• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.4
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• pp.867-871
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• 2012

In this paper, we proposed and demonstrated a low loss $1{\times}4$ type plastic optical fiber(POF) coupler incorporating a polymer tapering waveguide region. To avoid leakage loss at the interfaces between the POF and the polymer waveguide, we employed two POF transition regions, in which the cross section of the POF is adiabatically converted from a circular to a rectangular shape without change of its cross-section area. The device was fabricated based on a injection mold made of a silicon rubber. The fabricated POF coupler showed 1.33 dB of excess loss and 2.2 dB of flatness.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.1
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• pp.11-16
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• 2014

In this paper, we proposed and demonstrated $1{\times}7$ type plastic optical fiber(POF) coupler incorporating a tapered acrylic cylinder which works optical combining and dividing region. A fabricated POF coupler showd 2.27~3.31 dB of insertion loss for optical combining and 8.67~11.27dB of insertion loss for optical spitting.

• Korean Journal of Optics and Photonics
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• v.24 no.1
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• pp.17-22
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• 2013

High performance plastic optical fiber (POF) $N{\times}N$ star couplers are implemented based on fusing and combining technology. A set of cladding-removed POFs are fused into a solid body by heating and pressing them together to form the transition region between the input and output sides. The operation principle of the proposed star coupler is explained based on ray optics. To demonstrate the performance of the device, $2{\times}2$, $4{\times}4$ and $6{\times}6$ type POF couplers were fabricated and characterized. Performances of the POF star couplers were evaluated in terms of the flatness of the coupling ratios and excess losses.

• Proceedings of the Optical Society of Korea Conference
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• 2004.02a
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• pp.132-133
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• 2004

• Proceedings of the Optical Society of Korea Conference
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• 2006.07a
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• pp.361-362
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• 2006

• Proceedings of the Optical Society of Korea Conference
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• 2002.11a
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• pp.44-45
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• 2002

• Proceedings of the Optical Society of Korea Conference
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• 2002.07a
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• pp.48-49
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• 2002

현재 세계의 통신업계들은 인터넷, 멀티미디어 서비스 등의 발전에 따라 폭발적인 전송 속도의 증가를 예측하고 있다. 대용량의 정보를 초고속으로 전달하기 위한 방법으로 각광 받고 있는 광통신은 사무실의 네트웍, 가정의 전자용품, 항공기내 정보시스템 구축, 인터넷 화상 통신 등에 이용되고 있다. 최근에는 플라스틱 광섬유(POF; plastic optical fiber)에 관한 연구가 활발히 이루어지고 있다. 기존의 구리 전선이 가지는 단점인 전자기적 간섭과 무거운 중량을 극복한 것이 유리 광섬유이다. (중략)