Performances of a widely pulsewidth-tunable multiwavelength pulse generator by a single SOA-based delayed...

Area of Science:

• Photonics and Optical Engineering
• Semiconductor Devices
• Signal Processing

Background:

• Traditional optical pulse generation methods face limitations in flexibility and control.
• Optimizing optical signal transmission requires adaptable pulse shaping capabilities to compensate for dispersion.

Purpose of the Study:

• To investigate the performance of a multiwavelength optical pulse generator based on a semiconductor optical amplifier (SOA)-based delayed interferometric switch.
• To demonstrate the controllability of output waveforms and pulsewidths for enhanced signal transmission.

Main Methods:

• Utilizing a single semiconductor optical amplifier (SOA) in a delayed interferometric switch configuration.
• Investigating the generation of multiwavelength clock pulse trains synchronized with an optical clock.
• Analyzing the impact of time delay and phase offset adjustments on output waveform characteristics.

Main Results:

• Successfully generated multiwavelength clock pulse trains synchronized with an optical clock.
• Demonstrated precise control over output waveform and pulsewidth by adjusting time delay and phase offset.
• Verified that pulsewidth tuning optimizes transmission characteristics for various cumulative dispersion values.

Conclusions:

• The SOA-based delayed interferometric switch provides a versatile platform for generating controllable multiwavelength optical pulses.
• Optimized pulsewidth tuning significantly improves transmission performance compared to conventional signals, especially over lines with varying dispersion.