Chapter 1: Introduction  Design of hybrid multiplexer for WI-DWDM integrated access network [Publication Ref: 8, 16, Section 1.6].  Experimental demonstration of hybrid wavelength-interleaved multiplexing scheme incorporating 37.5 GHz RF, 2.5 GHz IF and BB signals for a DWDM integrated access network, spaced at 12.5 GHz [Publication Ref: 8, 16, Section 1.6].  Proposals of hybrid demultiplexing schemes for WI-DWDM integrated access network [Publication Ref: 7, 22, Section 1.6] .  Experimental demonstration of a hybrid wavelength-interleaved demultiplexing scheme incorporating 37.5 GHz RF, 2.5 GHz IF and baseband signals for a DWDM integrated access network, spaced at 12.5 GHz [Publication Ref: 7, 22, Section 1.6]. 1.6 Publications Originated from This Work JOURNAL PUBLICATIONS 1. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, and Christina Lim, “Multifunctional WDM optical interface for millimeter-wave fiber-radio antenna base station” published in IEEE Journal of Lightwave Technology (JLT), 2005 [Ref: Vol. 23, No. 3, pp. 1210-1218, 2005]. 2. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Efficient multiplexing scheme for wavelength-interleaved DWDM millimeter-wave fiber-radio systems” published in IEEE Photonics Technology Letters (PTL), 2005 [Ref: Vol. 17, No. 12, pp. 2718-2720, 2005]. 15 Chapter 1: Introduction 3. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Performance characterization of single as well as cascaded WDM optical interfaces in millimeter-wave fiber-radio networks” published in IEEE Photonics Technology Letters (PTL), 2006 [Ref: Vol. 18, No. 1, pp. 115-117, 2006]. 4. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Simultaneous Multiplexing and Demultiplexing of Wavelength-Interleaved Channels in DWDM Millimeter- Wave Fiber-Radio Networks” submitted to IEEE Journal of Lightwave Technology (JLT). 5. Zhaohui Li, Ampalavanapillai Nirmalathas, Masuduzzaman Bakaul, Yang Jing Wen, Linghao Cheng, Jian Chen, Chao Lu, and Sheel Aditya, “Performance of WDM Fiber-Radio Network Using Distributed Raman Amplifier,” published in IEEE Photonics Technology Letters (PTL), 2006 [Ref: Vol. 18, No. 4, pp. 553-555, 2006]. 6. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Investigation of Performance Enhancement of WDM Optical Interfaces for Millimeter-Wave Fiber-Radio Networks” submitted to IEEE Photonics Technology Letters (PTL). 7. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Hybrid multiplexing and demultiplexing technologies towards the integration of millimeter-wave fiber-radio systems in DWDM Access Networks” submitted to IEEE Journal of Lightwave Technology (JLT). 16 Chapter 1: Introduction 8. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Hybrid Multiplexing of Multiband Optical Access Technologies Towards an Integrated DWDM Network” submitted to IEEE Photonics Technology Letters (PTL). 9. Angulugaha Gamage Prasanna, Ampalavanapillai Nirmalathas, Christina Lim, Masuduzzaman Bakaul, Dalma Novak, Rod B. Waterhouse, “Efficient Transmission Scheme for AWG-based DWDM Millimeter-Wave Fiber- Radio Systems” to be submitted to IEEE Photonics Technology Letters (PTL). CONFERENCE PUBLICATIONS 10. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, and Christina Lim, “Dispersion tolerant novel base station optical interface for future WDM fibre-radio systems” presented at the Conference on Optical Internet Network (COIN) / Australian Conference on Optical Fibre Technology (ACOFT), Melbourne, Australia, July, 2003. 11. Ampalavanapillai Nirmalathas, Christina Lim, Manik Attygalle, Dalma Novak, Rod B. Waterhouse, and Masuduzzaman Bakaul, "Recent progress in fiber-wireless networks: Technologies and architectures", presented at the International Conference on Optical Communications and Networks (ICOCN 2003), Bangalore, India, October, 2003. [Invited paper] 12. