Fabrication of a side-polished fiber polarizer with a birefringent polymer overlay

Lee, S. G.; Sokoloff, J. P.; McGinnis, B. P.; Sasabe, Hiroyuki

doi:10.1364/ol.22.000606

Cited by 42 publications

(6 citation statements)

References 10 publications

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“…The side-polishing of an optical fibre has been extensively studied and reported, and it is a very good method to access the evanescent field of the guided mode [14,15]. For the fabrication of the sensor head we use a few centimetres of a multimode step index plastic optical fibre.…”

Section: Fabrication Of the Sensor Headmentioning

confidence: 99%

Fibre optic sensor for the detection of adulterant traces in coconut oil

Sheeba

Rajesh

Vallabhan

et al. 2005

Meas. Sci. Technol.

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The design and development of a fibre optic evanescent wave refractometer for the detection of trace amounts of paraffin oil and palm oil in coconut oil is presented. This sensor is based on a side-polished plastic optical fibre. At the sensing region, the cladding and a small portion of the core are removed and the fibre nicely polished. The sensing region is fabricated in such a manner that it sits perfectly within a bent mould. This bending of the sensing region enhances its sensitivity. The oil mixture of different mix ratios is introduced into the sensing region and we observed a sharp decrease in the output intensity. The observed variation in the intensity is found to be linear and the detection limit is 2% (by volume) paraffin oil/palm oil in coconut oil. The resolution of this refractometric sensor is of the order of 10 −3. Since coconut oil is consumed in large volumes as edible oil in south India, this fibre optic sensor finds great relevance for the detection of adulterants such as paraffin oil or palm oil which are readily miscible in coconut oil. The advantage of this type of sensor is that it is inexpensive and easy to set up. Another attraction of the side-polished fibre is that only a very small amount of analyte is needed and its response time is only 7 s.

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Section: Fabrication Of the Sensor Headmentioning

confidence: 99%

Fibre optic sensor for the detection of adulterant traces in coconut oil

Sheeba

Rajesh

Vallabhan

et al. 2005

Meas. Sci. Technol.

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“…Many applications of side-polished optical fibers, including temperature and pressure sensors, communication components such as filters [35], switches [36], and polarizers [37], have been reported since the late 1970s. Side-polished fibers are obtained by polishing nearly half the optical fiber to access the evanescent field from the fiber core.…”

Section: A Optical Fiber Gratingsmentioning

confidence: 99%

Focused Ion Beam Nanopatterning for Optoelectronic Device Fabrication

Kim

Danner²,

Raftery

et al. 2005

IEEE J. Select. Topics Quantum Electron.

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Abstract-Recent photonic device structures, including distributed Bragg reflectors (DBRs), one-dimensional (1-D) or twodimensional (2-D) photonic crystals, and surface plasmon devices, often require nanoscale lithography techniques for their device fabrication. Focused ion beam (FIB) etching has been used as a nanolithographic tool for the creation of these nanostructures. We report the use of FIB etching as a lithographic tool that enables sub-100-nm resolution. The FIB patterning of nanoscale holes on an epitaxially grown GaAs layer is characterized. To eliminate redeposition of sputtered materials during FIB patterning, we have developed a process using a dielectric mask and subsequent dry etching. This approach creates patterns with vertical and smooth sidewalls. A thin titanium layer can be deposited on the dielectric layer to avoid surface charging effects during the FIB process. This FIB nanopatterning technique can be applied to fabricate optoelectronic devices, and we show examples of 1-D gratings in optical fibers for sensing applications, photonic crystal vertical cavity lasers, and photonic crystal defect lasers. Index Terms-Focused ion beam (FIB), lithography, photonic crystal, vertical cavity surface-emitting laser (VCSEL).

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“…However, it is difficult to simultaneously satisfy the above requirements based on the conventional fiber polarizers [1][2][3][4][5]. Among them, a LPG based photonic crystal fiber (PCF) is not very practical for the difficult and expensive fabrication [1][2].…”

Section: Introductionmentioning

confidence: 99%