Discrete Multitone Modulation for Maximizing Transmission Rate in Step-Index Plastic Optical Fibers

170Mb/s multilevel transmission over 115m standard step-index plastic optical fiber using an integrated optical receiver

“…A real-time DMT system over 200 m SI-POF at 100 Mb/s upstream and a 100 Mb/s downstream part was realized based on VDSL2 chipsets in [9]. For the transmission experiment, optoelectronic interfaces based on 520 nm LEDs and large-area photodiodes were built.…”

“…Using this configuration, a data rate of 101.832 Mb/s upstream and 100.384 Mb/s downstream was achieved. A higher data rate of 1.44 Gb/s over 100 m SI-POF was also achieved in [9] but by using offline processing. The received DMT signal was received and stored, then the stored DMT signal was demodulated.…”

RCLED Optimization and Nonlinearity Compensation in a Polymer Optical Fiber DMT System

“…Additionally, in the POF networking, the discrete multi-tone (DMT) modulation [6][7][8] with a bit-loading algorithm has been an efficient solution to maximize the system capacity [9]. However, the DMT signal is extremely sensitive to the nonlinear behavior of the SI-POF systems [10], and the low-cost resonant cavity light emitting diode (RCLED) is the main device that causes the nonlinearity due to the following two reasons [11]:…”

Frequency Domain LED Compensation for Nonlinearity Mitigation in DMT Systems

“…Recently, there is an increasing interest in utilizing multi-carrier modulation techniques for optical communications [1] [3]. Discrete multi-tone (DMT) modulation, similar to well-known orthogonal frequency division multiplexing (OFDM) modulation, can approach the channel capacity in POF transmission employing bit-loading techniques [3][4][5].…”