Multiwavelength 25-GHz picosecond pulse generation with phase modulation and double-side Mamyshev reshaping

Area of Science:

• Photonics and Optical Engineering
• Ultrafast Lasers
• Nonlinear Optics

Background:

• Generating high-speed optical pulses is crucial for advanced communication and measurement systems.
• Existing methods often face limitations in terms of cost, complexity, or power efficiency.
• The demand for multiwavelength and high-repetition-rate pulse generation continues to grow.

Purpose of the Study:

• To demonstrate a simple, robust, and cost-effective method for generating high-speed multiwavelength picosecond optical pulses.
• To investigate the power efficiency of the proposed method at high repetition rates.
• To achieve wavelength-tunable pulse generation with potential for temporal multiplexing.

Main Methods:

• Chirp compression of phase-modulated light.
• Nonlinear pulse compression and reshaping using a double-side Mamyshev reshaper.
• Experimental validation of pulse generation at 25 GHz repetition rate and ~2 ps pulse width.

Main Results:

• Successful generation of wavelength-tunable picosecond optical pulses at 25 GHz.
• Demonstration of power efficiency at 25 GHz repetition rate.
• Simultaneous generation of optical pulses on four different wavelengths.
• Achieved temporal multiplexing capability to 100 GHz.

Conclusions:

• The developed method offers a simple, robust, and cost-effective solution for generating high-speed multiwavelength picosecond optical pulses.
• The technique is power-efficient at high repetition rates (25 GHz), making it suitable for practical applications.
• The ability to generate simultaneous multiwavelength pulses with potential for temporal multiplexing opens new avenues in optical communications and signal processing.