TY - JOUR
T1 - Transmission performance analysis of 8 × 10 Gb/s WDM signals using cascaded SOAs due to signal wavelength displacement
AU - Choi, Woosuk
AU - Hur, Sub
AU - Lee, Jaehoon
AU - Kim, Yonggyoo
AU - Jeong, Jichai
N1 - Funding Information:
Manuscript received January 8, 2002; revised May 13, 2002. This work was supported in part by the NRL and BK program in South Korea. W. Choi was with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. He is now with Telecommunications Network Laboratory (Korea Telecom), Daejon, Korea (e-mail: thinkbig@kt.co.kr). S. Hur, J. Lee, Y. Kim, and J. Jeong are with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. Digital Object Identifier 10.1109/JLT.2002.800797
PY - 2002/8
Y1 - 2002/8
N2 - We have analyzed the transmission performance of 8 × 10 Gb/s wavelength division multiplexing (WDM) signals due to crosstalk in cascaded conventional semiconductor optical amplifiers (SOAs). Using two different methods, the crosstalk over the whole gain bandwidth in SOAs is calculated to be 2-5 dB lower for the positive detuning. Then, transmission performance of 8 × 10 Gb/s WDM signals up to 6 × 40 km span in terms of receiver sensitivity is estimated over various transmission distance using cascaded SOAs for the positive signal wavelength displacement of 30, 40, and 50 nm. Especially for 50 nm detuning, transmission performances with and without using a reservoir channel are similar to each other. Our results suggest that SOAs can be used as an optical amplifier for displacement larger than 50 nm without using the reservoir channel.
AB - We have analyzed the transmission performance of 8 × 10 Gb/s wavelength division multiplexing (WDM) signals due to crosstalk in cascaded conventional semiconductor optical amplifiers (SOAs). Using two different methods, the crosstalk over the whole gain bandwidth in SOAs is calculated to be 2-5 dB lower for the positive detuning. Then, transmission performance of 8 × 10 Gb/s WDM signals up to 6 × 40 km span in terms of receiver sensitivity is estimated over various transmission distance using cascaded SOAs for the positive signal wavelength displacement of 30, 40, and 50 nm. Especially for 50 nm detuning, transmission performances with and without using a reservoir channel are similar to each other. Our results suggest that SOAs can be used as an optical amplifier for displacement larger than 50 nm without using the reservoir channel.
KW - Crosstalk
KW - Optical communication
KW - Optical signal processing
KW - Semiconductor optical amplifier (SOA)
KW - Wavelength division multiplexing (WDM)
UR - http://www.scopus.com/inward/record.url?scp=0036705493&partnerID=8YFLogxK
U2 - 10.1109/JLT.2002.800797
DO - 10.1109/JLT.2002.800797
M3 - Article
AN - SCOPUS:0036705493
SN - 0733-8724
VL - 20
SP - 1350
EP - 1356
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 8
ER -