Realization of optical fibers terminated with ball lenses

Guzowski, B.; Lisik, Zbigniew; Tosik, G.

doi:10.1515/bpasts-2016-0031

Cited by 4 publications

(5 citation statements)

References 17 publications

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“…[ 24,47 ] The ball microlenses were created by melting the ends of multimode fibers. [ 48 ] To the best of our knowledge, the formation of curvilinear localized beams (fiber‐based PH) in such a scheme has not been previously considered in the literatures. The mesoscale dimensions and simplicity of the fiber‐based hook scalpel are much more controllable for a variety of functional applications.…”

Section: Resultsmentioning

confidence: 99%

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Minin

Liu²,

Tuchin

et al. 2020

Journal of Biophotonics

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Structured light have made deep impacts on modern biotechnology and clinical practice, with numerous optical systems and lasers currently being used in medicine to treat disease. We demonstrate a new concept of fiber‐based optical hook scalpel. The subwavelength photonic hook is obtained in the vicinity of a shaped fiber tip with asymmetric radiation. A 1550 nm continuous‐wave source, commonly used for medical imaging, has been required. Photonic hook with a lateral feature size less than the half‐wavelength is achieved using a hemispherical shaped fiber tip with metallic mask. This breakthrough is carried out in ambient air by using a 4‐μm‐diameter fiber with a shaped tip. A good correlation is observed between the computed intensity distribution of photonic hook and the tip sizes. Photonic hook generated with a shaped fiber tip, easier to manipulate, shows far‐reaching benefits for potential applications such as ophthalmic laser surgery, super‐resolution microscopy, photolithography and material processing.

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Section: Resultsmentioning

confidence: 99%

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Minin

Liu²,

Tuchin

et al. 2020

Journal of Biophotonics

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“…Typically, the fiber ball is fabricated by a controlled electric arc discharge on the fiber tip, from the manual operation of a fusion splicer. The discharge parameters such as time and power are optimized to control the ball diameter and shape, from both single-mode and multimode fibers [ 27 , 28 , 29 , 30 ]. Nowadays, fusion splicers with features for special fibers fabrication, such as fiber ball lenses and tapered fibers, are currently available.…”

Section: Fiber Ball Lens Interferometermentioning

confidence: 99%

Refractive Index Fiber Laser Sensor by Using a Fiber Ball Lens Interferometer with Adjustable Free Spectral Range

Álvarez-Tamayo

Prieto-Cortés

2023

Sensors

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In this work, a fiber laser refractometer based on a fiber ball lens (FBL) interferometer is proposed. The linear cavity erbium-doped fiber laser uses an FBL structure acting as a spectral filter and sensing element for determining the RI of a liquid medium surrounding the fiber. The optical interrogation of the sensor is the wavelength displacement of the generated laser line as a function of the RI variations. For the proposed FBL interferometric filter, the free spectral range of its wavelength-modulated reflection spectrum is adjusted to maximum in order to obtain RI measurements in a range of 1.3939 to 1.4237 RIU, from laser wavelength displacements in a range from 1532.72 to 1565.76 nm. The obtained results show that the wavelength of the generated laser line is a linear function of the RI variations on the medium surrounding the FBL with a sensitivity of 1130.28 nm/RIU. The reliability of the proposed fiber laser RI sensor is analytically and experimentally investigated.

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“…The carbon dioxide laser fusion splicer (LZM-110, Fujikura, Ltd., Tokyo, Japan) was used in the production process. The laser power was 175 bits (about 5.2 W), the laser heating time was 2 s, and the heating was performed twice [37]. The sensor was assembled and sealed by using CO2 laser, which was beneficial for improving the sensor performance and avoiding thermal mismatch between the adhesive and the fiber-optic [38], as shown Figure 3j.…”

Section: Fabrication Of the Sensormentioning

confidence: 99%

MEMS-Based Reflective Intensity-Modulated Fiber-Optic Sensor for Pressure Measurements

Zhou

Jia

Liu

et al. 2020

Sensors

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A reflective intensity-modulated fiber-optic sensor based on microelectromechanical systems (MEMS) for pressure measurements is proposed and experimentally demonstrated. The sensor consists of two multimode optical fibers with a spherical end, a quartz tube with dual holes, a silicon sensitive diaphragm, and a high borosilicate glass substrate (HBGS). The integrated sensor has a high sensitivity due to the MEMS technique and the spherical end of the fiber. The results show that the sensor achieves a pressure sensitivity of approximately 0.139 mV/kPa. The temperature coefficient of the proposed sensor is about 0.87 mV/°C over the range of 20 °C to 150 °C. Furthermore, due to the intensity mechanism, the sensor has a relatively simple demodulation system and can respond to high-frequency pressure in real time. The dynamic response of the sensor was verified in a 1 kHz sinusoidal pressure environment at room temperature.

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Realization of optical fibers terminated with ball lenses

Cited by 4 publications

References 17 publications

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Concept of photonic hook scalpel generated by shaped fiber tip with asymmetric radiation

Refractive Index Fiber Laser Sensor by Using a Fiber Ball Lens Interferometer with Adjustable Free Spectral Range

MEMS-Based Reflective Intensity-Modulated Fiber-Optic Sensor for Pressure Measurements

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