Items where Author is "Ahmad Anas, Siti Barirah "

Maad, Hikmat and Mohd Yusoff, Norita and Ahmad Anas, Siti Barirah and Mokhtar, Makhfudzah and Zan, Zuraidah and Mahdi, Mohd Adzir (2024) Generation and evolution of stable noise-like pulse with varying dispersion in figure-of-eight erbium-doped fiber laser. Optical Fiber Technology, 84. art. no. 103767. pp. 1-9. ISSN 1068-5200

Alnassar, Ghusoon and Mohammed, Husam Abduldaem and Taiwo, Ambali and Ahmad Anas, Siti Barirah and Mokhtar, Makhfudzah (2022) Deployment of multiservice code in FSO-based hybrid subcarrier system. Journal of Optical Communications. pp. 1-4. ISSN 2191-6322

Riza, Muhammad Arif and Go, Yun Ii and Harun, Sulaiman Wadi and Ahmad Anas, Siti Barirah (2022) Effect of additive concentration on crystalline surface of ZnO nanostructures morphology for enhanced humidity sensing. Sensors International, 4 (2023). art. no. 100211. pp. 1-12. ISSN 2666-3511

Mahmood, Rawa Muayad and Yaakob, Syamsuri and Ahmad, Faisul Arif and Ahmad Anas, Siti Barirah and Muhammad Zamzuri, Abdul Kadir and Che Beson, Mohd Rashidi (2022) Effect of phase noise on the optical millimeter-wave signal in the DWDM-RoF system. Electronics, 11 (3). art. no. 489. pp. 1-14. ISSN 2079-9292

Riza, Muhammad Arif and Yun, Ii Go and Maier, Robert R.J. and Harun, Sulaiman Wadi and Ahmad Anas, Siti Barirah (2022) Development of FBG humidity sensor via controlled annealing temperature of additive enhanced ZnO nanostructure coating. Optical Fiber Technology, 68. art. no. 102802. pp. 1-9. ISSN 1068-5200

Riza, Muhammad Arif and Yun, Ii Go and Maier, Robert R. J. and Harun, Sulaiman Wadi and Ahmad Anas, Siti Barirah (2021) Optical properties enhancement with multilayer coating technique of additive-enhanced zinc oxide nanostructure for fiber Bragg grating humidity sensor. Wiley, 64 (1). 184 - 189. ISSN 0895-2477; ESSN: 1098-2760

Yaakob, Syamsuri and Mahmood, Rawa Muayad and Zan, Zuraidah and Mohd Rashidi, Che Beson and Mahmud, Azwan and Ahmad Anas, Siti Barirah (2021) Modulation index and phase imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in optical millimeter-wave system. Photonics, 8 (5). art. no. 153. pp. 1-12. ISSN 2304-6732

Riza, Muhammad Arif and Go, Yun Ii and Maier, Robert R. J. and Harun, Sulaiman Wadi and Ahmad Anas, Siti Barirah (2021) Characterization of hysteresis free, low-temperature hydrothermally synthesized zinc oxide for enhanced humidity sensing. Sensors International, 2. art. no. 100106. pp. 1-8. ISSN 2666-3511

Riza, Muhammad Arif and Go, Yun Ii and Maier, Robert R. J. and Harun, Sulaiman Wadi and Ahmad Anas, Siti Barirah (2021) Enhanced fiber mounting and etching technique for optimized optical power transmission at critical cladding thickness for fiber-sensing application. Laser Physics, 31 (12). pp. 1-12. ISSN 1054-660X; ESSN: 1555-6611

Riza, Muhammad Arif and Go, Yun Ii and Maier, Robert R. J. and Harun, Sulaiman Wadi and Ahmad Anas, Siti Barirah (2021) Hygroscopicity enhancement of low temperature hydrothermally synthesized zinc oxide nanostructure with heterocyclic organic compound for humidity sensitization. Sensors and Actuators B: Chemical, 345. pp. 1-12. ISSN 0925-4005

