High-Speed TDM–WDM Techniques for Long-Haul Submarine Optical Amplifier Systems

✍ Scribed by Makoto Murakami; Ken-ichi Suzuki; Hideki Maeda; Tetsuo Takahashi; Akira Naka; Norio Ohkawa; Mamoru Aiki

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 258 KB
• Volume: 3
• Category: Article
• ISSN: 1068-5200
• DOI: 10.1006/ofte.1997.0231

✦ Synopsis

Optical amplifier techniques have led to the installation of large-capacity submarine systems and further capacity increases seem likely. This paper reviews the FSA submarine system, which flexibly operates at both 2.5 and 10 Gbrs and offers maximum transmission capacity of 60 Gbrs for commercial use. The system configuration as well as its characteristics and upgradability will be introduced, including measurement results on time-division-Ž . multiplexingr wavelength-division-multiplexing TDM᎐WDM transmission at bit rates of 10 and 20 Gbrs using non-return-to-zero or soliton pulses. To further increase transmission capacity, TDM᎐WDM techniques that permit more than 10 Gbrs signal transmission in each data channel should be developed. Thus, pulse formats, which include non-return-to-zero, return-tozero, or soliton pulses, and dispersion allocation in transmission fibers are significant issues. We introduce and discuss our recent results from high-Ž . speed 10 to 40 Gbrs TDM᎐WDM signal transmission experiments with regard to the above aspects.