Circular core single-mode polymer optical waveguide fabricated using the Mosquito method with low loss at 1310/1550 nm

Yasuhara, Kazuki; Yu, Feng; Ishigure, Takaaki

doi:10.1364/oe.25.008524

Cited by 49 publications

(15 citation statements)

References 13 publications

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“…After the UV curing step, postbaking at 150 • C is carried out for approximately 20 minutes [18]. The core diameter is controlled to a desired value by adjusting the dispensing pressure and needle-scan velocity, and actually the waveguides with almost 50-µm core diameter are obtained, while even single-mode waveguides with less than 10-µm cores are also fabricated [19], [20]. The design for the 3-dimensional shuffling polymer waveguide to be fabricated is shown in Fig.…”

Section: Fabrication Proceduresmentioning

confidence: 99%

Low-Loss 3-Dimensional Shuffling Graded-Index Polymer Optical Waveguides for Optical Printed Circuit Boards

Rasel

Yamauchi

Ishigure³

2018

IEICE Trans. Electron.

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This paper introduces a formation method for 3dimensional 6 ch. × 6 ch. shuffling structures with graded-index (GI) circular core in a multimode polymer optical waveguide for optical printed circuit boards (OPCBs) using a unique photomask-free fabrication technique named the Mosquito method. The interchannel pitch of the fabricated waveguides is 250 µm, where all the channels consist of both horizontal and vertical bending structures and the last 6 channels in parallel cross over the first 6 channels. We also report 3-dimensional S-shaped polymer waveguides. In the S-shaped waveguides, the first and last 6 channels with both horizontal and vertical core bending composing the above 3-dimensional shuffling waveguide are separated, in order to evaluate the effect of over-crossing on the loss. It is experimentally confirmed that there is no excess insertion loss due to the shuffling structure in the 3-D shuffling waveguide. The evaluated crosstalk of the 3-D shuffling waveguide is lower than −30 dB. The 3-D shuffling waveguide proposed in this paper will be a promising component to achieve high bandwidth density wiring for on-board optical interconnects.

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Section: Fabrication Proceduresmentioning

confidence: 99%

Low-Loss 3-Dimensional Shuffling Graded-Index Polymer Optical Waveguides for Optical Printed Circuit Boards

Rasel

Yamauchi

Ishigure³

2018

IEICE Trans. Electron.

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“…We succeeded in fabricating single-mode polymer optical waveguides as well as multimode waveguides using the Mosquito method that we developed [7], and demonstrated the low propagation loss even at 1310/1550 nm wavelengths [8]. One of the features of the Mosquito method is that gradedindex (GI) profiles are formed in circular cores, because of the material diffusion between the core and cladding [9].…”

Section: Introductionmentioning

confidence: 99%

Polarization Dependence of Optical Properties of Single-Mode Polymer Optical Waveguides Fabricated Under Different Processes at 1310/1550 nm

Morimoto

Matsui

Hikita

et al. 2020

J. Lightwave Technol.

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We experimentally investigate the polarization dependence of the optical properties of single-mode polymer optical waveguides. We compare two types of waveguides composed of the same polymer materials: step-index square-core waveguides fabricated using the direct curing method and graded-index (GI) circular-core waveguides fabricated using the Mosquito method. We demonstrate that the GI circular-core single-mode waveguides exhibit remarkably small dependence of optical loss on the polarization angle, which is less than 0.1 dB polarization dependent loss (PDL) at both 1310 and 1550 nm wavelengths. This steady polarization property is attributed to the material stress free to the composing polymers during the fabrication process of the Mosquito method and to parabolic GI profile formed in symmetric circular core. Index Terms-Direct curing method, graded-index, optical interconnections, polarization dependent optical property, singlemode polymer optical waveguides, step-index, the Mosquito method.

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“…Despite these advantages, single-mode polymer waveguides generally exhibit much higher propagation losses compared to their multi-mode counterparts. While propagation losses as low as 0.03 dB/cm have been demonstrated in multi-mode waveguides [25][26][27][28][29][30][31][32][33], the minimal loss figures in single-mode waveguides remain at 0.14 dB/cm (at 808 nm wavelength [33]) mainly due to increased modal overlap with roughness and defects at the core/cladding interfaces.…”

Section: Introductionmentioning

confidence: 99%

Low loss, flexible single-mode polymer photonics

Zuo

et al. 2019

Opt. Express

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Single-mode polymer photonics is of significant interest to short-reach data communications, photonic packaging, sensing, and biophotonic light delivery. We report here experimental demonstration of mechanically flexible waveguides fabricated by using commercial off-the-shelf biocompatible polymers that claim a record low propagation loss of 0.11 dB/cm near 850 nm wavelength. We also show the excellent flexibility of the freestanding waveguides which can withstand repeated deformation cycles at millimeter bending radius without compromising their low-loss characteristics. High-performance passive optical components, such as waveguide Y-branches, multi-mode interferometers (MMIs), and waveguide crossings are also realized using the polymer photonics platform.

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Circular core single-mode polymer optical waveguide fabricated using the Mosquito method with low loss at 1310/1550 nm

Cited by 49 publications

References 13 publications

Low-Loss 3-Dimensional Shuffling Graded-Index Polymer Optical Waveguides for Optical Printed Circuit Boards

Low-Loss 3-Dimensional Shuffling Graded-Index Polymer Optical Waveguides for Optical Printed Circuit Boards

Polarization Dependence of Optical Properties of Single-Mode Polymer Optical Waveguides Fabricated Under Different Processes at 1310/1550 nm

Low loss, flexible single-mode polymer photonics

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