Mohamad Nor, Mohd Hafiz and Kanesan, Thavamaran and Maskuriy, Farha and Yusuf, A. and Fatah, F. A. and Ahmad Anas, Siti Barirah (2020) Experimental demonstration of all-optical PolMux RoF system with multiservice transmission. Optics Communications, 475. art. no. 126293. pp. 1-6. ISSN 0030-4018

Mohammed, Husam Abduldaem and Abdul Rashid, Suraya and Abu Bakar, Muhammad Hafiz and Ahmad Anas, Siti Barirah and Mahdi, Mohd Adzir and Yaacob, Mohd Hanif (2019) Fabrication and characterizations of a novel etched-tapered single mode optical fiber ammonia sensors integrating PANI/GNF nanocomposite. Sensors and Actuators B: Chemical, 287. pp. 71-77. ISSN 0925-4005; ESSN:

Mohammed, Husam Abduldaem and Abdul Rahman, Norizah and Ahmad, Muhammad Zamharir and Abu Bakar, Muhammad Hafiz and Ahmad Anas, Siti Barirah and Mahdi, Mohd Adzir and Yaacob, Mohd Hanif (2018) Sensing performance of modified single mode optical fiber coated with nanomaterials based ammonia sensors operated in the C-band. IEEE Access, 7 (1). pp. 5467-5476. ISSN 2169-3536

Ali, Azarnia and Sahbudin, Ratna Kalos Zakiah and Ahmad Anas, Siti Barirah (2017) Performance evaluation of an efficient RZ-MQAM modulation scheme in all-optical OFDM transmission systems. Journal of Fundamental and Applied Sciences, 9 (3S). 484 - 492. ISSN 1112-9867

Moghaddasi, Majid and Seyedzadeh, Saleh and Glesk, Ivan and Lakshminarayana, Gandham and Ahmad Anas, Siti Barirah (2017) DW-ZCC code based on SAC-OCDMA deploying multi-wavelength laser source for wireless optical networks. Optical and Quantum Electronics, 49 (12). art. no. 393. pp. 1-14. ISSN Springer

Ahmad Anas, Siti Barirah and Seyedzadeh, Saleh and Mokhtar, Makhfudzah and Sahbudin, Ratna Kalos Zakiah (2016) Variable weight Khazani-Syed code using hybrid fixed-dynamic technique for optical code division multiple access system. Optical Engineering, 55 (10). pp. 1-11. ISSN 0091-3286; ESSN: 1560-2303

Moghaddasi, Majid and Mamdoohi, Ghazaleh and Muhammad Noor, Ahmad Shukri and Hitam, Salasiah and Ahmad Anas, Siti Barirah (2016) Evaluation of optical code division multiple access (OCDMA) encoding techniques for free space optics (FSO). Lasers in Engineering, 33 (4-6). pp. 229-245. ISSN 0898-1507; ESSN: 1029-029X

Moghaddasi, Majid and Mamdoohi, Ghazaleh and Muhammad Noor, Ahmad Shukri and Mahdi, Mohd Adzir and Ahmad Anas, Siti Barirah (2015) Development of SAC–OCDMA in FSO with multi-wavelength laser source. Optics Communications, 356. pp. 282-289. ISSN 0030-4018; ESSN: 1873-0310

Sahbudin, Ratna Kalos Zakiah and Tan, Terry Kwang Chun and Ahmad Anas, Siti Barirah and Hitam, Salasiah and Mokhtar, Makhfudzah (2015) SAC-OCDMA over hybrid FTTx free space optical communication networks. Journal of Telecommunications and Information Technology, 2 (2). pp. 52-58. ISSN 1509-4553

Hitam, Salasiah and Goh, Chong Loong and Sahbudin, Ratna Kalos Zakiah and Mokhtar, Makhfudzah and Ahmad Anas, Siti Barirah and Mahdi, Mohd Adzir (2014) Performance analysis in multi-channels ellipsoid structure wireless optical communications. Optik, 125 (24). pp. 7182-7185. ISSN 0030-4026; ESSN: 1618-1336

