Dr. Keun Byoung Yoon Profile

Dr. Keun Byoung Yoon

ETRI at Kyungpook National Univ

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Author

Publications (6)

Proceedings Article | 4 October 2006 Paper

Optical transmitter module using polymer waveguide with fully integrated reflector mirrors

In-Kui Cho, Seoung-Ho Ahn, Woo-Jin Lee, Sang-Pil Han, Byeong-Soo Bae, Keun Byoung Yoon, Myung-Yung Jeong, Hyo Hoon Park

Proceedings Volume 6351, 635116 (2006) https://doi.org/10.1117/12.688493

KEYWORDS: Waveguides, Reflectors, Mirrors, Transmitters, Optics manufacturing, Surface finishing, Ultraviolet radiation, Vertical cavity surface emitting lasers, Polishing, Polymer multimode waveguides

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The cost-effective and repeatable technology for integration of polymer multimode waveguide and out-of-plane 45° reflector mirrors is developed. This method is cost-effective, repeatable, robust, and fully compatible with the standard manufacturing processes for a 90° optical bending structure. The basic concept of the technology for integration of waveguide and out-of-plane 45° reflector mirrors is as follows; 1) The positively patterned master in order to mold waveguides is manufactured by using photolithography and Deep RIE (Reactive Ion Etching). And the master is polished to obtain 45°-inclined plane. 2) Both sides of the positively patterned master are divided into three parts by using a sawing machine. One is a center master (main-master) with a positively patterned waveguide and the others are side masters (sub-master) without a pattered waveguide. The main master and sub-master turned over get back together again. 3) The negatively patterned PDMS master to be able to mold simultaneously both waveguide and out-of-plane 45° reflector mirrors is manufactured through pouring PDMS gel into master and thermally curing the PDMS master. 4) The multimode tapered waveguides with out-of-plane 45° reflector mirrors are simultaneously embossed by using PDMS master. The UV (Ultraviolet) curable material is organic-inorganic hybrid material (HYBRIMER, core index: 1.51, clad index: 1.48). The transmitter module is constructed on a MOB. The MOB was employed for several purposes; to align optical module passively, to use as heat sinker and also to support the boards. On this MOB, 1×4 arrays of vertical-cavity surface-emitting laser (VCSEL) and Tapered Waveguide with 45° reflector mirrors are integrated. The height and width of waveguide's core are 100 μm, 60 μm respectively and the pitch is 250 μm. The transmission access lines in transmitter are designed considering differential impedance matching for high-speed operation. We measured the insertion loss of this transmitter module using a 62.5 μm graded index fiber. The average insertion loss value is roughly about 7dB.

SPIE Journal Paper | 1 August 2006

Demonstration of high-speed transmission through waveguide-embedded optical backplane

Seung-Ho Ahn, In-Kui Cho, Sang-Pil Han, Keun Byoung Yoon, Man-Seop Lee

OE, Vol. 45, Issue 08, 085401, (August 2006) https://doi.org/10.1117/12.10.1117/1.2338557

KEYWORDS: Waveguides, Transmitters, Receivers, Polymers, Polymer multimode waveguides, Vertical cavity surface emitting lasers, Optical interconnects, Eye, Packaging, Telecommunications

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Proceedings Article | 17 November 2005 Paper

Transmission characteristics of waveguide-embedded optical backplane system

Seung-Ho Ahn, In-Kui Cho, Woo-Jin Lee, Sang-Pil Han, Keun-Byoung Yoon, Myung-Yung Jeong, Man-Seop Lee

Proceedings Volume 5999, 59990X (2005) https://doi.org/10.1117/12.630313

KEYWORDS: Waveguides, Receivers, Transmitters, Polymer multimode waveguides, Polymers, Vertical cavity surface emitting lasers, Eye, Telecommunications, Optics manufacturing, Optical interconnects

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Proceedings Article | 25 October 2005 Paper

Fully optical backplane system using novel optical plug and slot

In-Kui Cho, Seung-Ho Ahn, Woo-Jin Lee, Sang-Pil Han, Jin-Tae Kim, Chun-Ki Choi, Kyung-Up Shin, Keun Byoung Yoon, Myung-Yung Jeong, Hyo Hoon Park

Proceedings Volume 6014, 60140I (2005) https://doi.org/10.1117/12.630311

KEYWORDS: Waveguides, Polymer multimode waveguides, Polymers, Transmitters, Receivers, Optical printed circuit boards, Metals, Active optics, Data transmission, Optical alignment

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Proceedings Article | 22 October 2004 Paper

Board-to-board optical interconnection using novel optical plug and slot

In Cho, Keun Byoung Yoon, Seong Ahn, Jin Tae Kim, Woo Jin Lee, Kyoung Up Shin, Young Un Heo, Hyo Hoon Park

Proceedings Volume 5524, (2004) https://doi.org/10.1117/12.558644

KEYWORDS: Waveguides, Polymer multimode waveguides, Polymers, Transmitters, Receivers, Optical printed circuit boards, Metals, Optical interconnects, Vertical cavity surface emitting lasers, Data transmission

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Proceedings Article | 14 October 2004 Paper

Optical PCB using waveguide-embedded backplane

Keun Byoung Yoon, In-Kui Cho, Seung-Ho Ahn, Jin Tae Kim

Proceedings Volume 5523, (2004) https://doi.org/10.1117/12.558639

KEYWORDS: Waveguides, Polymer multimode waveguides, Polymers, Optical printed circuit boards, Transmitters, Receivers, Silicon, Metals, Vertical cavity surface emitting lasers, Integrated optics

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Showing 5 of 6 publications

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