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, and Christina Lim, “Experimental verification of cascadability of WDM optical interfaces for Future DWDM Millimeter-wave fiber-radio base stations” presented at the International Topical Meeting on Microwave Photonics (MWP 2004), Maine, USA, October, 2004. 17 Chapter 1: Introduction 13. Manik Attygalle, Christina Lim, Masuduzzaman Bakaul, and Ampalavanapillai Nirmalathas, “Extending transmission distance in wavelength reused fiber-radio links with FBG filters,” presented at the Optical Fiber Communication Conference (OFC/NFOEC2005), Anaheim, USA, March, 2005. 14. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Simplified multiplexing scheme for wavelength-interleaved DWDM millimeter-wave fiber-radio systems” presented at the European Conference on Optical Communication (ECOC 2005) , Glasgow, Scotland, September, 2005. 15. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Simplified multiplexing and demultiplexing scheme for wavelength-interleaved DWDM millimeter-wave fiber-radio systems” presented at the International Topical Meeting on Microwave Photonics (MWP 2005), Seoul, South Korea, October, 2005. 16. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Hybrid multiplexing towards the integration of millimeter-wave fiber-radio systems in DWDM Access Networks” presented at the IEEE Topical Meeting on Lasers and Electro- Optics Society (LEOS 2005), Sydney, Australia, October, 2005. [2 nd prize winner in the best student paper award competition] 17. Zhaohui Li, Ampalavanapillai Nirmalathas, Masuduzzaman Bakaul, Linghao Cheng, Yang Jing Wen, Chao Lu, “Application of distributed Raman amplifier for the performance improvement of WDM millimeter-wave fiber- radio network” presented at the IEEE Topical Meeting on Lasers and Electro- Optics Society (LEOS 2005), Sydney, Australia, October, 2005. 18 Chapter 1: Introduction 18. Ampalavanapillai Nirmalathas, Masuduzzaman Bakaul, Christina Lim, Dalma Novak, Rod B. Waterhouse, “ Fiber Wireless Networks” presented at the SPIE Asia-Pacific Optical Communications Conference (APOC 2005), Shanghai, China, November, 2005. [Invited paper] 19. Ampalavanapillai Nirmalathas, Masuduzzaman Bakaul, Christina Lim, Manik Attygalle, Dalma Novak, Rod B. Waterhouse, “Wavelength Division Multiplexed Fiber-Radio Networks” presented at the Asia-Pacific Microwave Photonics Conference (AP-MWP 2006), Tokyo, Japan, April, 2006. [Invited paper] 20. Angulugaha Gamage Prasanna, Ampalavanapillai Nirmalathas, Christina Lim, Masuduzzaman Bakaul, Dalma Novak, Rod B. Waterhouse, “Wavelength reuse upstream transmission scheme for AWG-based DWDM millimeter-wave fiber-radio systems” presented at the Asia-Pacific Microwave Photonics Conference (AP-MWP 2006), Tokyo, Japan, April, 2006. 21. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. Waterhouse, “Modified WDM Optical Interface for Performance Enhancement of Millimetre-Wave Fibre-Radio Networks” accepted in Australian Conference on Optical Fibre Technology (ACOFT /AOS 2006) to be held in Melbourne, Australia, July, 2006. 22. Masuduzzaman Bakaul, Ampalavanapillai Nirmalathas, Christina Lim, Dalma Novak, Rod B. 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Waterhouse, “On the merging of millimeter-wave fiber-radio backbone with 25-GHz WDM ring networks,” Journal of Lightwave Technol., Vol. 21, no. 10, pp. 2203-2210. 23 Chapter 1: Introduction 24 [...]... involving the 25 Chapter 2: Literature Review network impairments in wavelength-division-multiplexed (WDM mm-wave fibreradio networks and the modulation depth enhancement of mm-wave fibre -radio links are summarised in Sections 2. 4 and 2. 5 respectively The literature towards the realisation of an integrated optical access network incorporating mm-wave fibreradio systems are reviewed in Section 2. 6 2. 2 Base...Chapter 2: Literature Review 2 2.1 LITERATURE REVIEW Introduction Chapter 1 has outlined how millimetre-wave (mm-wave) fibre -radio systems are developed to meet the future bandwidth requirements for broadband wireless access (BWA) in ‘last mile’ communication A generic architecture of mm-wave fibre -radio network is shown in Fig 1.3 In these networks multiple remote antenna base stations (BSs), suitable for. .. combination of an optical isolator and a 100% reflective fibre Bragg grating (FBG), the schematic diagram of which can be seen from Fig 2. 