Seyedzadeh, Saleh and Mahdiraji, Ghafour Amouzad and Sahbudin, Ratna Kalos Zakiah and Abas, Ahmad Fauzi and Ahmad Anas, Siti Barirah (2014) Experimental demonstration of variable weight SAC-OCDMA system for QoS differentiation. Optical Fiber Technology, 20 (5). pp. 495-500. ISSN 1068-5200; ESSN: 1095-9912

Kakaee, Majid H. and Seyedzadeh, Saleh and Fadhil, Hilal Adnan and Ahmad Anas, Siti Barirah and Mokhtar, Makhfudzah (2014) Development of Multi-Service (MS) for SAC-OCDMA systems. Optics & Laser Technology, 60. pp. 49-55. ISSN 0030-3992; ESSN: 1879-2545

Moghaddasi, Majid and Seyedzadeh, Saleh and Shokri, Shervin and Hassan, Mazen Radhe and Shamel, Kaveh and Ahmad Anas, Siti Barirah (2014) Investigation of Stimulated Brillouin Scattering effect on different modulation formats. Research Journal of Applied Sciences, Engineering and Technology, 8 (4). pp. 481-487. ISSN 2040-7459; ESSN: 2040-7467

Md Ali, M. I. and Ibrahim, Siti Azlida and Abu Bakar, Muhammad Hafiz and Muhammad Noor, Ahmad Shukri and Ahmad Anas, Siti Barirah and Abdul Kadir, Muhammad Zamzuri and Mahdi, Mohd Adzir (2014) Tapered-EDF-based Mach-Zehnder interferometer for dual-wavelength fiber laser. IEEE Photonics Journal, 6 (5). art. no. 5501209 . pp. 1-10. ISSN 1943-0647; ESSN: 1943-0655

Kharazi, Seyed Mohammad Saleh Seyedzadeh and Sahbudin, Ratna Kalos Zakiah and Abas, Ahmad Fauzi and Ahmad Anas, Siti Barirah (2013) Fiber non-linear effects in multiple-wavelengths optical CDMA systems. IETE Technical Review, 30 (2). pp. 149-156. ISSN 0256-4602; ESSN: 0974-5971

Sahbudin, Ratna Kalos Zakiah and Kamarulzaman, Mazlin and Hitam, Salasiah and Mokhtar, Makhfudzah and Ahmad Anas, Siti Barirah (2013) Performance of SAC OCDMA-FSO communication systems. Optik, 124 (17). pp. 2868-2870. ISSN 0030-4026; ESSN: 1618-1336

Hitam, Salasiah and Suhaimi, Siti Norziela and Muhammad Noor, Ahmad Shukri and Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah (2012) Performance analysis on 16-channels wavelength division multiplexing in free space optical transmission under tropical regions environment. Journal of Computer Science, 8 (1). pp. 145-148. ISSN 1549-3636; ESSN: 1552-6607

Shargh, R. Sonee and Al-Mansoori, M.H. and Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah and Zamzuri, A.K. and Mahdi, Mohd Adzir (2011) Improvement of comb lines quality employing double-pass architecture in Brillouin-Raman laser. Laser Physics Letters, 8 (11). pp. 823-827. ISSN 1612-2011; ESSN:1612-202X

Shargh, R. Sonee and Al-Mansoori, M.H. and Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah and Mahdi, Mohd Adzir (2011) OSNR enhancement utilizing large effective area fiber in a multiwavelength Brillouin-Raman fiber laser. Laser Physics Letters, 8 (2). pp. 139-143. ISSN 1612-2011

Sahbudin, Ratna Kalos Zakiah and Abdullah, M.K. and Mokhtar, Makhfudzah and Hitam, Salasiah and Ahmad Anas, Siti Barirah (2011) Design and cost performance of decoding technique for hybrid subcarrier spectral amplitude coding-optical code division multiple access system. Journal of Computer Science, 7 (10). pp. 1525-1531. ISSN 1549-3636

