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Szczerba, K., Westbergh, P., Karout, J., Gustavsson, J., Haglund, A., Karlsson, M., Andrekson, P., Agrell, E. and Larsson, A. (2011) 30 Gbps 4-PAM Transmission over 200 m of MMF Using an 850 nm VCSEL. Optics Express, 19, B203-B208. http://dx.doi.org/10.1364/OE.19.00B203

has been cited by the following article:

• TITLE: 4-Pulsed Amplitude Modulation Optical Downlink Signals Reception in Optical Access Systems Using Different Bandwidth Optical Bessel Filter

  AUTHORS: Fuping Chen, Yufeng Shao, Lao Chen, Shilu Shen

  KEYWORDS: Passive Optical Access, 4-PAM, OBF, Downlink, Bit Error Rate (BER)

  JOURNAL NAME: Optics and Photonics Journal, Vol.6 No.8B, August 25, 2016

  ABSTRACT: A novel scheme which can realize high-speed optical signals transmission and reception by using 4-pulsed amplitude modulation (4-PAM) and demodulation in 10 Gb/s passive optical access systems with different bandwidth optical Bessel filter (OBF) is introduced. In this scheme, a PAM sequence generator module, an M-ary pulse generator module and one Mach-Zehnder intensity Modulator (MZM) are employed for generating the 10 Gb/s optical 4-PAM signals. And then, the generated optical 4-PAM signal achieves transmission over 20 km single mode fiber (SMF) for downstream (DS) access links application. Finally, the optical 4-PAM signal after transmission is directly detected and demodulated. We measure time-domain sequential waveform curves, optical spectrum curves, and eye-diagrams, and analyze the receiver sensitivity of 10 Gb/s 4-PAM signals before and after transmission. The received performance of the optical 4-PAM signals after transmission over 20 km single mode fiber (SMF) with different bandwidth OBF has also been analyzed.