Variable gain semiconductor optical linear amplifier (OLA)

W. Craig Michie; Tony Kelly; Andy Tomlinson; Ivan Andonovic

doi:10.1117/12.460477

4 December 2002 Variable Gain Semiconductor Optical Linear Amplifier (OLA)

W. Craig Michie, Tony Kelly, Andy Tomlinson, Ivan Andonovic

Proceedings Volume 4871, Semiconductor Lasers and Optical Amplifiers for Lightwave Communication Systems; (2002) https://doi.org/10.1117/12.460477
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

The semiconductor optical amplifier (SOA) is a versatile component that can be deployed to meet the expanding applications associated with the introduction of additional functionalities at the optical level in wavelength division multiplexed systems. The future network requires low cost, small footprint, directly controllable amplification throughout the different application layers from long haul through to metro; the intrinsic size and integration capability advantages will ensure that the SOA plays a key role in this evolution. In multi-wavelength gating/amplification applications the gain dynamics, oscillating at timescales comparable to that of the data which is being amplified, introduce issues of pattern dependent waveform distortion (patterning) in single channel, and inter-channel cross-talk in multi-wavelength cases which require management through careful SOA design and understanding of the network application scenarios. In this paper, an optical linear amplifier (OLA) architecture with the unique capability to provide variable gain whilst maintaining linear operation at high output saturation powers will be described. Initial characterisation results for the OLA will be presented.

Citation Download Citation

W. Craig Michie, Tony Kelly, Andy Tomlinson, and Ivan Andonovic "Variable Gain Semiconductor Optical Linear Amplifier (OLA)", Proc. SPIE 4871, Semiconductor Lasers and Optical Amplifiers for Lightwave Communication Systems, (4 December 2002); https://doi.org/10.1117/12.460477

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KEYWORDS

Optical amplifiers

Networks

Multiplexing

Semiconductor optical amplifiers

Channel projecting optics

Laser resonators

Modulation

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