Hitam, Salasiah and Tan, Kah Lin and Sahbudin, Ratna Kalos Zakiah and Mokhtar, Makhfudzah and Ahmad Anas, Siti Barirah and Sali, Aduwati (2011) Digital visual schedule and training system for centre of autistic children. Journal of Applied Sciences, 11 (5). pp. 788-796. ISSN 1812-5654; ESSN: 1812-5662

Sahbudin, Ratna Kalos Zakiah and Abdullah, M. K. and Mokhtar, Makhfudzah and Ahmad Anas, Siti Barirah and Hitam, Salasiah (2011) Performance of subcarrier-OCDMA system with complementary subtraction detection technique. World Academy of Science, Engineering and Technology, 75 (-). pp. 1422-1427. ISSN 2070-3724

Wong, Wen Xing and Ahmad Anas, Siti Barirah and Hamat@Mustafa, Fatin Hamimi and Hitam, Salasiah and Muhammad Noor, Ahmad Shukri and Kharazi, Seyed Mohammad Saleh Seyedzadeh (2011) Triple-play to the last mile over free space optics. Jurnal Teknologi, 55 (5). pp. 233-240. ISSN 0127-9696; ESSN: 2180-3722

Ahmad Anas, Siti Barirah and Abdullah, Mohamad Khazani and Mokhtar, M. and Syed Junid, Syed Alwee Aljunid and Walker, S. D. (2009) Optical domain service differentiation using spectral-amplitude-coding. Optical Fiber Technology, 15 (1). pp. 26-32. ISSN 1068-5200; ESSN: 1095-9912

Al-Galbi, Wamidh J. M. and Mokhtar, Makhfudzah and Abas, Ahmad Fauzi and Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah (2009) Solving the near-far problem in dynamic frequency hopping-optical code division multiple access using power control. Journal of Computer Science, 5 (6). pp. 413-418. ISSN 1549-3636; ESSN: 1552-6607

Ahmad Anas, Siti Barirah and Abdullah, Mohamad Khazani and Mokhtar, Makhfudzah and Walker, Stuart D. (2008) Multiple access interference elimination with enhanced chromatic dispersion tolerance in SAC OCDMA. IEICE Electronics Express, 5 (16). pp. 617-623. ISSN 1349-2543

Syed Junid, Syed Alwee Aljunid and Zan, Zuraidah and Ahmad Anas, Siti Barirah and Abdullah, Mohamad Khazani (2004) A new code for optical code division multiple access systems. Malaysian Journal of Computer Science, 17 (2). pp. 30-39. ISSN 0127-9084

Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah and Syed Ahmad Abdul Rahman, Sharifah Mumtazah and Shafie @ Musa, Siti Mariam (2017) Maze warriors. In: Nature's Yield and Wonders of Art (NYAWA)17: Light. Universiti Putra Malaysia Press, Serdang, Selangor, pp. 61-64. ISBN 9789679604269

Duraikannan, Shankar and Ahmad Anas, Siti Barirah and Mohd Ali, Borhanuddin and Zan, Zuraidah and Thiruchelvam, Vinesh (2018) Cascaded dual drive MZM and dual parallel MZM architecture for optical linearization of MZM nonlinearity. In: 2018 IEEE 7th International Conference on Photonics (ICP), 9-11 Apr. 2018, Langkawi, Kedah, Malaysia. .

Mohamad Nor, Mohd Hafiz and Kanesan, Thavamaran and Maskuriy, Farha and Yusof, Ashaari and Abdul Fatah, Mohd Faiz Aizad and Ahmad Anas, Siti Barirah (2017) Experimental realization of multi-service RoF system using OCS-PolMux techniques. In: 19th IEEE International Conference on Advanced Communications Technology (ICACT 2017), 19-22 Feb. 2017, Pyeongchang, South Korea. (pp. 148-151).

Moghaddasi, Majid and Sahbudin, Ratna Kalos Zakiah and Mokhtar, Makhfudzah and Ahmad Anas, Siti Barirah (2016) Investigation of circulation noise effect on SAC-OCDMA system with ring topology. In: 2016 IEEE 6th International Conference on Photonics (ICP), 14-16 Mar. 2016, Kuching, Sarawak. .

