Application of low-cost directly modulated DBF laser transmitters in 600-km dispersion-compensated regional DWDM network

Jin Yu; Hongxing Dai; Xinhong Wang; Zhijian Zhang; Jin-Yi Pan

doi:10.1117/12.445111

16 October 2001 Application of low-cost directly modulated DBF laser transmitters in 600-km dispersion compensated regional DWDM network

Jin Yu, Hongxing Dai, Xinhong Wang, Zhijian Zhang, Jin-Yi Pan

Author Affiliations +

Proceedings Volume 4583, Metro and Access Networks; (2001) https://doi.org/10.1117/12.445111
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

Abstract

We report the experimental results in transmission of 32 DWDM channels at OC48 over standard single mode fiber of 600 km using Directly-Modulated Laser (DML) transmitters. Fiber loss is compensated with 7 cascaded Erbium Doped Fiber Amplifiers (EDFA). Large chirp of a DML transmitter imposes a transmission limit of distance at about 200 km. Dispersion Compensating Fiber (DCF) is used to recover signal from distortion due to the interaction of fiber dispersion and laser chirp. In our test bed, we achieve the successful transmission with 1.5-dB power penalty for 600 km. Our study also shows that the transmission with DML transmitter incorporated with dispersion compensation exhibits economic advantage over the one with Electric-absorption Modulated Laser (EML) based networks. In addition, the dispersion compensated network can be upgraded to OC192.

Citation Download Citation

Jin Yu, Hongxing Dai, Xinhong Wang, Zhijian Zhang, and Jin-Yi Pan "Application of low-cost directly modulated DBF laser transmitters in 600-km dispersion compensated regional DWDM network", Proc. SPIE 4583, Metro and Access Networks, (16 October 2001); https://doi.org/10.1117/12.445111

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