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CEP stable 1.6 cycle laser pulses at 1.8 μm
Bruno E Schmidt1, Andrew D Shiner, Philippe Lassonde
1Institut National de la Recherche Scientifique, Centre Energie Matériaux et Télécommunications, Varennes, QC, Canada. 3schmidtb@emt.inrs.ca
Optics Express
|April 1, 2011
Summary
Researchers developed a new method for laser pulse compression using hollow-core fiber and fused silica. This technique successfully generated ultrashort, high-energy laser pulses with stable carrier-envelope phase.
Area of Science:
- Ultrafast optics
- Nonlinear optics
- Laser physics
Background:
- Achieving ultrashort laser pulses with high energy is crucial for various scientific applications.
- Existing pulse compression techniques face limitations in energy scaling and stability.
Purpose of the Study:
- To develop a novel approach for generating high-energy, ultrashort laser pulses.
- To achieve passively carrier-envelope phase (CEP) stable pulses at a specific wavelength and repetition rate.
Main Methods:
- Combined spectral broadening in hollow-core fiber (HCF) with linear propagation in fused silica (FS).
- Utilized a white light-seeded optical parametric amplifier (OPA).
- Employed a novel pulse compression technique.
Main Results:
- Generated 1.6-cycle laser pulses with 0.24 mJ energy at 1.8 μm wavelength.
- Achieved a repetition rate of 1 kHz.
- Demonstrated passive carrier-envelope phase (CEP) stability.
Conclusions:
- The novel HCF and FS approach enables the generation of high-energy, ultrashort laser pulses.
- The technique provides passively CEP-stable pulses, beneficial for precision measurements.
- This advancement opens new possibilities in ultrafast science and technology.
