Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Mohammed Zahed Mustafa Khan"'
Autor:
Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Access, Vol 10, Pp 9960-9988 (2022)
The unprecedented increase in internet traffic witnessed in the last few years has pushed the community to explore heterogeneous optical networks, including free-space-optics (FSO) communication, radio-over-fiber (RoF), wireless (WL), and their conve
Externí odkaz:
https://doaj.org/article/e3bdb7becc21416b9fd538055421b12e
Autor:
Ridwanullahi Isa, Jawad Mirza, Salman Ghafoor, Mohammed Zahed Mustafa Khan, Khurram Karim Qureshi
Publikováno v:
Micromachines, Vol 14, Iss 8, p 1636 (2023)
Recent advancements in power electronic switches provide effective control and operational stability of power grid systems. Junction temperature is a crucial parameter of power-switching semiconductor devices, which needs monitoring to facilitate rel
Externí odkaz:
https://doaj.org/article/05eee71b83084835999efdd9e7e64b76
Autor:
Qazi Tareq, Amr Mohamed Ragheb, Maged Abdullah Esmail, Saleh Abdullah Alshebeili, Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 3, Pp 1-9 (2021)
We report on the generation and transmission of 30 GHz millimeter-wave (MMW) beat-tone signals employing external- (EIL) and self-injection-locked (SIL) InAs/InP quantum-dash based dual-wavelength laser (QD-DWL) sources emitting in mid L-band. Later,
Externí odkaz:
https://doaj.org/article/7d3ada7ad97045d3bae154765923af10
Autor:
Mohammed Zahed Mustafa Khan, Emad A. Alkhazraji, Amr Mohamed Ragheb, Maged Abdullah Esmail, Qazi Tareq, Habib Ali Fathallah, Khurram Karim Qureshi, Saleh Alshebeili
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 5, Pp 1-11 (2020)
Injection locked quantum-dash laser diode-based comb source is employed in wavelength-division multiplexed (WDM) optical transmission covering ~1610 nm L-band optical telecommunication window. An aggregate data rate of 192 Gbits/s (3 × 32 GBaud-QPSK
Externí odkaz:
https://doaj.org/article/88ae3f106e33483db2c19e21a9654002
Publikováno v:
IEEE Access, Vol 8, Pp 39046-39055 (2020)
A two-sectioned quantum dash laser structure based on an InAs/InP chirped active region medium is investigated as a monolithic broadband tunable laser. A thorough parametric analysis on the effect of three tuning parameters (viz. injection current, c
Externí odkaz:
https://doaj.org/article/43982d12dfc5447b95152da34bf9703f
Autor:
Md Hosne Mobarok Shamim, Omar Alkhazragi, Tien Khee Ng, Boon S. Ooi, Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Access, Vol 7, Pp 143324-143330 (2019)
We implemented a tunable dual-longitudinal-mode spacing InGaN/GaN green (521-528 nm) laser diode by employing a self-injection locking scheme that is based on an external cavity configuration and utilizing either a high or partial-reflecting mirror.
Externí odkaz:
https://doaj.org/article/6569f7f0d76a4a37acd4b404e03f22e3
Autor:
Md Hosne Mobarok Shamim, Mohamed Adel Shemis, Chao Shen, Hassan M. Oubei, Tien Khee Ng, Boon S. Ooi, Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 4, Pp 1-11 (2018)
We report on self-injection locking in InGaN/GaN (blue/green) and InGaP/AlGaInP (red) visible-light laser diodes. The free-space optical feedback path was accomplished via an external mirror. The effect of injection current, optical power injection r
Externí odkaz:
https://doaj.org/article/46c1b8ea1d544475883dcf0e39221fdb
Autor:
Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 6, Pp 1-10 (2018)
We report a multi-population rate-equation based numerical model for investigating broadband two-section InAs/InP quantum-dash laser. The model incorporates the quantum-wire-like nature of dashes along with the inhomogeneous broadening of the active
Externí odkaz:
https://doaj.org/article/7c29a5d721554d9abe382c62e93b0268
Autor:
Muhammad Talal Ali Khan, Mohamed Adel Shemis, Amr Mohamed Ragheb, Maged Abdullah Esmail, Habib Ali Fathallah, Saleh Alshebeili, Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 2, Pp 1-7 (2017)
An indoor 100 Gb/s free space optical communication link using an injection locked ~1621 nm quantum-dash laser has been experimentally demonstrated. The results are achieved using dual-polarization quadrature phase shift keying (DP-QPSK) and coherent
Externí odkaz:
https://doaj.org/article/0548b2a1d8454a3b94d207caaa088d2c
Autor:
Mohamed Adel Shemis, Amr Mohamed Ragheb, Muhammad Talal Ali Khan, Habib Ali Fathallah, Saleh Alshebeili, Khurram Karim Qureshi, Mohammed Zahed Mustafa Khan
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 5, Pp 1-7 (2017)
We propose and demonstrate a compact, cost-effective, multiwavelength laser source employing self-injection locking scheme on InAs/InP quantum-dash (Qdash) laser diode. The device is shown to exhibit Fabry–Perot modes or subcarriers selectivity of
Externí odkaz:
https://doaj.org/article/727599f75b554781b170c5dcf94b8bb3