Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Nurul Shahrizan Shahabuddin"'
Publikováno v:
International Journal of Students' Research in Technology & Management. 5:42-45
Pulse width modulation (PWM) is used to generate pulses with variable duty cycle rate. The rapid rising and falling edges of PWM signal minimises the switching transition time and the associated switching losses. This paper presents a DC motor speed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e24ce45d97f7e70a4e409cd5a5c71918
https://doi.org/10.18510/ijsrtm.2017.522
https://doi.org/10.18510/ijsrtm.2017.522
Publikováno v:
Journal of Physics: Conference Series. 1174:012009
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffc1f0a58791519e0ab1ae9a82205828
https://doi.org/10.1088/1742-6596/1174/1/012009
https://doi.org/10.1088/1742-6596/1174/1/012009
Dual-cavity dual-output multi-wavelength fiber laser based on nonlinear polarization rotation effect
Publikováno v:
Laser Physics. 22:1601-1605
We demonstrate a multi-wavelength fiber laser based on nonlinear polarization rotation (NPR) in dual-cavity configuration with two output ports. The laser employs a piece of erbium doped fiber (EDF) and semiconductor optical amplifier (SOA) as the ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67edaad549890b18037a0c2ec644df84
https://doi.org/10.1134/s1054660x12100222
https://doi.org/10.1134/s1054660x12100222
Autor:
Sulaiman Wadi Harun, Hamzah Arof, Harith Ahmad, Sin Jin Tan, Nurul Shahrizan Shahabuddin, M. A. Ismail
Publikováno v:
Laser Physics. 22:1240-1243
A passively self-starting mode-locked fiber ring laser is demonstrated using a highly concentrated Erbium doped fiber (EDF) with a saturable absorber. The effect of EDF length on the performance of the laser is investigated. Stable stretched pulses a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930cc386d9f0b63eb9b5f431fb19df79
https://doi.org/10.1134/s1054660x12070134
https://doi.org/10.1134/s1054660x12070134
Autor:
Shyamal Das, Sulaiman Wadi Harun, Mrinmay Pal, Mukul Chandra Paul, N. Saidin, Shyamal Kumar Bhadra, S S A Damanhuri, Nurul Shahrizan Shahabuddin, A Halder, Harith Ahmad
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 1, Pp 14-18 (2012)
A wideband spectrum-sliced amplified spontaneous emission (ASE) source operating in 1900-nm region is demonstrated using a newly developed double-clad ytterbium-sensitized thulium-doped fiber (YTF) and a Sagnac loop mirror. The YTF used was drawn fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de57178a84cd80d7aa57963c9e0a7be8
https://doi.org/10.1109/jphot.2011.2177651
https://doi.org/10.1109/jphot.2011.2177651
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 1, Pp 34-38 (2012)
A new spacing-switchable multiwavelength erbium-doped fiber laser (EDFL) is demonstrated using switchable nonlinear polarization rotation (NPR) and stimulated Brillouin scattering (SBS) effects. The laser employs a 100-m-long photonic crystal fiber i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aad4ad7fb62225e74f12a548641a8eb
https://ieeexplore.ieee.org/document/6096347/
https://ieeexplore.ieee.org/document/6096347/
Autor:
Shyamal Kumar Bhadra, Harith Ahmad, Mukul Chandra Paul, Mrinmay Pal, S S A Damanhuri, M. A. Ismail, Sulaiman Wadi Harun, Nurul Shahrizan Shahabuddin
Publikováno v:
Laser Physics. 22:252-255
Multi-wavelength Ytterbium-doped fiber laser (YDFL) is demonstrated using a longitudinal mode interference assisted by a four-wave mixing (FWM) effect in a ring laser cavity. The gain medium is a 16 m long of the fabricated (Ytterbium-doped fiber) YD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aec340bcec5151596accf0612f91527
https://doi.org/10.1134/s1054660x12010173
https://doi.org/10.1134/s1054660x12010173
Autor:
Mohd Adzir Mahdi, H. Mohamad, Sulaiman Wadi Harun, Zulfadzli Yusoff, Harith Ahmad, Nurul Shahrizan Shahabuddin
Publikováno v:
Laser Physics. 22:212-215
A simple multi-wavelength source is demonstrated based on spectral slicing of supercontinuum (SC) light using a Sagnac loop mirror. A mode locked fiber laser with pulse width of 800 fs is employed to generate the SC in photonic crystal fiber (PCF). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3274127277c4fbaef7ac84b9ad29c2a8
https://doi.org/10.1134/s1054660x11230162
https://doi.org/10.1134/s1054660x11230162
Autor:
Sulaiman Wadi Harun, Marinah Othman, Zulfadzli Yusoff, Nurul Shahrizan Shahabuddin, Harith Ahmad, Sawal Hamid Md Ali
Publikováno v:
Fiber and Integrated Optics. 30:259-264
An efficient multi-wavelength Brillouin erbium fiber laser is demonstrated using an improved configuration with a broadband fiber Bragg grating and a piece of photonic crystal fiber. The laser generates more than 55 lines of optical comb with a line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::057bb226630fc90b1b6e65cc7033bad4
https://doi.org/10.1080/01468030.2011.584954
https://doi.org/10.1080/01468030.2011.584954
Autor:
Hamzah Arof, N. M. Ali, R. Parvizi, Sulaiman Wadi Harun, Nurul Shahrizan Shahabuddin, Harith Ahmad
Publikováno v:
Microwave and Optical Technology Letters. 53:1450-1453
A single wavelength ring Brillouin fiber laser (BFL) is demonstrated using a piece of Photonic crystal fiber (PCF) as a gain medium.The BFL has a peak power of more than 0 dBm, a side mode suppression ratio of more than 26 dB and a BP threshold power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc3a89260126b432d8403bd1661183cf
https://doi.org/10.1002/mop.25984
https://doi.org/10.1002/mop.25984