Characterization of Directly Modulated Self-Seeded Reflective Semiconductor Optical Amplifiers Utilized as Colorless Transmitters in WDM-PONs

The transmission performances of the wavelength-division-multiplexed passive optical networks based on directly modulated self-seeded reflective semiconductor optical amplifiers (RSOAs) are investigated and analyzed. The impacts of signal extinction ratio (ER), stable seeding power, pattern length dependency, bandwidth and shape factor of the wavelength multiplexer within the self-seeding cavity, and length of the self-seeding cavity on the transmission performance are investigated. The ER is optimized to bring the best receiver sensitivity when the loss of the self-seeding cavity is fixed. The optimal ER and the corresponding receiver sensitivity are improved with the stable seeding power which decreases with the loss of the self-seeding cavity. Compared to the Gaussian-shaped pass band, the wavelength multiplexer with a flat-top pass band brings better transmission performances and enables error-free transmission with a smaller pass band bandwidth. The transmission performance of the directly modulated self-seeded RSOA is robust against the phase perturbation induced by the micro change in the cavity length but is degraded remarkably when the cavity length is extended to several kilometers. Nevertheless, error-free transmission is achieved when the cavity length is extended to 4 km. The findings of this paper provide a better understanding of the mechanism of the directly modulated self-seeded RSOAs and also guidance on designing the WDM-PON systems using the self-seeded RSOAs.

[1]  N. Olsson,et al.  Self-phase modulation and spectral broadening of optical pulses in semiconductor laser amplifiers , 1989 .

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

[3]  Dekun Liu,et al.  System evaluation of economic 16/32chs 1.25Gbps WDM-PON with self-seeded RSOA. , 2012, Optics express.

[4]  Paul D. Townsend,et al.  Spectral slicing WDM-PON using wavelength-seeded reflective SOAs , 2001 .

[5]  Qi Guo,et al.  20-Gb/s Single-Feeder WDM-PON Using Partial-Response Maximum Likelihood Equalizer , 2011, IEEE Photonics Technology Letters.

[6]  Hoon Kim,et al.  DC-Balanced Line Coding for Downlink Modulation in Bidirectional WDM PONs Using Remodulation , 2011, IEEE Photonics Technology Letters.

[7]  Ernesto Ciaramella,et al.  Stable self-seeding of R-SOAs for WDM-PONs , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[8]  E. Wong,et al.  Directly Modulated Self-Seeding Reflective Semiconductor Optical Amplifiers as Colorless Transmitters in Wavelength Division Multiplexed Passive Optical Networks , 2007, Journal of Lightwave Technology.

[9]  Weisheng Hu,et al.  Upstream capacity upgrade in TDM-PON using RSOA based tunable fiber ring laser. , 2012, Optics express.

[10]  San-Liang Lee,et al.  Simple approach for bidirectional performance enhancement on WDM-PONs with directmodulation lasers and RSOAs. , 2008, Optics express.

[11]  U H Hong,et al.  Long-reach 10-Gb/s RSOA-based WDM PON employing QPSK signal and coherent receiver. , 2012, Optics express.

[12]  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.

[13]  Hoon Kim,et al.  Transmission of 10-Gb/s Directly Modulated RSOA Signals in Single-Fiber Loopback WDM PONs , 2011, IEEE Photonics Technology Letters.

[14]  Chang-Soo Park,et al.  Direct-modulated upstream signal transmission using a self-injection locked F-P LD for WDM-PON , 2005 .

[15]  M. S. Moreolo,et al.  Optical Fiber Communication Conference , 2014 .

[16]  Y.C. Chung,et al.  Effects of Downstream Modulation Formats on the Performance of BidirectionalWDM-PON using RSOA , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[17]  Sil-Gu Mun,et al.  Effects of Back-Reflection in WDM-PONs Based on Seed Light Injection , 2007, IEEE Photonics Technology Letters.

[18]  Wen-De Zhong,et al.  A Broadcast-Capable WDM-PON Based on Polarization-Sensitive Weak-Resonant-Cavity Fabry–Perot Laser Diodes , 2012, Journal of Lightwave Technology.

[19]  Wen-De Zhong,et al.  High-speed WDM-PON using CW injection-locked Fabry-Pérot laser diodes. , 2007, Optics express.

[20]  Mario Martinelli,et al.  Network-embedded self-tuning cavity for WDM-PON transmitter , 2011 .

[21]  E. Ciaramella,et al.  Uncooled and Polarization Independent Operation of Self-Seeded Fabry–Pérot Lasers for WDM-PONs , 2012, IEEE Photonics Technology Letters.

[22]  H. Y. Rhy,et al.  Current status of WDM-PON system development and standardization , 2012, 2012 17th Opto-Electronics and Communications Conference.