Idriss, Yahaya and Sahbudin, Ratna Kalos Zakiah and Hitam, Salasiah and Ahmad Anas, Siti Barirah (2016) Performance comparison of indoor VLC system employing SAC-OCDMA technique. In: 2016 IEEE 6th International Conference on Photonics (ICP), 14-16 Mar. 2016, Kuching, Sarawak. .

Moghaddasi, Majid and Hitam, Salasiah and Abas, Ahmad Fauzi and Muhammad Noor, Ahmad Shukri and Ahmad Anas, Siti Barirah (2014) OCDMA multi service with zero cross correlation code in free space optics. In: 5th International Conference on Photonics (ICP 2014), 2-4 Sept. 2014, Palace of the Golden Horses, Kuala Lumpur, Malaysia. (pp. 106-108).

Moghaddasi, Majid and Seyedzadeh, Saleh and Ahmad Anas, Siti Barirah (2014) Optical code division multiple access codes comparison in free space optics and optical fiber transmission medium. In: 2014 IEEE Region 10 Symposium, 14-16 Apr. 2014, Kuala Lumpur, Malaysia. (pp. 181-184).

Noura, Amin and Mamdoohi, Ghazaleh and Yaacob, Mohd Hanif and Abu Bakar, Muhammad Hafiz and Ahmad Anas, Siti Barirah (2014) Optimization of hybrid Raman-Brillouin-EDF amplification fiber laser in long distance FBG sensor system. In: 5th International Conference on Photonics (ICP 2014), 2-4 Sept. 2014, Palace of the Golden Horses, Kuala Lumpur, Malaysia. (pp. 204-206).

Kakaee, Majid H. and Essa, Shawnim I. and Seyedzadeh, Saleh and Mokhtar, Makhfudzah and Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah (2014) Proposal of multi-service (MS) code to differentiate quality of services for OCDMA systems. In: 5th International Conference on Photonics (ICP 2014), 2-4 Sept. 2014, Palace of the Golden Horses, Kuala Lumpur, Malaysia. (pp. 176-178).

Wan Ngah, Wan Nurhanani and Hashim, Shaiful Jahari and Abas, Ahmad Fauzi and Varahram, Pooria and Ahmad Anas, Siti Barirah (2014) Reduction of peak to average power ratio in coherent optical orthogonal frequency division multiplexing using companding transform. In: 2014 IEEE Region 10 Symposium, 14-16 Apr. 2014, Kuala Lumpur, Malaysia. (pp. 177-180).

Md Ali, Mas Izyani and Muhammad Noor, Ahmad Shukri and Ahmad Anas, Siti Barirah and Abu Bakar, Muhammad Hafiz and Mahdi, Mohd Adzir (2014) Stable dual-wavelength fiber laser utilizing tapered-EDF as comb filter in hybrid Raman-EDF gains. In: 5th International Conference on Photonics (ICP 2014), 2-4 Sept. 2014, Palace of the Golden Horses, Kuala Lumpur, Malaysia. (pp. 87-89).

Kakaee, Majid H. and Seyedzadeh, Saleh and Fadhil, Hilal Adnan and Ahmad Anas, Siti Barirah and Mokhtar, Makhfudzah (2013) New dynamic technique for SAC-OCDMA system. In: 4th International Conference on Photonics (ICP2013), 28-30 Oct. 2013, Equatorial Hotel Melaka, Malaysia. (pp. 120-122).

Noura, Amin and Seyedzadeh, Saleh and Ahmad Anas, Siti Barirah (2013) Simultaneous vibration and humidity measurement using a hybrid WDM/OCDMA sensor network. In: 4th International Conference on Photonics (ICP2013), 28-30 Oct. 2013, Equatorial Hotel Melaka, Malaysia. (pp. 163-165).

Kharazi, Seyed Mohammad Saleh Seyedzadeh and Sahbudin, Ratna Kalos Zakiah and Abas, Ahmad Fauzi and Ahmad Anas, Siti Barirah (2013) Weight optimization of variable weight OCDMA for triple-play services. In: 4th International Conference on Photonics (ICP2013), 28-30 Oct. 2013, Equatorial Hotel Melaka, Malaysia. (pp. 99-101).

