Amplification of advanced modulation formats with a semiconductor optical amplifier cascade

Area of Science:

• Optical networking
• Telecommunications engineering

Background:

• Optical metro and access networks are converging, increasing coverage area.
• This convergence necessitates the use of efficient optical amplifiers.
• Semiconductor optical amplifiers (SOAs) are broadband, cost-effective, and tunable across 1250-1600 nm.

Purpose of the Study:

• To investigate the suitability of SOAs for amplifying advanced modulation formats in converged networks.
• To demonstrate the feasibility of achieving high-capacity optical paths using SOAs.

Main Methods:

• Utilizing a cascade of at least four semiconductor optical amplifiers (SOAs).
• Amplifying signals encoded with advanced modulation formats including BPSK, QPSK, 8PSK, and 16QAM.

Main Results:

• Successful amplification of advanced modulation signals was achieved using a cascade of SOAs.
• The proposed SOA-based amplification enables high-capacity optical paths.

Conclusions:

• Cascaded SOAs are effective for amplifying advanced modulation formats in converged metro-access networks.
• This approach supports the development of Tbit/s capacity optical paths, leveraging the cost-effectiveness and broadband nature of SOAs.