A 400G optical wireless integration delivery system

Abstract

We experimentally demonstrate a record 400G optical wireless integration system simultaneously delivering 2 × 112 Gb/s two-channel polarization-division-multiplexing 16-ary quadrature amplitude modulation (PDM-16QAM) signal at 37.5 GHz wireless carrier and 2 × 108 Gb/s two-channel PDM quadrature phase shift keying (PDM-QPSK) signal at 100 GHz wireless carrier, adopting two millimeter-wave (mm-wave) frequency bands, two orthogonal antenna polarizations, multiple-input multiple-output (MIMO), photonic mm-wave generation and advanced digital signal processing (DSP). In the case of no fiber transmission, the bit error ratios (BERs) for both the 112 Gb/s PDM-16QAM signal after 1.5 m wireless delivery at 37.5 GHz and the 108 Gb/s PDM-QPSK signal after 0.7 m wireless delivery at 100 GHz are below the pre-forward-error-correction (pre-FEC) threshold of 3.8 × 10(-3). To our knowledge, this is the first demonstration of a 400G optical wireless integration system in mm-wave frequency bands and also a capacity record of wireless delivery.

W-band RoF transmission based on optical multi-carrier generation by cascading one directly-modulated DFB laser and one phase modulator

“…It can be seen that compared to the case of no LEAF transmission and no wireless delivery, 1.5-dB power penalty at the BER of 1 Â 10 À 9 is caused by 2-m wireless delivery while almost no penalty is caused by 20-km LEAF transmission. We also measure and confirm that all the pairs of subcarriers spaced at 100 GHz, denoted by (1,9), (2,10), (3,11), (4,12), (5,13), (6,14), (7,15) and (8,16) in Fig. 2(b), exhibit the similar performance.…”

“…It is well known that remote heterodyning is one kind of simple and cost-effective photonic mm-wave technique, in which, two optical carriers with different wavelengths are generated from two individual lasers and then beat together to generate a specific mm-wave frequency. However, in an optical mm-wave multiplexing system [13], multiple mmwave frequencies are needed at the same time, which requires much more optical carriers. Thus, an optical multi-carrier source can be used for the mm-wave frequency generation to avoid the requirement for a large number of lasers [14].…”

400-GHz Wireless Transmission of 60-Gb/s Nyquist-QPSK Signals Using UTC-PD and Heterodyne Mixer

“…We can see that the optoelectronics approach has made significant contributions on delivering very high data rates, particularly above 10 Gb/s. So far the highest singletransmitter bit rate of 100 Gb/s has been achieved at the W-band [8] and 237 GHz [13], and maximum 64 Gb/s based on allelectronics approach [25] and 50 Gb/s based on optoelectronics approach [26] in the frequency range of 300-400 GHz and above have been reported.…”

60 Gbit/s 400 GHz wireless transmission

“…Carrier frequencies have been increased from W-band (75-110 GHz) to 600 GHz, attempting to explore more available frequency bandwidth. So far the highest singletransmitter bit rates of 100 Gbit/s has been demonstrated at 100 GHz [8] and 237 GHz [13], but only tens of Gbit/s and a few Gbit/s in the frequency range of 300-400 GHz and above have been reported. In addition, although off-line digital signal processing (DSP) is advantageous in investigating those very high data-rate communication systems, real time detection for instant information exchange with negligible latency, is necessary for implementing practical telecommunication systems.…”