Zobrazeno 1 - 10
of 75
pro vyhledávání: '"O-Kyun Kwon"'
Autor:
Shinmo An, O-Kyun Kwon
Publikováno v:
Optics express. 27(26)
We demonstrate an InP deep-ridge type multi-quantum-wells (MQWs) waveguide-based active polarization control scheme by using two positive-intrinsic-negative diode phase shifters. The polarization state of horizontal/vertical linearly polarized input
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bca665f9f2c5fd0e7836ba4cb0c64f0
https://pubmed.ncbi.nlm.nih.gov/31878555
https://pubmed.ncbi.nlm.nih.gov/31878555
Publikováno v:
Medicine
We evaluated the relationships among functional imaging modality such as PET-CT and DW-MRI and lung adenocarcinoma pathologic heterogeneity, extent of invasion depth, and tumor cellularity as a marker of tumor microenvironment. In total, 74 lung aden
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1687b10216c8424dad69214e2b08ca3
http://europepmc.org/articles/PMC6709045
http://europepmc.org/articles/PMC6709045
Publikováno v:
Electronics Letters. 53:251-253
A pH-sensitive sensor with a differential mode was developed to detect surface charges accumulated on the ion-sensitive layer. The device accurately monitors the relative pH value using the modified instrumentation amplifier with the DC electrode-off
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f088c08f2e9bb93dd9862494c1dde654
https://doi.org/10.1049/el.2016.3330
https://doi.org/10.1049/el.2016.3330
Publikováno v:
2018 23rd Opto-Electronics and Communications Conference (OECC).
We have developed a 25 Gbps electroabsorption modulated (EAM) distributed feedback laser diode (DFB LD) operating in the C-band for 5G digital fronthaul optical networks. The structural parameters such as the epitaxial layer of the EAM and grating st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::248179e1e25b17abbfe911223a82981e
https://doi.org/10.1109/oecc.2018.8730138
https://doi.org/10.1109/oecc.2018.8730138
Autor:
O-Kyun Kwon, Shinmo An
Publikováno v:
OFC
we report on an integrated InP based polarization rotator scheme using the plasmonic effect. It operates as a half-wave retarder in ridge waveguide structure. The rotation angle of the eigenmode axes of the half-wave retarder waveguide is determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::896cb48646309edda85f48bcf49be5b5
https://pubmed.ncbi.nlm.nih.gov/29402005
https://pubmed.ncbi.nlm.nih.gov/29402005
Autor:
Hak-Kyu Lee, Ki Soo Kim, Jong Sool Jeong, O-Kyun Kwon, Yun Chur Chung, Byung-Seok Choi, Hyun Soo Kim, Mi-Ran Park, Ki-Hong Yoon
Publikováno v:
IEEE Journal of Quantum Electronics. 51:1-15
We evaluate the chirp reduction achievable using the detuned loading effect in the polymer-based tunable external-cavity laser (ECL) capable of operating at 10 Gb/s. In particular, we estimate the achievable linewidth enhancement factor (LEF) of this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e5a201469054e8140848439ff42e15f
https://doi.org/10.1109/jqe.2014.2375357
https://doi.org/10.1109/jqe.2014.2375357
Publikováno v:
IEEE Photonics Technology Letters. 25:2289-2292
We report a new design for a superluminescent diode (SLD) that can provide a nearly circular output beam shape and a high output power in a tunable external cavity laser (T-ECL). The proposed SLD consists of an active region and a spot size converter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::977d8562b3d5f9d4b02bfa18d2ebad06
https://doi.org/10.1109/lpt.2013.2285255
https://doi.org/10.1109/lpt.2013.2285255
Autor:
Young-Ouk Noh, Ki-Hong Yoon, Jun-Kyu Seo, Dae Kon Oh, O-Kyun Kwon, Ki Soo Kim, Jongbae Kim, Hyung-Jong Lee, Su Hwan Oh
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 17:1534-1541
We report a tunable external cavity laser (T-ECL) using a superluminescent diode (SLD) and a polymer Bragg reflector with 0.8-nm mode spacing 25 channels operating in the direct modulation of 2.5 Gb/s for a low-cost source of a wavelength division mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::314cea321c4fee5f9cc503ce2004a06b
https://doi.org/10.1109/jstqe.2011.2130515
https://doi.org/10.1109/jstqe.2011.2130515
Autor:
Kisoo Kim, O-Kyun Kwon, Young-Tak Han, Byung-Seok Choi, Dong Min Kang, Su Hwan Oh, Hak Kyu Lee, Ki-Hong Yoon
Publikováno v:
IEEE Photonics Technology Letters. 26:47-49
A compact-size and low-cost tunable external cavity laser transmitter optical sub-assembly with butt-coupled superluminescent diode and polymer Bragg reflector (PBR) is described. The output wavelength of the laser is widely tuned over 16 nm by a hea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f31742fcd903a14f4133bfb7f40e1c2c
https://doi.org/10.1109/lpt.2013.2288986
https://doi.org/10.1109/lpt.2013.2288986
Autor:
O-Kyun Kwon, Su Hwan Oh, Byung-Seok Choi, Kisoo Kim, Hyung-Moo Park, Ki-Hong Yoon, Jae-Sik Sim, Hyun-Soo Kim
Publikováno v:
IEEE Photonics Technology Letters. 24:1481-1483
We demonstrate a 10-Gb/s tunable external cavity laser with a polymer Bragg reflector and a highly integrated semiconductor gain chip including an asymmetric ring resonator reflector. The output power of the tunable laser is increased by adjusting th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02efd79fcb098b41dbea34fc2db2fda9
https://doi.org/10.1109/lpt.2012.2205564
https://doi.org/10.1109/lpt.2012.2205564