Widely time-dispersion-tuned fiber optical oscillator and frequency comb based on multiple nonlinear processes

Area of Science:

• Nonlinear optics
• Fiber optics
• Laser physics

Background:

• All-fiber optical oscillators are crucial for various applications requiring tunable light sources.
• Nonlinear optical processes offer pathways to generate new wavelengths and control light properties.

Purpose of the Study:

• To present and characterize an all-fiber optical oscillator leveraging multiple nonlinear processes.
• To demonstrate wavelength tuning capabilities and the generation of a tunable optical frequency comb.

Main Methods:

• Utilizing stimulated Raman scattering, broad-band and narrow-band optical parametric amplification.
• Employing a time-dispersion technique for wavelength tuning.
• Exploiting cascaded four-wave mixing for optical frequency comb generation.

Main Results:

• Experimental characterization of the all-fiber optical oscillator.
• Achieved wavelength tuning over a 160 nm range using the time-dispersion technique.
• Realization of a fast tunable optical frequency comb.

Conclusions:

• The presented all-fiber optical oscillator demonstrates versatile wavelength tuning capabilities.
• The integration of multiple nonlinear processes enables advanced functionalities like tunable frequency combs.
• This work contributes to the development of compact and efficient tunable light sources for scientific and technological applications.