Fabrication of optical 1x2 POF couplers using the laser-LIGA technique

Klotzbuecher, Thomas; Braune, Torsten; Dadic, D.; Sprzagala, M.; Koch, A.W.

doi:10.1117/12.470165

Cited by 31 publications

(12 citation statements)

References 6 publications

(6 reference statements)

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“…[4]. H. Mizuno, T.Klotzbuecher and Y.Takezawa have reported an excess loss of 1.0 dB, 2.6 dB and 1.41 dB respectively [2,3,4]. These POF waveguide couplers have a core diameter of 1000 )Jm.…”

Section: Introductionmentioning

confidence: 93%

Acrylic-based Y-branch plastic optical fiber attenuator

Ehsan

Rahman

2010

International Conference on Photonics 2010

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Ahstract-A low cost acrylic-based V-branch plastic optical fiber (POF) attenuator has been developed. The device is based on a simple Y -branch structure and composed of three segments: an input POF waveguide, a middle variable hollow waveguide taper and output POF waveguides. Non-sequential ray tracing model has been performed on the device showing the device working as simple two-port attenuator. The device mold insert has been fabricated using a desktop engraver machine with a V-groove opening of 1 mm which allows 1 mm core size POF fibers to be slotted into the mold insert. The attenuation of the device can be adjusted by a simple waveguide taper spacing controlled by the spacing of the input POF fiber in the hollow region. The device has a channel uniformity of 0.3 dB, coupling ratio of 53:47 and excess loss of 3.7 dB. Device attenuation ranges from 6.9 dB to 9.4 dB has been obtained for a waveguide taper spacing of 0 to 6 mm.

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Section: Introductionmentioning

confidence: 93%

Acrylic-based Y-branch plastic optical fiber attenuator

Ehsan

Rahman

2010

International Conference on Photonics 2010

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“…Works on planar-waveguide based symmetrical Y-branch POF couplers with core sizes of 1000 µm have been previously reported by Mizuno et al [4], Klotzbuecher et al [5] and Takezawa et al [6]. All of these devices have utilized branching angle of less than 10 • .…”

Section: Introductionmentioning

confidence: 99%

Plastic Optical Fiber Coupler With High Index Contrast Waveguide Taper

Ehsan

Shaari

Rahman

2011

PIER C

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A simple low-cost Y-branch plastic optical fiber (POF) coupler which can be assembled easily by the end users has been developed. The acrylic-based Y-Branch POF coupler consists of input POF fiber, a middle high index contrast waveguide taper and output POF fibers. The optical device is based on a 1 × 2 Y-branch coupler design with a middle high index contrast waveguide taper. Nonsequential ray tracing has been performed on the device giving an insertion loss of 4.68 dB and coupling ratio of 50 : 50. The middle waveguide taper region is constructed on the acrylic block itself without using any additional optical waveguiding medium injected into the engraved taper region. Fabrication of the devices is done by producing the device structures on an acrylic block using high speed CNC machining tool. Input and output POF fibers are inserted in to this device structure in such a way that they are passively aligned to the middle waveguide taper structure. The first prototype device shows an insertion loss of 7.5 dB and a splitting ratio of 50 : 50. A second prototype device which includes additional U-groove slots for the jacketed fibers shows an insertion loss of 5.9 dB and a splitting ratio of 50 : 50.

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“…These planar waveguide based couplers with core diameter of 1000 µm have been developed by others which include Mizuno et al [2], Klotzbuecher et al [3] and Takezawa et al [4]. They have reported an excess loss of 1.0 dB, 2.6 dB and 1.41 dB respectively [2][3][4]. These devices utilized mold inserts which have been fabricated using hot embossing, laser-LIGA and injection molding techniques.…”

Section: Introductionmentioning

confidence: 99%

Variable Coupling Ratio Y-Branch Plastic Optical Fiber (Pof) Coupler With Suspended Waveguide Taper

Ehsan¹,

Shaari²,

Abd-Rahman³

2011

PIER C

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Abstract-A variable coupling ratio Y-Branch plastic optical fiber (POF) coupler based on acrylic has been developed. This device utilized two optical designs: a Y-branch structure with a novel suspended waveguide taper and a simple attenuation technique based on lateral displacement of two fibers for the non-symmetrical coupling ratios. The high index contrast waveguide taper is constructed on the acrylic block itself where the area surrounding the waveguide taper has been designed in such a way that it is surrounded by an open air. A simple attenuation technique based on lateral displacement of two adjoining fibers for each of the two output ports has been proposed and presented for the non-symmetrical coupling ratios. Lateral displacement of the fiber is set from 4.4 mm down to 1.6 mm for output fiber 1 and 0.1 mm to 1.0 mm for output port 2. Numerical analysis has been done on the lateral displacement of the output fibers which shows the device is able to generate non-symmetrical coupling ratios. Device modeling has been performed using non-sequential ray tracing technique on the Y-branch coupler performing as a 3 dB coupler with an excess loss of 1.84 dB and a coupling ratio of 50 : 50. The designed coupling ratios vary from 1% to 45% for port 1 and 99% down to 55% for port 2 whereas in the simulated device, ratios vary from 7.65% to 39.85% for port 1 and from 92.35% down to 60.15% for port 2. Fabrication of the device is done by producing the device structures on an acrylic block using high speed CNC machining tool. The fabricated device has an excess loss of 5.85 dB while the coupling ratios are 56.86% and 43.14% when operating as a 3 dB coupler. In the

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Fabrication of optical 1x2 POF couplers using the laser-LIGA technique

Cited by 31 publications

References 6 publications

Acrylic-based Y-branch plastic optical fiber attenuator

Acrylic-based Y-branch plastic optical fiber attenuator

Plastic Optical Fiber Coupler With High Index Contrast Waveguide Taper

Variable Coupling Ratio Y-Branch Plastic Optical Fiber (Pof) Coupler With Suspended Waveguide Taper

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