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All-optical power equalization based on a two-section reflective semiconductor optical amplifier.

Lirong Huang¹, Wei Hong, Guiying Jiang

¹Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China. lrhuang@mail.hust.edu.cn

|March 14, 2013

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This study introduces a simple all-optical power equalization scheme using a two-section reflective semiconductor optical amplifier (RSOA). The novel design effectively reduces power fluctuations between data packets, improving signal quality in optical communication systems.

Area of Science:

Optical Engineering
Telecommunications Technology
Semiconductor Devices

Background:

Packet-to-packet power fluctuation is a significant challenge in optical communication systems.
Existing power equalization methods often involve complex setups or degrade signal quality.
Reflective semiconductor optical amplifiers (RSOAs) offer potential for integrated optical functions.

Purpose of the Study:

To present a simple, all-optical power equalization scheme.
To investigate the mechanism of a two-section RSOA for power equalization.
To analyze the performance dependence on operational and structural parameters.

Main Methods:

Utilizing a single two-section reflective semiconductor optical amplifier (RSOA).
Implementing a double optical path and non-uniform injection current density.

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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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Quasi-light Storage for Optical Data Packets

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Published on: February 6, 2014

Biasing the RSOA to achieve cascaded semiconductor optical amplifier (SOA) functionality (preamplifying, gain-saturated, and third SOA).

Main Results:

Successfully suppressed pattern effect and reduced packet-to-packet power fluctuation.
Maintained high signal quality after power equalization.
Demonstrated that the two-section RSOA functions effectively as three cascaded SOAs under proper biasing.

Conclusions:

The proposed all-optical power equalization scheme based on a two-section RSOA is simple and effective.
The non-uniform current density and double optical path are key to suppressing pattern effects and reducing power fluctuations.
This approach offers a promising solution for improving optical communication system performance.