Self-supported light induced polymer waveguide for thin optical fiber interconnection

Mohammed, Pshko A.; Mahmood, Salah Qadir; Aziz, Shujahadeen B.; Mohammed, Bakhtiyar K.

doi:10.1016/j.yofte.2021.102792

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…Finally, P.A. Mohamed et al studied visible SWW between two single-mode fibers at 980 nm (SMF980, core size: 4.5 µm) and measured the optical losses at 1550 nm (3.5 dB for a 60-µm gap spacing) [8]. In all these works, the writing wavelength is not the one at which the coupled elements are used, with one wavelength for the SWW fabrication, and a higher one for SWW coupling measurement and use.…”

Section: Introductionmentioning

confidence: 99%

NIR photopolymerization self-writing process for fiber-to-fiber single mode coupling

Jebali,

Molinaro,

Roul

et al. 2024

Semiconductor Lasers and Laser Dynamics XI

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Low-loss coupling of VCSELs (vertical-cavity surface-emitting lasers) to optical fibres is a key issue for increasing their use in optical communications and instrumentation systems. However, tolerances on angular tilts and lateral misalignments are tight, particularly in the case of single mode devices. To address this challenge, a new fabrication method based on near-infrared single-mode self-writing (NIR-SM-SWW) of a polymer waveguide was developed and tested for the coupling of two single mode fibers at 850 nm (Thorlabs 780-HP) with a mode field diameter close to that of 850 nm single mode VCSEL. The specificity of our method is to use a writing wavelength identical to that designed for single mode propagation in the fibers, leading to a single step photopolymerization process that will be directly transferable to 850 nm VCSEL-to-fiber coupling. First results show coupling losses at 850 nm as low as 0.86 dB for a distance between the fibers of 100 µm.

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Section: Introductionmentioning

confidence: 99%

NIR photopolymerization self-writing process for fiber-to-fiber single mode coupling

Jebali,

Molinaro,

Roul

et al. 2024

Semiconductor Lasers and Laser Dynamics XI

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“…Furthermore, it can be used to fabricate a self-aligned polymer optical waveguide by applying the light emitted from the optical components to the photopolymerizing resin. [4][5][6][7][8][9][10][11][12][13][14][15] For silicon photonics devices, inexpensive and efficient coupling can be realized by passive alignment with an accuracy of a few microns and subsequent LISW optical self-coupling. [16,17] We previously reported the LISW optical self-coupling between a silicon waveguide with a spot-size converter and SMF.…”

Section: Introductionmentioning

confidence: 99%

All‐Solid Near‐Infrared Light‐Induced Self‐Written Optical Waveguides and Optical Self‐Coupling

Kawasaki,

Otaka,

Ota

et al. 2023

Physica Status Solidi (a)

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In recent datacenters, considerable data communication has been performed between servers and storages; therefore, an optical interconnection with a wider band is required. Silicon photonics has attracted attention as a technology that places optical engines closer to switch application‐specific integrated circuits and realizes broadband optical interconnection. To utilize silicon photonics, it is necessary to overcome high‐precision alignment between silicon waveguides and single‐mode fibers (SMFs) having vastly different mode field diameters. Optical self‐coupling using light‐induced self‐written (LISW) optical waveguide technology is a potential solution. Previously, near‐infrared (NIR) LISW optical waveguides are fabricated using an SMF with an approximate 10 μm core through irradiation with 10 μW NIR light (1310 and 1550 nm). However, the cladding is liquid, which motivates to fabricate all‐solid LISW optical waveguides. In this study, all‐solid NIR LISW optical waveguides are produced using a core‐selective polymerization method, and single‐mode LISW optical self‐coupling between two SMFs is realized. To enhance the performance of the waveguides, additional resins are incorporated into the high‐refractive‐index base monomer during the cladding formation process. Through the experimentation, the potential for achieving even greater loss reduction by optimizing the hybridization between the base monomer and the supplementary resins is demonstrated.

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“…Common coupling structures such as mirrors, gratings or tapers in different shapes have been broadly investigated [8][9][10][11]. A new technique, which has evolved during the last decade, is the utilization of self-written waveguides (SWWs) as coupling elements [12][13][14][15][16]. These polymer based structures enable lowloss connections, i.e., between waveguides (regardless of their shape and size), fibers, light sources and detectors [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized thin-film filters to connect multiple self-written waveguides

Günther

Kushwaha

Rüsseler

et al. 2023

J. Opt.

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Self-written waveguides (SWW) have been well investigated within the last decades. In most cases, they are used as low-loss coupling structures, i.e. to connect buried optical structures in photonic integrated circuits. In our work, we extend the ﬁeld of possible applications for SWWs by embedding a novel thin-ﬁlm ﬁlter to split the beam and connect multiple output ports simultaneously. The multilayer design of the dielectric ﬁlter can be customized to enable its application as dichroic beamsplitter for photonic networks. The embedded thin-ﬁlm ﬁlter was characterized in detail and used to connect an additional optical sensing element, which is also based on SWWs, to demonstrate its usability for measurement of physical quantities.

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Self-supported light induced polymer waveguide for thin optical fiber interconnection

Cited by 6 publications

References 30 publications

NIR photopolymerization self-writing process for fiber-to-fiber single mode coupling

NIR photopolymerization self-writing process for fiber-to-fiber single mode coupling

All‐Solid Near‐Infrared Light‐Induced Self‐Written Optical Waveguides and Optical Self‐Coupling

Miniaturized thin-film filters to connect multiple self-written waveguides

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