazraji, Emad A.; Ragheb, Amr Mohamed; Khan, Muhammad Talal Ali; Esmail, Maged Abdullah; Fathallah, Habib Ali; Alshebeili, Saleh; Khan, Mohammed Zahed Mustafa (IEEE Photonics Journal, Institute of Electrical and Electronics Engineers (IEEE), 2018-02-26) [Article]We report a self-injection locked InAs/InP quantum-dash tunable laser with ~11 nm (1602-1613 nm) tuning window for next generation multiuser ultra-high capacity fiber/free-space optics (FSO)/hybrid fiber-FSO based optical networks. A tunability of >18 independently locked sub-carriers with ~28 dB side mode suppression ratio (SMSR) and stable (± 0.1 dBm) mode power is exhibited, and an estimated small injection ratio of ~-22 dBm is found to sustain locking and SMSR. Error free transmission of 100 Gb/s and 128 Gb/s externally modulated dual-polarization quadrature phase shift keying (DP-QPSK) signals over 20 km single mode fiber (SMF) and 16 m indoor FSO links, are demonstrated across 8 and 4 individual sub-carriers, respectively, thus covering the entire tuning range. Moreover, up to 168 (192) Gb/s successful transmission over 10 km SMF (BTB) and 176 Gb/s over 16 m FSO link, is achieved on ~1610 nm sub-carrier. Finally, a 128 Gb/s DP-QPSK transmission over 11 km SMF -8 m FSO -11 km SMF hybrid system is accomplished, thus paving the potential deployment of this single-chip, cost-effective and energy efficient tunable light source in multi-terabits/s next-generation passive optical networks (NG-PONs).
Temperature sensing of micron scale polymer fibers using fiber Bragg gratingsZhou, Jian; Zhang, Y.; Mulle, Matthieu; Lubineau, Gilles (Measurement Science and Technology, IOP Publishing, 2015-07-02) [Article]Highly conductive polymer fibers are key components in the design of multifunctional textiles. Measuring the voltage/temperature relationships of these fibers is very challenging due to their very small diameters, making it impossible to rely on classical temperature sensing techniques. These fibers are also so fragile that they cannot withstand any perturbation from external measurement systems. We propose here, a non-contact temperature measurement technique based on fiber Bragg gratings (FBGs). The heat exchange is carefully controlled between the probed fibers and the sensing FBG by promoting radiation and convective heat transfer rather than conduction, which is known to be poorly controlled. We demonstrate our technique on a highly conductive Poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS)-based fiber. A non-phenomenological model of the sensing system based on meaningful physical parameters is validated towards experimental observations. The technique reliably measures the temperature of the polymer fibers when subjected to electrical loading. © 2015 IOP Publishing Ltd.