High Energy Femtosecond Optical Parametric Chirped Pulse Amplification Systems

High Energy Femtosecond OPCPA Systems. High Energy Femtosecond Optical Parametric Chirped Pulse Amplification Systems. High Energy Femtosecond Optical Parametric Chirped Pulse Amplification (HE-FOPCPA) systems are advanced laser technologies used to generate extremely high-energy pulses with femtosecond durations. These systems rely on optical parametric amplification, where a high-intensity pump laser is used to transfer energy to a signal pulse, resulting in amplification without traditional laser medium limitations. Femtosecond pulses refer to light bursts that last on the order of 10^-15 seconds, allowing for highly precise, time-resolved measurements. The chirped pulse amplification technique involves stretching the pulse temporally, amplifying it, and then compressing it to restore its ultra-short duration. By using optical parametric processes, HE-FOPCPA systems can operate across a broad range of wavelengths, including infrared and visible spectra. This flexibility makes them useful for scientific research, including in fields like ultrafast spectroscopy, material science, and medical imaging. Overall, these systems enable the generation of high-energy, ultra-short pulses that can provide unprecedented precision for various applications.

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High Energy Femtosecond Optical Parametric Chirped Pulse Amplification Systems
High Energy Femtosecond Optical Parametric Chirped Pulse Amplification Systems

Tags: Broadband CARS and SFGFemtosecondfemtosecond laserFemtosecond pump-probe spectroscopyHigh Energy Femtosecond laserHigh Energy Femtosecond OPCPA SystemsHigh Energy Femtosecond Optical Parametric Chirped Pulse Amplification SystemsHigh Energy LaserHigh harmonic generationNd:YAG Picosecond Pump Laser systemNonlinear spectroscopyOptical Parametric Chirped Pulse AmplificationWake field particle accelerationX-ray generation

Here’s an example specification for a High Energy Femtosecond Optical Parametric Chirped Pulse Amplification (HE-FOPCPA) system:

Specification for HE-FOPCPA System

  1. Central Wavelength:
    • Signal Wavelength: 800 nm (Adjustable range: 600 nm – 1200 nm)
    • Idler Wavelength: 1200 nm – 2400 nm
  2. Pulse Duration:
    • FWHM (Full Width Half Maximum): < 30 fs
    • Repetition Rate: 1 kHz – 10 kHz (Adjustable)
  3. Peak Energy:
    • Signal Pulse Energy: > 10 mJ per pulse
    • Idler Pulse Energy: > 5 mJ per pulse
  4. Amplification:
    • Peak Power: > 100 GW (depending on energy and pulse duration)
    • Gain Efficiency: > 50%
  5. Pump Laser:
    • Wavelength: 1050 nm (Diode-pumped solid-state laser)
    • Pulse Duration: 100 fs
    • Peak Power: > 100 kW
    • Energy per Pulse: 30 mJ – 50 mJ
    • Repetition Rate: 1 kHz

And

  1. Temporal Characteristics:
    • Pulse Compression: < 30 fs (after amplification)
    • Chirped Pulse Amplification (CPA) Technique for pulse stretching, amplification, and compression.
  2. System Stability & Control:
    • Temporal Jitter: < 50 fs
    • Spatial Mode Quality: M² < 1.2
    • Polarization: Linear polarization with control options
  3. Beam Quality:
    • Beam Divergence: < 2 mrad
    • Beam Size (at focus): < 5 µm
    • Beam Pointing Stability: < 10 µrad
  4. Environmental Requirements:
    • Operating Temperature: 15°C – 30°C
    • Humidity: 30% – 70% non-condensing
    • Power Supply: 220V, 50-60 Hz (or customizable based on location)
  5. Safety Features:
    • Interlock system for laser operation
    • Remote diagnostics and monitoring system
    • Laser safety goggles with wavelength-specific filters for all operators
  6. Applications:
    • Ultrashort time-resolved spectroscopy
    • High-resolution imaging
    • THz radiation generation
    • Laser material processing
    • Nonlinear optics research

This example provides key parameters that a typical HE-FOPCPA system may have, but they can be adjusted depending on the specific needs and applications of the user.

Ultrafast Spectroscopy: HE-FOPCPA systems enable precise time-resolved measurements of molecular dynamics and chemical reactions on femtosecond timescales.

Material Science: Used for studying ultrafast processes in materials, including electron dynamics, phase transitions, and lattice vibrations.

High-Resolution Imaging: Provides improved imaging techniques for biological and physical samples with high temporal and spatial resolution.

THz Radiation Generation: These systems are used to generate and manipulate terahertz radiation, useful for spectroscopy and imaging in a wide range of fields.

Laser Material Processing: They enable highly precise laser ablation, cutting, and micromachining of materials, offering minimal heat damage.

Nonlinear Optics Research: They are essential for exploring nonlinear interactions, like high-harmonic generation, and for developing novel laser sources.

Medical Imaging and Diagnostics: Femtosecond pulses improve the quality of imaging techniques such as optical coherence tomography for better diagnostics.