A novel transmitter architecture for combined baseband data and subcarrier-multiplexed control links using differential Mach-Zehnder external modulators

Abstract:

We propose, analyze, and demonstrate a novel transmitter architecture for links that support transmission of base-band data and subcarrier multiplexed control channels. The architecture utilizes a differential external integrated-optic modulator to electrooptically combine the baseband and subcarrier multiplexed data onto an optical carrier. An analytical model is presented that allows optimization of the SNR of the received baseband and control data channels based on modulation parameters. This optimization is based on tradeoffs that result when the baseband and subcarrier channel are combined using a nonlinear modulator transfer function. We experimentally demonstrate a link based on this architecture with 2.5-Gb/s baseband and 100-Mb/s control data multiplexed on a 5.5-GHz subcarrier. Analytical and measured experimental results are compared and are shown to be in good agreement.

Año de publicación:

1997

Keywords:

• Subcarrier multiplexing
• Optical modulation
• Optical networks
• Optical communication

Fuente:

scopus