Determination of geometry-induced positional distortion of ultrafast laser-inscribed circuits in a cylindrical optical fiber

Ji, Peng; Lee, Sang‐Shin; Im, Young-Eun; Choi, Younghee

doi:10.1364/ol.44.000610

Cited by 8 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ultrafast laser inscription (ULI) has been well established as one of the most efficient micromachining techniques, providing a powerful and flexible tool for the fabrication of three-dimensional photonic devices in dielectric materials [36]. Focused ultrashort laser pulses are known to provide the ability to locally modify the RI of the material through nonlinear energy transfer processes [37,38].…”

Section: Introductionmentioning

confidence: 99%

Fiber Reshaping-Based Refractive Index Sensor Interrogated through Both Intensity and Wavelength Detection

Jiang

Lee

2019

Sensors

Self Cite

View full text Add to dashboard Cite

A fiber reshaping-based refractive index (RI) sensor is proposed relying on both optical intensity variation and wavelength shift. The objective of this study is to completely reshape the core and to ultimately mimic a coreless fiber, thereby creating a highly efficient multimode interference (MMI) coupler. Thus, propagation modes are permitted to leak out into the cladding and eventually escape out of the fiber, depending on the surrounding environment. Two interrogation mechanisms based on both the intensity variation and wavelength shift are employed to investigate the performance of the RI sensor, with the assistance of leaky-mode and MMI theories. By monitoring the output intensity difference and the wavelength shift, the proposed RI sensor exhibits high average sensitivities of 185 dB/RIU and 3912 nm/RIU in a broad range from 1.339 to 1.443, respectively. The operating range and sensitivity can be adjusted by controlling the interaction length, which is appealing for a wide range of applications in industry and bioscience research.

show abstract

Section: Introductionmentioning

confidence: 99%

Fiber Reshaping-Based Refractive Index Sensor Interrogated through Both Intensity and Wavelength Detection

Jiang

Lee

2019

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…Next, the laser focus was moved 1 μm along the z direction to the central plane of the fiber, and the same scanning track was repeated to create the second layer. The distance between the laser focus scanning plane and the fiber center plane (at least 39.5 μm) was sufficiently secured to avoid spherical aberration during the laser scanning process [ 32 ]. This process created a polished area on one side of the fiber.…”

Section: Fabrication and Experimentsmentioning

confidence: 99%

Highly Efficient Refractive Index Sensor Based on a Dual-Side Polished SMS Fiber Enabled by Femtosecond Laser Writing

Jiang

Aberdeen

et al. 2023

Sensors

Self Cite

View full text Add to dashboard Cite

Fiber-optic refractive index (RI) sensors based on wavelength-shift-based interrogation continue to present a challenge in achieving high sensitivity for a wide detection range. In this paper, we propose a sensor for determining the RI of liquids based on femtosecond laser (fs-laser) writing of a dual-side polished singlemode–multimode–singlemode (SMS) fiber. The proposed sensor can determine the RI value of a surrounding liquid by detecting the dip wavelength in the transmission spectrum of the light propagating through the sensing area. The high RI sensitivity is attributed to the increased interaction area established by the fs-laser, which creates hydrophilic surfaces and maintains the wide detection range of the SMS structure. The results of the wavelength-shift-based interrogation reveal that the fabricated device exhibited a high sensitivity of 161.40 nm per refractive index unit (RIU) over a wide RI detection range of 0.062 RIU. The proposed device has high processing accuracy and a simple manufacturing process. Hence, it has the potential to be used as a lab-on-fiber sensing platform in chemical and biotechnological applications.

show abstract

“…With this specific phase mask, the Bragg wavelength is expected to be near 1537 nm. Here, while the acylindrical lens reduces the spherical aberrations in the (x, y) plane [34], the phase mask essentially stabilizes the multi-filamentation process that might occur in the (y, z) plane [35]. The writing beam is thus distributed over 1000s of periodically arranged spots which allows us to parallelize and speed up significantly the waveguide processing up to millimeters per second, while usually limited to a few micrometers per second in fused silica with such low repetition rate laser system [36], although some progress has been reported recently [37].…”

mentioning

confidence: 99%

Ultrafast laser writing of arbitrary long low-loss waveguides in optical fibers

Colliard

Bilodeau²,

Boilard³

et al. 2022

Opt. Lett.

View full text Add to dashboard Cite

We propose an innovative femtosecond laser writing approach, based on a reel-to-reel configuration, allowing the fabrication of arbitrary long optical waveguides in coreless optical fibers directly through the coating. We report few meters long waveguides operating in the near-infrared (near-IR) with propagation losses as low as 0.055 ± 0.004 dB/cm at 700 nm. The refractive index distribution is shown to be homogeneous with a quasi-circular cross section, its contrast being controllable via the writing velocity. Our work paves the way for the direct fabrication of complex arrangements of cores in standard and exotic optical fibers.

show abstract

Determination of geometry-induced positional distortion of ultrafast laser-inscribed circuits in a cylindrical optical fiber

Cited by 8 publications

References 31 publications

Fiber Reshaping-Based Refractive Index Sensor Interrogated through Both Intensity and Wavelength Detection

Fiber Reshaping-Based Refractive Index Sensor Interrogated through Both Intensity and Wavelength Detection

Highly Efficient Refractive Index Sensor Based on a Dual-Side Polished SMS Fiber Enabled by Femtosecond Laser Writing

Ultrafast laser writing of arbitrary long low-loss waveguides in optical fibers

Contact Info

Product

Resources

About