Shargh, Raheleh Sonee and Al-Mansoori, Mohammed Hayder and Ahmad Anas, Siti Barirah and Sahbudin, Ratna Kalos Zakiah and Abu Bakar, Muhammad Hafiz and Mahdi, Mohd Adzir (2012) Effect of Raman pump direction on conventional multiwavelength Brillouin-Raman fiber laser. In: 3rd International Conference on Photonics 2012 (ICP 2012), 1-3 Oct. 2012, Penang, Malaysia. (pp. 184-186).

Kakaee, Majid H. and Seyed Mohammad Saleh, Seyedzadeh Kharazi and Ahmad Anas, Siti Barirah and Fadhil, Hilal Adnan and Sahbudin, Ratna Kalos Zakiah and Mokhtar, Makhfudzah (2012) Performance analysis of hybrid SAC-OCDMA/WDMA system using Random Diagonal code. In: 3rd International Conference on Photonics 2012 (ICP 2012), 1-3 Oct. 2012, Penang, Malaysia. (pp. 285-289).

Md Ali, Mas Izyani and Musa, Baktiar and Muhammad Noor, Ahmad Shukri and Ahmad Anas, Siti Barirah and Abdul Kadir @ Jaafar, Muhammad Zamzuri and Mahdi, Mohd Adzir (2011) Characterization of tapered-erbium doped fiber in co-propagating amplifier. In: 2011 IEEE 2nd International Conference on Photonics, 17-19 Oct. 2011, Le Meridien Hotel, Kota Kinabalu, Sabah. .

Kharazi, Seyed Mohammad Saleh Seyedzadeh and Mahdiraji, Ghafour Amouzad and Sahbudin, Ratna Kalos Zakiah and Mokhtar, Makhfudzah and Abas, Ahmad Fauzi and Ahmad Anas, Siti Barirah (2011) Performance analysis of a variable-weight OCDMA system under the impact of fiber impairments. In: 2011 IEEE 2nd International Conference on Photonics, 17-19 Oct. 2011, Le Meridien Hotel, Kota Kinabalu, Sabah. .

Mohamad, Hafizah and Md. Yusoff, Nelidya and Abu Bakar, Muhammad Hafiz and Shahabuddin, Nurul Shahrizan and Abdul Rashid, Hairul Azhar and Yusoff, Zulfadzli and Ismail, Alyani and Ahmad Anas, Siti Barirah and Mahdi, Mohd Adzir (2011) Ultrashort pulse laser generation in ring-type EDFL using carbon-nanotube saturable absorber. In: 2011 IEEE 2nd International Conference on Photonics, 17-19 Oct. 2011, Le Meridien Hotel, Kota Kinabalu, Sabah. .

Cheah, Cheng Lai and Abdullah, Mohamad Khazani and Ahmad Anas, Siti Barirah and Mahdi, Mohd Adzir and Mohd Ali, Borhanuddin (2005) An adaptive error correction scheme for SDH based wavelength division multiplexed optical networks. In: 2005 13th IEEE International Conference on Networks Networks jointly held with the 2005 IEEE 7th Malaysia International Conference on Communication, 16-18 Nov. 2005, Kuala Lumpur, Malaysia. (pp. 661-666).

Hisham, M. H. and Syed Junid, Syed Alwee Aljunid and Liew, H. L. and Samad, M. D. A. and Ahmad Anas, Siti Barirah and Abdullah, Mohamad Khazani (2004) Hybrid WDM/OCDMA system to support differentiated services in access network. In: IEEE International Conference on Semiconductor Electronics (ICSE 2004), 7-9 Dec. 2004, Kuala Lumpur, Malaysia. (pp. 364-368).

Ahmad Anas, Siti Barirah (2002) Design And Analysis Of a Multi-channel Optical Fibre Lan Based On Modified Csma/cd Protocol. Masters thesis, Universiti Putra Malaysia.