Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Song-Liang Chua"'
Autor:
Serene Huiting Lim, Song Liang Chua, Yongmin Jung, David J. Richardson, Huizi Li, Seongwoo Yoo, Chen Jian Chang, Y. M. Seng, K. J. Lim, Di Lin, Raghuraman Sidharthan
High concentration rare earth doped, large mode area (LMA) step-index fibers, which feature a very high cladding absorption per unit length at the pump wavelength, high efficiency, and excellent beam quality, are ideal for high power pulsed fiber las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::469111491b4e862afcc9fa0329fe7c50
https://eprints.soton.ac.uk/442348/
https://eprints.soton.ac.uk/442348/
Autor:
Seongwoo Yoo, K. J. Lim, Serene Huiting Lim, Raghuraman Sidharthan, Y. M. Seng, Yongmin Jung, Dejiao Lin, Huizi Li, Song-Liang Chua, David J. Richardson, Chen Jian Chang
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We report short absorption length LMA Yb-doped fiber with a low NA (0.04) and the amplification of 190ps pulses to $101 \mu J$ pulse energy with 150W average power and $\gt 70$% slope efficiency using only 0.8 m of the fiber. © 2020 The Author(s)
Autor:
Chen Jian Chang, Y. M. Seng, Huizi Li, Seongwoo Yoo, Song-Liang Chua, Vmh Ng, K. J. Lim, K. Pita, Raghuraman Sidharthan
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We present an all solution doping technique to fabricate step index Yb-doped Aluminophosphosilicate fiber, with P2O5 powder used for incorporating Phosphorous. Low loss (8dB/Km), low NA (0.06) photodarkening suppressed step index fiber is reported.
High absorption large-mode area step-index fiber for tandem-pumped high-brightness high-power lasers
Autor:
Raghuraman Sidharthan, Wendy Weiying Lim, Kang-Jie Lim, Joash Yong’En Ye, Chen-Jian Chang, Seongwoo Yoo, Song-Liang Chua, Suting Tan, Huiting Lim, Arumugam Rajendra Prasadh, Yunn-Boon Tan, Samuel Kai-Wen Seah, Chu-Perng Seah
Publikováno v:
Photonics Research. 8:1599
A short absorption length ytterbium (Yb)-doped large-mode area (LMA) fiber is presented as a step forward to mitigate the stern problem of nonlinear scatterings in a tandem pumping scheme adopted for high-power fiber laser. The short absorption lengt
Autor:
Steven G. Johnson, Henry O. Everitt, Marin Soljacic, Dane J. Phillips, John D. Joannopoulos, Song-Liang Chua, Samuel G. Holliday, Jorge Bravo-Abad, Fan Wang, Jeongwon Lee
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 115(26)
Significance Optically pumped far-infrared (OPFIR) lasers are one of the most powerful continuous-wave terahertz sources. However, such lasers have long been thought to have intrinsically low efficiency and large sizes. Moreover, all previous theoret
Publikováno v:
2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR).
With the rapid progress of fiber lasers, there is increasing demand to develop optical waveguides providing large fundamental mode (FM) effective areas. Several of these fibers possess structural features, beyond the traditional core and cladding of
Autor:
Song Liang Chua, K. J. Lim, Junhua Ji, Huizi Li, Serene Huiting Lim, Daryl Ho, Raghuraman Sidharthan, Jian Wei Lua, Seongwoo Yoo, Y. M. Seng, Yanyan Zhou, Chun Ho Tse
Publikováno v:
Optics Letters. 43:5897
We report an all-solid large-mode-area (LMA) step-index fiber offering high absorption and low core numerical aperture (NA) by introducing a highly ytterbium-doped P:Al core and germanium-doped cladding. The fiber provides core absorption of ∼1200
Autor:
Marin Soljacic, John D. Joannopoulos, Steven G. Johnson, Ofer Shapira, Song Liang Chua, Jeongwon Lee, Xiangdong Liang, Alejandro W. Rodriguez, Bo Zhen
Publikováno v:
Proceedings of the National Academy of Sciences. 110:13711-13716
The nature of light interaction with matter can be dramatically altered in optical cavities, often inducing nonclassical behavior. In solid-state systems, excitons need to be spatially incorporated within nanostructured cavities to achieve such behav
Autor:
John D. Joannopoulos, Bo Zhen, Jeongwon Lee, Marin Soljacic, Steven G. Johnson, Chia Wei Hsu, Song-Liang Chua
Publikováno v:
Nature. 499:188-191
The ability to confine light is important both scientifically and technologically. Many light confinement methods exist, but they all achieve confinement with materials or systems that forbid outgoing waves. These systems can be implemented by metall
Publikováno v:
Advanced Solid State Lasers.
We present a Yb-doped fiber laser with 403W output power operating at 1018nm. The laser had an optical efficiency of 66% and M2=1.51. Laser displayed excellent spectral purity with no sign of ASE.