yang sing leong, ahmad ashrif a bakar, mohd saiful dzulkefly zan,norhana arsad, mamun bin ibne reaz, mohd hadri hafiz mokhtar.  (2021).  frequency and phase drift in scanning trajectory for endoscopic imaging system.  - 2021 international conference on electrical engineering and informatics (iceei).  1-4. 

meng chung leong, wen yan lam, mohd saiful dzulkefly zan, norhana arsad, ahmad ashrif a bakar, mohd hadri hafiz mokhtar.  (2020).  contactless vibration sensing and acoustics wave detection based on laser feedback interferometer.  - 2020 ieee 8th international conference on photonics (icp).  91-92. 

mohd saiful dzulkefly zan, mohd hadri hafiz mokhtar, mohamed m. elgaud, ahmad. ashrif a. bakar, norhana arsad and mohd adzir mahdi..  (2020).  pulse coding technique in differential cross-spectrum botdr for improving the brillouin frequency accuracy and spatial resolution.  - 2020 ieee 8th international conference on photonics (icp).  11-12. 

mohd saiful dzulkefly zan, mohamed m elgaud, abdulfatah abushagur ghaith abushagur, abdulwahhab essa hamzah, jessica wei shan teo, wei yi kiew, mohd hadri hafiz mokhtar, norhana arsad and ahmad ashrif a. bakar.  (2020).  spatial resolution enhancement of time domain multiplexing fiber bragg grating sensor by employing differential golay codes.  - 2020 ieee 8th international conference on photonics (icp).  54-55. 

abdulwahhab essa hamzah, mohd saiful dzulkefly zan, mohamed elgaud, mahmoud muhanad fadhel, sara ali alwash, abdulfatah ag abushagur, mohd hadri hafiz mokhtar, nur hidayah azeman, sawal hamid bin mohd ali, ahmad ashrif a bakar.  (2020).  signal generation using system on chip for coded fiber bragg grating sensor.  - 2020 ieee 8th international conference on photonics (icp).  80-81. 

meng sheng leong, amirul ashrf zukhri @ zuhairi, mohd saiful dzulkeffly zan, norhana arsad, ahmad ashrif a bakar, mohd hadri hafiz mokhtar.  (2019).  lissajous scanning microscopy using tailored optical fibre.  - 2019 ieee international conference on biophotonics (biophotonics).  1-2. 

abdulfatah a.g. abushagur ; norhana arsad ; mohd hadri hafiz mokhtar ; ahmad ashrif a bakar.  (2019).  high sensitive microsurgical force sensor using spectral-width of tapered fiber bragg gratings.  - 2019 ieee international conference on biophotonics (biophotonics).  1-2.