7 As shown in the Fig 2. 7, 100% reflective FBG reflects the 37 Chapter 2: Literature Review Fig .2. 7: Configuration for optical carrier recovery based on an optical coupler in conjunction with a combination of a fibre Bragg Grating filter and an optical isolator [courtesy:... can be seen in Fig 2. 8 It shows that the downlink optical mmwave signal (in OSSB+C modulation format) enters the optical circulator through port-1, travels from port-1 to port -2, and encounters the 50% reflective FBG at port2, which reflects 50% of the optical carrier from the downlink optical mm-wave 38 Chapter 2: Literature Review signal The reflected optical carrier is recovered at port-3 of the OC... from Fig 2. 3 Like before, due to having LOs and mixers, this scheme also is not flexible for centralised control and monitoring [1, 14, 31- 32] However, this scheme is suitable for implementing multiple channel transmission by using subcarrier multiplexing (SCM), where different radio channels can be superimposed onto different subcarrier frequencies before the combined signal is modulated by an optical. .. in Fig 2. 4 Wavelength reuse or ‘single wavelength for single BS’ technique is a smart method that eliminates the need for a separate light-source for upstream communication This technique enables the fibre feeder network to support additional BSs through a single CO by increasing the availability of optical carriers within the flat-gain region of EDFA, which is very important in future WDM fibreradio... multiple radio channel enabling hardware, in addition to RF signal conditioning circuits, diplexer and radiating antenna optical access network can be easily realised [27 -28 ] However, those benefits are offered at the expense of a complicated BS architecture, as additional hardware and signal processing circuits are required at the BS to process the received and transmitted radio signals Fig 2. 2 shows... received and transmitted radio signals Fig 2. 2 shows the generic BS architecture that enables BBover-fibre transport scheme for mm-wave fibre -radio systems As shown in the Fig 2. 2, the radio signal in the rf interface needs to pass through multistage up/down conversion and multiple radio channel enabling multiplexing and demultiplexing devices, in addition to the RF signal conditioning circuits, diplexer... transmit optical mm-wave signals [1,14] The introduction of WDM in fibre feeder network enable these systems to interconnect multiple BSs to the CO through a O A D M O/E rf Fig 2. 1: Generic BS architecture incorporating 3 integrated interfaces: OADM interface adds and drops the desired channels to and from the feeder network, O/E interface converts signals from optical- to-electrical and electrical-to -optical. .. [14, 31- 32, 55] Similar to IF-over-fibre scheme, this scheme is also suitable for implementing multiple channel transmission by using SCM, by which integrated radio frequency services can be easily realised [35-37, 43-44] However, RF-over-fibre transport is susceptible to the adverse effects of fibre chromatic dispersion (CD), which limits the fibre transmission distance severely [22 , 25 -26 , 56-58] . 1997 [22 ] H. Ogawa, D. Polifko, and S. Banba, “Millimeter wave fiber optics systems for personal radio communication,” IEEE Trans. Microwave Theory Tech., vol. 40, pp. 22 85 -22 93, 19 92. [23 ] O multiplexing scheme for wavelength-interleaved DWDM millimeter-wave fiber- radio systems published in IEEE Photonics Technology Letters (PTL), 20 05 [Ref: Vol. 17, No. 12, pp. 27 18 -27 20, 20 05]. 15. “Multifunctional WDM optical interface for millimeter-wave fiber- radio antenna base station” published in IEEE Journal of Lightwave Technology (JLT), 20 05 [Ref: Vol. 23 , No. 3, pp. 121 0- 121 8, 20 05]. 2.