VCSEL transmission at 10Gb/s for 20km single mode fiber WDM-PON without dispersion compensation or injection locking

Free-Running 1550 nm VCSEL for 107 Gb/s Transmission in 997 km PON

“…We extend on our previous investigations [11][12][13] of the performance of a cooler-less 1550 nm VCSEL directly modulated at 10.7 Gb/s. We report on error-free transmission of the optical Manuscript received July 9, 2010 − 1 bits, with a receiver power level of −19 dBm; this is similar to the sensitivity levels reported by injection-locked systems operating at 10 Gb/s [9].…”

“…Under these conditions, the OTF only improved the OSNR at the receiver by rejecting out of band ASE, but performed no dispersion compensation or frequency-to-intensity mapping. Discussions of asymmetric optical filtering in directly modulated links appear in the literature [11,12,16]. …”

Half-cycle QAM modulation for VCSEL-based optical links

“…These advantages make VCSELs attractive light sources for high-speed optical communication links in data centers and optical access networks. Optical links that use long-wavelength VCSELs and on-off keying (OOK) modulation are limited in transmission reach by chromatic dispersion of optical fibers due to frequency chirping caused by direct modulation of the VCSEL and large occupied bandwidth of signals [5][6][7][8]. For 10-Gbps data transmission using 1.5-µm VCSELs, 3-dB power penalty after 10-km single mode fiber (SMF) was experimentally observed [6] and 11-dB power penalty after 20-km SMF was simulated [7].…”

“…Optical links that use long-wavelength VCSELs and on-off keying (OOK) modulation are limited in transmission reach by chromatic dispersion of optical fibers due to frequency chirping caused by direct modulation of the VCSEL and large occupied bandwidth of signals [5][6][7][8]. For 10-Gbps data transmission using 1.5-µm VCSELs, 3-dB power penalty after 10-km single mode fiber (SMF) was experimentally observed [6] and 11-dB power penalty after 20-km SMF was simulated [7]. To deal with the effect of chromatic dispersion for OOK systems, dispersion management and dispersion mitigation methods have been proposed [5][6][7][8].…”

“…For 10-Gbps data transmission using 1.5-µm VCSELs, 3-dB power penalty after 10-km single mode fiber (SMF) was experimentally observed [6] and 11-dB power penalty after 20-km SMF was simulated [7]. To deal with the effect of chromatic dispersion for OOK systems, dispersion management and dispersion mitigation methods have been proposed [5][6][7][8]. Advanced modulation formats also have been proposed to reduce the bandwidth of the signals.…”