Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Daryl Ho"'
Autor:
Rex Xiao Tan, Daryl Ho, Chun Ho Tse, Yung Chuen Tan, Seong Woo Yoo, Swee Chuan Tjin, Morten Ibsen
Publikováno v:
Sensors, Vol 18, Iss 10, p 3285 (2018)
We demonstrate a simple-to-fabricate refractometer based on the inscription of fiber Bragg gratings in a special C-shaped optical fiber. The C-shaped fiber was drawn into shape using a quarter cladding removed preform of a commercial standard single-
Externí odkaz:
https://doaj.org/article/d6b73e1641264563b31add6102dac75a
Autor:
Seongwoo Yoo, Daryl Ho, Raghuraman Sidharthan, Men Seng Yue, Jichao Zang, Chen Jian Chang, David Payne
Publikováno v:
Conference on Lasers and Electro-Optics.
An illuminating fiber is demonstrated by incorporating a reflecting element along a fiber. The element creates a helical path longitudinally to efficiently scatter light. We present the concept and its demonstration in a 200-|rm fiber.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13eac2a122c1d343ebd093f85f07ab51
https://doi.org/10.1364/cleo_at.2020.jw2e.3
https://doi.org/10.1364/cleo_at.2020.jw2e.3
Autor:
Tianye Huang, Xuan Wu, Raghuraman Sidharthan, Huizi Li, Daryl Ho, L. Zhang, Nalla Venkatram, Handong Sun, Seongwoo Yoo
Publikováno v:
Journal of Lightwave Technology. 35:2535-2540
Photodarkening in Yb-doped fibers is known to be dependent of Yb population inversion. In addition to this dependence, we report that pump wavelength selection plays a significant role in photodarkening dynamics. It is found that 976 nm pump source c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db6d71b9ac966d94f9bbfdd50513d8f9
https://doi.org/10.1109/jlt.2017.2690383
https://doi.org/10.1109/jlt.2017.2690383
Autor:
Wenliang Qi, Xinyong Dong, Men Seng Yue, Raghuraman Sidharthan, Seongwoo Yoo, Swee Chuan Tjin, L. Zhang, Lei Zhu, Daryl Ho
Publikováno v:
IEEE Photonics Technology Letters. 28:1521-1524
We report a fabrication route to achieve highly GeO2-doped silica fibers with GeO2 molar concentration as high as 74% using the conventional modified chemical vapor deposition (MCVD) process. The dependence of background loss on fiber frozen-in stres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac6b763be21f60d790c11840edb0bfd7
https://doi.org/10.1109/lpt.2016.2556704
https://doi.org/10.1109/lpt.2016.2556704
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 3, Pp 1-9 (2016)
A microstructured optical fiber (MOF) structure with longitudinal dispersion variation is theoretically investigated for broad, coherent supercontinuum (SC) generation in the infrared (IR) region. The MOF possesses anomalous dispersion at 1550 nm but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6161c932f92b93763882964b11d6635
https://ieeexplore.ieee.org/document/7478621/
https://ieeexplore.ieee.org/document/7478621/
Autor:
Swee Chuan Tjin, Chun Ho Tse, Yung Chuen Tan, Seong Woo Yoo, Daryl Ho, Rex Xiao Tan, Morten Ibsen
Publikováno v:
Sensors, Vol 18, Iss 10, p 3285 (2018)
Sensors
Volume 18
Issue 10
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 10
Sensors (Basel, Switzerland)
We demonstrate a simple-to-fabricate refractometer based on the inscription of fiber Bragg gratings in a special C-shaped optical fiber. The C-shaped fiber was drawn into shape using a quarter cladding removed preform of a commercial standard single-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4d3323322e465245971557d39f7dacb
http://www.mdpi.com/1424-8220/18/10/3285
http://www.mdpi.com/1424-8220/18/10/3285
Autor:
Jae M. O. Daniel, Daryl Ho, Raghuraman Sidharthan, David J. Richardson, Shaif-ul Alam, Seongwoo Yoo, Shaoxiang Chen, Yongmin Jung
Publikováno v:
ECOC
We present a silica-based thulium-doped fibre amplifier in the 1628–1655nm waveband based on Tm/Ge co-doped fibre. Up to 19dB external small signal gain and a noise figure of 4.4dB are achieved at 1655nm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77060b339f19e960253bb46c2f5ad2c5
https://doi.org/10.1109/ecoc.2018.8535134
https://doi.org/10.1109/ecoc.2018.8535134
Autor:
Raghuraman Sidharthan, Daryl Ho, Shaoxiang Chen, Jae M. O. Daniel, Seongwoo Yoo, Yongmin Jung, Shaif-ul Alam, David J. Richardson
Publikováno v:
Optics Express. 27:36699
We fabricate and characterize a germanium/thulium (Ge/Tm) co-doped silica fiber in order to enhance the gain at the short wavelength edge of the thulium emission band (i.e. 1620-1660 nm). The Ge/Tm doped fiber shows an intrinsic blue-shifted absorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a493205d06da492e5260ab79fbaeb0e0
https://doi.org/10.1364/oe.27.036699
https://doi.org/10.1364/oe.27.036699
Autor:
Udi Ben Ami, Daryl Ho, Amiel A. Ishaaya, Yanyan Zhou, Xiaosheng Huang, Junhua Ji, Yehuda Benudiz, Seongwoo Yoo, Sidharthan Raghuraman, Jichao Zang
Publikováno v:
Optics letters. 43(14)
We investigate mode-area scaling by means of supermode operation in an all-solid multicore fiber. To obtain a large-mode area (LMA), we designed and fabricated an active double-clad multicore fiber, where each ytterbium-doped core is 19 μm in diamet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcb1223917b7cf2a7c15829aa0b00592
https://pubmed.ncbi.nlm.nih.gov/30004508
https://pubmed.ncbi.nlm.nih.gov/30004508
Autor:
Johan Nilsson, N. Xia, Daryl Ho, Junhua Ji, Seongwoo Yoo, Raghuraman Sidharthan, Yanyan Zhou, Huaiqin Lin
Publikováno v:
2018 23rd Opto-Electronics and Communications Conference (OECC).
A non-circular core Yb-doped fiber was fabricated in-house. Nearly 200 W output power was obtained with this fiber in a linear cavity. The slope efficiency was 67%. The measured $M_{x,y}^2$ was 1.5 and 3.1, respectively.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f21744d6e067cd90e465f3995905485
https://doi.org/10.1109/oecc.2018.8729931
https://doi.org/10.1109/oecc.2018.8729931