Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Betty Meng Zhang"'
Publikováno v:
Journal of Lightwave Technology. 36:5521-5527
We use numerical simulations to investigate the effects of photodarkening (PD) on pulse compression and coherent combination following chirped-pulse amplification in Yb-doped fiber amplifiers. Even though we increase the pump power to keep the pulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12e304c1a23a34fe973c90a3a4030ef6
https://doi.org/10.1109/jlt.2018.2874086
https://doi.org/10.1109/jlt.2018.2874086
Publikováno v:
Optics Communications. 403:325-329
Pulsed pump is an effective method to suppress the amplified spontaneous emission (ASE) between pulses of high power pulsed fiber lasers. For the pulsed pump, the most important factors need to be determined during amplifier design are the pump power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d1a0b3662f3f825a34209003836a0fe
https://doi.org/10.1016/j.optcom.2017.07.068
https://doi.org/10.1016/j.optcom.2017.07.068
Publikováno v:
IEEE Photonics Technology Letters. 28:2842-2845
High efficiency, good robustness, and low amplified spontaneous emission are among the key factors of the high power ytterbium-doped pulsed fiber laser. In this letter, we propose an optimized pulsed pumping design for the nanosecond ytterbium-doped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f71269d3a4b55a8b609dbae2398e175
https://doi.org/10.1109/lpt.2016.2623538
https://doi.org/10.1109/lpt.2016.2623538
Publikováno v:
IEEE Photonics Technology Letters. 28:2701-2704
Blackening aluminum alloy with alumina surface now can be achieved in a cost-effective way with a nanosecond pulse fiber laser at 1064-nm wavelength, putting aside the traditional bulky, expensive femtosecond or picosecond pulse lasers. The surface b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::828745e10852a471da0ac135abc7dd51
https://doi.org/10.1109/lpt.2016.2615190
https://doi.org/10.1109/lpt.2016.2615190
Autor:
Perry Ping Shum, Qi Jie Wang, Xiaohui Li, Xueping Cheng, Betty Meng Zhang, Shaoxiang Chen, Meng Liu
Publikováno v:
Procedia Engineering. 140:123-126
For a high power 1064 nm nanosecond MOPA pulse fibre laser, the seeding pulse shape is distorted after amplified by pre-amplifier and power-amplifier stages under the effect of gain saturation. As the pulse shape is crucial for some industrial applic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a620e7b9453289eadc01462c5a1c38d1
https://doi.org/10.1016/j.proeng.2015.08.1123
https://doi.org/10.1016/j.proeng.2015.08.1123
Publikováno v:
Conference on Lasers and Electro-Optics.
We use numerical simulations to investigate the effects of photodarkening (PD) on single-channel and coherently combined Yb-doped Fiber CPA Systems. The system design optimizing for the lossy fiber caused by PD at ending of life shows improvements on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::685bc1157835a6d8b8fbb39a4297b080
https://doi.org/10.1364/cleo_at.2018.jth2a.110
https://doi.org/10.1364/cleo_at.2018.jth2a.110
Autor:
Betty Meng, Zhang, Yujun, Feng, Di, Lin, Jonathan H V, Price, Johan, Nilsson, Shaiful, Alam, Perry Ping, Shum, David Neil, Payne, David J, Richardson
Publikováno v:
Optics express. 25(13)
High precision surface processing has an unmet demand for picosecond pulses with arbitrary temporal profiles in radial polarization states and at high average powers. Here, simultaneous spatial and arbitrary temporal shaping of chirped 10 - 100 picos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3375bff8628cc9099cb83a4c7e2b7c4d
https://pubmed.ncbi.nlm.nih.gov/28788966
https://pubmed.ncbi.nlm.nih.gov/28788966
Autor:
David N. Payne, Shaif-ul Alam, David J. Richardson, Perry Ping Shum, Johan Nilsson, Betty Meng Zhang, Yujun Feng, Jonathan H. V. Price, Di Lin
Publikováno v:
2017 16th International Conference on Optical Communications and Networks (ICOCN).
We demonstrate simultaneous spatial and arbitrary temporal pulse-shaping with a picosecond Yb-doped fiber laser system generating an output power > 10 W. By using a self-developed feed-back control algorithm on a single polarization optical pulse sha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e81d2c867b7f9c86c35b1bd939776613
https://doi.org/10.1109/icocn.2017.8121434
https://doi.org/10.1109/icocn.2017.8121434
We investigate errors in small-signal absorption spectra that result from re-emission in single-mode fibers with overlapping absorption and emission spectra. Experiments on Er-doped fibers and simulations of Er- and Yb-doped fibers show that the re-e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc5edd4cee8439cd8c7ed79d72a7e253
https://eprints.soton.ac.uk/410638/
https://eprints.soton.ac.uk/410638/
Autor:
Xueping Cheng, Meng Lei, Betty Meng Zhang, Zhu Jiangjie, Meng Liu, Huanxian Zhou, Perry Shum Ping
Publikováno v:
Scopus-Elsevier
A master oscillator power amplifier (MOPA) configuration ytterbium-doped pulsed fiber laser (YDPFL) with directly modulated seed has been demonstrated and 160 W output power is obtained for the laser with adjustable pulse durations in ns range. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::968ab83d02a4f6b8c39b4076dd01b91f
https://doi.org/10.1109/cleopr.2017.8118607
https://doi.org/10.1109/cleopr.2017.8118607