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- W2896932677 abstract "In this article, we experimentally demonstrate an optical wireless communication link based on Non-Return to Zero (NRZ) On-Off Keying (OOK) modulation with pre-emphasis circuit for high-speed application. We propose an economical hardware pre-emphasis circuit comprise of one operational amplifier and an RC filter stage with a high-pass frequency response to enhance passband characteristic of optical wireless communication link. The validity of the pre-emphasis circuit has been demonstrated by using existing fiber optic and optical wireless communication link and components in our laboratory operating at 1550 nm. But the same pre-emphasis circuit can be used in other wavelength applications including visual light wavelength range via light-emitting diodes (LED). By using proposed pre-emphasis circuit, 3 dB bandwidth of optical wireless link can be extended from 225 to 942 MHz (compared to 289 to 469 MHz without pre-emphasis circuit). We observed the Bit-Error-Rate (BER) optical power penalty improvement of 2.5 dB at BER of 2 × 10−3 (forward error correction [FEC] limits) and 3.6 dB improvement at BER of 1 × 10−9, with a data rate of 1.244 Gb/s." @default.
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- W2896932677 date "2018-10-09" @default.
- W2896932677 modified "2023-09-26" @default.
- W2896932677 title "Demonstration of an optical wireless communication link with pre-emphasis circuit for high-speed application" @default.
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- W2896932677 doi "https://doi.org/10.1002/mop.31491" @default.
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