Generation and Transmission of BB/MW/MMW Signals by Cascading PM and MZM

A bidirectional three-band lightwave transport system is proposed and experimentally demonstrated for both fiber-to-the-X (FTTX) and radio-over-fiber (RoF) networks. By cascading a phase modulator (PM) and a Mach-Zehnder modulator (MZM) to generate multiple coherent lightwaves, hybrid 1.25 Gbps baseband (BB), 1.25 Gbps/20 GHz microwave (MW), and 1.25 Gbps/40 GHz millimeter-wave (MMW) downstream signals and a 1.25 Gbps BB upstream signal are simultaneously transmitted. Furthermore, with an assistance of an optical signal-to-noise ratio (OSNR) enhancement circuit, sufficient low bit error rate (BER) values are experimentally achieved for both down-link BB/MW/MMW and up-link BB signals. No additional high-frequency local oscillator, mixers and upstream laser diode are required in both transmitter and receiver sites. Under this architecture, both wire-lined and wireless clients can be simultaneously served without using any extra device/equipment to convert the downstream signals among BB, MW and MMW formats.

[1]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[2]  J. Vukusic.  Optical Fiber Communications: Principles and Practice , 1986 .

[3]  J. Palais,et al.  Fiber Optic Communication , 2005 .

[4]  Hai-Han Lu,et al.  CATV/ROF transport systems based on light injection/optoelectronic feedback techniques and photonic crystal fiber , 2007 .

[5]  Yu-Chieh Chi,et al.  CATV/ROF Transport Systems Based on Light Injection/Optoelectronic Feedback Techniques and Photonic Crystal Fiber , 2007, 2007 Conference on Lasers and Electro-Optics - Pacific Rim.

[6]  J. A. Buck,et al.  Multiband Signal Generation and Dispersion-Tolerant Transmission Based on Photonic Frequency Tripling Technology for 60-GHz Radio-Over-Fiber Systems , 2008, IEEE Photonics Technology Letters.

[7]  Gee-Kung Chang,et al.  A Novel Bidirectional 60-GHz Radio-Over-Fiber Scheme With Multiband Signal Generation Using a Single Intensity Modulator , 2009, IEEE Photonics Technology Letters.

[8]  Gee-Kung Chang,et al.  Simultaneous Transmission of Wireless and Wireline Services Using a Single 60-GHz Radio-Over-Fiber Channel by Coherent Subcarrier Modulation , 2009, IEEE Photonics Technology Letters.

[9]  Shizhong Xie,et al.  RoF downlink transmission system using FWM effect of SOA for generating MM-Wave , 2009 .

[10]  Gee-Kung Chang,et al.  Advanced System Technologies and Field Demonstration for In-Building Optical-Wireless Network With Integrated Broadband Services , 2009, Journal of Lightwave Technology.

[11]  A. Enard,et al.  Transmission Quality Measurement of Two Types of 60 GHz Millimeter-Wave Generation and Distribution Systems , 2009, Journal of Lightwave Technology.

[12]  Hai-Han Lu,et al.  A broadband ASE light source-based full-duplex FTTX/ROF transport system. , 2009, Optics express.

[13]  Gee-Kung Chang,et al.  Arbitrary-frequency optical millimeter-wave generation for radio over fiber systems , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[14]  Gee-Kung Chang,et al.  Demonstration of simultaneous all-optical up-conversion of Gigabit wireless services at 60-GHz and 64-GHz in converged optical wireless system carried by single wavelength lightwave , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[15]  Sang-Kook Han,et al.  Full colorless WDM-RoF system with simultaneous transmission of 63-GHz and baseband 1.25-Gbps data by sideband separation , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[16]  Gee-Kung Chang,et al.  Optical Millimeter-Wave Generation and Transmission Without Carrier Suppression for Single- and Multi-Band Wireless Over Fiber Applications , 2010, Journal of Lightwave Technology.

[17]  Jing Li,et al.  A bidirectional 60 GHz RoF system based on FWM in a semiconductor optical amplifier , 2010 .

[18]  B Charbonnier,et al.  RSOA-based 10.3 Gbit/s WDM-PON with pre-amplification and electronic equalization , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[19]  L. Barry,et al.  Modulated Millimeter-Wave Generation by External Injection of a Gain Switched Laser , 2011, IEEE Photonics Technology Letters.

[20]  Hai-Han Lu,et al.  Novel ROF/FTTX/CATV hybrid three-band transport system. , 2011, Optics express.

[21]  P. Peng,et al.  RoF transport systems with OSNR enhanced multi-band optical carrier generator. , 2011, Optics express.