Radio over RSOA-based WDM-PON

Reflective semiconductor optical amplifiers (RSOAs) have recently received a lot of attention as cost-effective upstream optical transmitters for wavelength-division multiplexed passive optical networks. However, the modulation bandwidth of this semiconductor device is limited to ∼1.5 GHz and the device is largely used to accommodate <2.5-Gbps baseband signals. Recently we have proposed and demonstrated 10-Gbps operation of the RSOA using an optical delay interferometer (DI). The simple passive optical device acts as an optical equalizer as well as a vestigial side-band filter. In this paper, we present upstream transmission of 2-Gbps, 6-GHz radio signal using a directly modulated RSOA and a DI. Although the modulation bandwidth of our uncooled, transistor-outlook-can packaged device is only 1.2 GHz, not only does a 25-GHz DI equalize the limited bandwidth of the RSOA, but it also helps to generate a single sideband signal to make it resilient to the dispersion-induced RF fading.

[1]  I. Tomkos,et al.  Investigation of 10-Gb/s RSOA-Based Upstream Transmission in WDM-PONs Utilizing Optical Filtering and Electronic Equalization , 2008, IEEE Photonics Technology Letters.

[2]  E. Ciaramella,et al.  Enhancing Resilience to Rayleigh Crosstalk by Means of Line Coding and Electrical Filtering , 2010, IEEE Photonics Technology Letters.

[3]  F van Dijk,et al.  Radio-Over-Fiber Access Network Architecture Based on New Optimized RSOA Devices With Large Modulation Bandwidth and High Linearity , 2010, IEEE transactions on microwave theory and techniques.

[4]  I. Monroy,et al.  Bidirectional Radio-Over-Fiber System With Phase-Modulation Downlink and RF Oscillator-Free Uplink Using a Reflective SOA , 2008, IEEE Photonics Technology Letters.

[5]  Hoon Kim.  10-Gbps upstream transmission for WDM-PON using RSOA and delay interferometer , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[6]  Y. Takushima,et al.  Enhanced chromatic dispersion tolerance of 11 Gbit/s RSOA-based WDM PON using 4-ary PAM signal , 2010 .

[7]  Hoon Kim,et al.  10-Gb/s Operation of RSOA Using a Delay Interferometer , 2010, IEEE Photonics Technology Letters.

[8]  J. Prat,et al.  10 Gb/s RSOA transmission by direct duobinary modulation , 2008, 2008 34th European Conference on Optical Communication.

[9]  P. Poggiolini,et al.  Colorless 10Gb/s extended reach WDM PON with low BW RSOA using MLSE , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[10]  P.J. Winzer,et al.  Simple multichannel optical equalizer for mitigating intersymbol interference , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[11]  Y. Takushima,et al.  10-Gb/s Operation of RSOA for WDM PON , 2008, IEEE Photonics Technology Letters.

[12]  Zhansheng Liu,et al.  Experimental Validation of a Reflective Semiconductor Optical Amplifier Model Used as a Modulator in Radio Over Fiber Systems , 2011, IEEE Photonics Technology Letters.

[13]  Sang-Kook Han,et al.  1.25-Gb/s Wavelength-Division Multiplexed Single-Wavelength Colorless Radio-on-Fiber Systems Using Reflective Semiconductor Optical Amplifier , 2007, Journal of Lightwave Technology.

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