Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Hee Jeon Kang"'
Autor:
Sang Bae Lee, Young-Geun Han, Chang-Seok Kim, Chi-Hwan Ouh, Chang-Hyun Jung, Jae Seok Park, Myung Yung Jeong, Hee-Jeon Kang
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 16:1031-1038
In the application of optical imaging technologies to the biomedical field, the flexible optical cord is one of the key components used to deliver the reflected optical signal from the internal biological tissue to the biomedical imaging system. Howe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a741d5053ddd833cc81a829df603f7c2
https://doi.org/10.1109/jstqe.2009.2033211
https://doi.org/10.1109/jstqe.2009.2033211
Autor:
Chang Hyun Jeong, Chi Hwan Oh, Hee Jeon Kang, Hung Su Cho, Sang Bae Lee, Young Jun Lee, Young-Geun Han, Gil Hwan Kim
Publikováno v:
IEEE Photonics Technology Letters. 18:1783-1785
Transmission characteristics of fiber Bragg gratings (FBGs) written in holey fibers with different air-hole size are investigated. The cladding mode coupling of FBGs inscribed on holey fibers is remarkably suppressed due to air holes inside of the si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad9ee85237466659dfea7ea455b8fed4
https://doi.org/10.1109/lpt.2006.880762
https://doi.org/10.1109/lpt.2006.880762
Autor:
Suk-Soo Koo, Hee-Jeon Kang, Sang Bae Lee, Chi-Hwan Ouh, Changhyun Jung, Sung-Soon Choi, Hyoung-Soo Cho, Ki-Sun Ryu
Publikováno v:
2009 14th OptoElectronics and Communications Conference.
We investigated the PANDA type polarisation-maintaining optical fibers which were drawn VAD synthesized preforms with stress-applying parts(SAP) by VAD method. The fabricated fiber has 1.3 mm beatlength in the 633 nm region, and −25 dB/km crosstalk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5f19b410a7454961e26ad728fc41c7f
https://doi.org/10.1109/oecc.2009.5219770
https://doi.org/10.1109/oecc.2009.5219770
Autor:
Sang Bae Lee, Chang Hyun Jeong, Young-Geun Han, Chi Hwan Oh, Kwanil Lee, Hee Jeon Kang, Gilhwan Kim
Publikováno v:
Optics express. 15(20)
We discuss bending properties of a long-period fiber grating (LPFG) inscribed into a holey fiber (HF) depending on an axial rotation angle. High quality of the HF-based LPFG with a high extinction ratio of more than 20 dB is achieved. The proposed HF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d694a82a0f39d33b6b7a1d23934fbeb2
https://pubmed.ncbi.nlm.nih.gov/19550554
https://pubmed.ncbi.nlm.nih.gov/19550554
Autor:
Young-Geun Han, Ki-Sun Ryu, Chi-Hwan Ouh, Kyung-Goo Lee, Chang-Hyun Jung, Hee-Jeon Kang, Sang Bae Lee
Publikováno v:
Passive Components and Fiber-based Devices V.
We fabricate versatile holey fibers with 6-hole, 18-holes in order to improve their property in terms of bending insensitivity. The fabricated holey fibers are applied for connection and integration for compact optical devices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::715a97af17666b360163228e17d4e807
https://doi.org/10.1117/12.803409
https://doi.org/10.1117/12.803409
Publikováno v:
OECC/ACOFT 2008 - Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference on Optical Fibre Technology.
We investigate the optical characteristics improvement of holey fibers with the low bending loss fabricated by VAD method. The proposed holey fibers are applied to connection and integration for fabrication of compact optical devices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe063b924e128f09904f869758186a16
https://doi.org/10.1109/oeccacoft.2008.4610351
https://doi.org/10.1109/oeccacoft.2008.4610351
Autor:
Young-Geon Han, Yu Tae Shim, Ki-Sun Ryu, Chi-Hwan Ouh, Hee-Jeon Kang, Changhyun Jung, Sang Bae Lee, Seok Ho Song
Publikováno v:
SPIE Proceedings.
We propose the holey-fiber-based optical cord cables with the excellent optical characteristics in terms of attenuation loss, insertion loss, and bending loss for the application to access network like FTTH. The attenuation loss of the holey-fiber- b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b661fd8cc1085ea15a54b0b6b6cbb2e
https://doi.org/10.1117/12.758476
https://doi.org/10.1117/12.758476
Autor:
Myung Yung Jeong, Hee-Jeon Kang, Chi-Hwan Ouh, Chang-Hyun Jung, Young-Geun Han, Chang-Seok Kim
Publikováno v:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII.
Biomedical optical imaging technologies based on optical fibers have been of great interest because of their superiority over conventional bulk-optic counter part in size and integration. Flexible endoscope is a key component to deliver the reflected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34425280ee36f87e43fa84869491dc73
https://doi.org/10.1117/12.762623
https://doi.org/10.1117/12.762623
Publikováno v:
SPIE Proceedings.
We experimentally demonstrate real practical optical curl patch cords based on holey fibers with bending insensitivity. After making 6-hole holey fibers with the VAD method, the optical curl patch cord with the fabricated holey fiber is developed.©
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a50ef487ebf4e2ec9968957e542a240
https://doi.org/10.1117/12.746463
https://doi.org/10.1117/12.746463
Autor:
Ju Han Lee, Suho Song, Chi Hwan Oh, Chang Hyun Jeong, Hee Jeon Kang, Sang Bae Lee, Young-Geun Han, Kwanil Lee, Gil Hwan Kim
Publikováno v:
Optics letters. 32(15)
We propose and experimentally demonstrate a simple and flexible scheme for the simultaneous measurement of strain and temperature using long-period fiber gratings (LPFGs) based on versatile holey fibers (HFs) with different air-hole sizes. The strong
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ac0189ddfaceb62e92fbe22b3adc2da
https://pubmed.ncbi.nlm.nih.gov/17671598
https://pubmed.ncbi.nlm.nih.gov/17671598