WDM-PON experiences in Korea [Invited]

Feature Issue on Passive Optical Network Architectures and TechnologiesWDM-PON activities in Korea including research and development were reviewed. The WDM-PON commercialized in Korea is aimed at delivering a 100 Mbits/s dedicated symmetric bandwidth to each home, based on the prediction of a small statistical gain for future video-centric services. The developed 32-channel WDM-PON based on wavelength-locked Fabry-Perot LDs was qualified by Korea Telecom (KT) and was deployed in KT's networks. Many studies have been conducted with the aim of enhancing the performance of the WDM-PON. High-speed data rate per channel, longer reach, narrow channel spacing, and a high split ratio with the help of subcarrier multiple access or time-division multiple access have been demonstrated. A protection method for feeder fiber fault and OSP fault-monitoring methods were also demonstrated. A gradual upgrade solution from the existing time-division multiplexing-PON to WDM-PON has also been proposed.

[1]  Chang-Hee Lee,et al.  Large-capacity hybrid WDM/SCMA-PON using wavelength-locked Fabry-Perot laser diodes , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[2]  Y.C. Chung,et al.  Fault localization in WDM passive optical network by reusing downstream light sources , 2005, IEEE Photonics Technology Letters.

[3]  H.S. Shin,et al.  Polarization-independent, high-power, and angle-flared superluminescent diode for WDM-PON applications , 2005, 2005 IEEE LEOS Annual Meeting Conference Proceedings.

[4]  Chang-Hee Lee,et al.  An Efficient Evolution Method From TDM-PON to Next-Generation PON , 2007, IEEE Photonics Technology Letters.

[5]  Chang-Hee Lee,et al.  Dense WDM-PON based on wavelength locked Fabry-Perot lasers , 2005, OFC/NFOEC Technical Digest. Optical Fiber Communication Conference, 2005..

[6]  M. H. Reeve,et al.  A radically new approach to the installation of optical fibre using the viscous flow of air , 1983 .

[7]  U. Koren,et al.  A wavelength-division multiplexed passive optical network with cost-shared components , 1994, IEEE Photonics Technology Letters.

[8]  Chang-Hee Lee,et al.  Overlay of broadcasting signal in a WDM-PON , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[9]  Sang-Kook Han,et al.  Reflective SOA-Based Bidirectional WDM-PON Sharing Optical Source for Up/Downlink Data and Broadcasting Transmission , 2006, IEEE Photonics Technology Letters.

[10]  Chang-Hee Lee,et al.  Fiber-to-the-home services based on wavelength-division-multiplexing passive optical network , 2004 .

[11]  Chang-Hee Lee,et al.  Color-free operation of dense WDM-PON based on the wavelength-locked fabry-Pe/spl acute/rot laser diodes injecting a low-noise BLS , 2006, IEEE Photonics Technology Letters.

[12]  Chang-Hee Lee,et al.  Broad-band light source using mutually injected Fabry-Pe/spl acute/rot laser diodes for WDM-PON , 2005 .

[13]  Dong Jae Shin,et al.  Hybrid WDM/TDM-PON with wavelength-selection-free transmitters , 2005, Journal of Lightwave Technology.

[14]  Chang-Hee Lee,et al.  Fault-localization in WDM-PONs , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[15]  Sil-Gu Mun,et al.  Demonstration of a Long-Reach DWDM-PON for Consolidation of Metro and Access Networks , 2007, Journal of Lightwave Technology.

[16]  K. Tanaka.  In-service individual line monitoring and a method for compensating for the temperature-dependent channel drift of a WDM-PON containing an AWGR using a 1.6 tunable OTDR , 1997 .

[17]  Sil-Gu Mun,et al.  Dense WDM-PON based on wavelength-locked Fabry-Pe/spl acute/rot laser diodes , 2005 .

[18]  Chun-Kit Chan,et al.  An optical network unit for WDM access networks with downstream DPSK and upstream remodulated OOK data using injection-locked FP laser , 2003, IEEE Photonics Technology Letters.

[19]  Chang-Hee Lee,et al.  Laser spectral envelope control using a double contact fabry-Perot laser diode for WDM-PON , 2006, IEEE Photonics Technology Letters.

[20]  Yun Chur Chung,et al.  Bidirectional WDM passive optical network for simultaneous transmission of data and digital broadcast video service , 2003 .

[21]  Chang-Hee Lee,et al.  Hybrid WDM/SCMA-PON using wavelength-locked fabry-Pe/spl acute/rot laser diodes , 2006, IEEE Photonics Technology Letters.

[22]  Ki-Tae Jeong,et al.  Fiber-tothe-Home Services Based on Wavelength-Division-Multiplexing Passive Optical Network , 2004 .

[23]  Hyun Deok Kim,et al.  A low-cost WDM source with an ASE injected Fabry-Perot semiconductor laser , 2000, IEEE Photonics Technology Letters.

[24]  E.H. Lee,et al.  Uncooled C-band wide-band gain lasers with 32-channel coverage and -20-dBm ASE injection for WDM-PON , 2006, IEEE Photonics Technology Letters.

[25]  Sang-Kook Han,et al.  A novel hybrid WDM/SCM-PON sharing wavelength for up- and down-link using reflective semiconductor optical amplifier , 2006, IEEE Photonics Technology Letters.

[26]  Wooram Lee,et al.  Frequency detuning effects in a loop-back WDM-PON employing gain-saturated RSOAs , 2006, IEEE Photonics Technology Letters.

[27]  Jin-Serk Baik,et al.  A method of lifeline communication in WDM passive optical networks , 2005 .

[28]  K. Okamoto.  Fundamentals of Optical Waveguides , 2000 .

[29]  Sil-Gu Mun,et al.  A theoretical model of a wavelength-locked Fabry-Pe/spl acute/rot laser diode to the externally injected narrow-band ASE , 2005 .

[30]  Chang-Hee Lee,et al.  Fiber to the Home Using a PON Infrastructure , 2006, Journal of Lightwave Technology.

[31]  D.J. Shin,et al.  Transmission of HDTV and Ethernet data over a WDM-PON employing ASE-injected Fabry-Perot laser diodes , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[32]  Katsumi Iwatsuki,et al.  Noise characteristics of signal reflected from ASE-injected FP-LD in loopback access networks , 2006 .

[33]  Wooram Lee,et al.  Over 26-nm Wavelength Tunable External Cavity Laser Based on Polymer Waveguide Platforms for WDM Access Networks , 2006, IEEE Photonics Technology Letters.

[34]  Byoung Whi Kim,et al.  Bidirectional WDM-PON based on gain-saturated reflective semiconductor optical amplifiers , 2005, IEEE Photonics Technology Letters.

[35]  Soo-Jin Park,et al.  WDM-PON system based on the laser light injected reflective semiconductor optical amplifier , 2006 .