Rincon SS Single Shot Third-Order Cross-Correlator
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United States
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On FindLight:
since 2014
Description
The third-order cross-correlator is an innovative tool specifically designed to measure a diverse range of output parameters from ultrafast laser systems. This advanced device is essential for evaluating the contrast ratio of laser pulses, identifying pulse pedestal, pre- and post-pulses, and analyzing amplified spontaneous emission in femtosecond systems. By providing detailed insights into the third-order cross-correlation function of pulse intensity on a femtosecond scale, this cross-correlator is invaluable for aligning high power femtosecond lasers.
The operational mechanism of the cross-correlator involves converting a portion of the input pulse to the second harmonic (SH) using a nonlinear crystal. A dichroic mirror then reflects the SH while transmitting the fundamental, effectively splitting the beam into two arms of the cross-correlator. The fundamental beam arm is equipped with a retro reflector and delay-line, allowing it to be recombined with the SH after passing through the delay-line. This recombination is focused into a DKDP or BBO crystal, depending on the input pulse wavelength. The interaction between the fundamental and SH pulses within the nonlinear crystal results in non-collinear third harmonic generation (TH), which is isolated by filtering out the fundamental and SH frequencies. By measuring the TH signal as a function of the optical delay between the fundamental and SH pulses, the third-order cross-correlation function is obtained.
This cross-correlator is ideal for examining the full spectrum of output from amplified femtosecond laser systems. Its high temporal resolution across a wide window, close to 1 ns, reveals pulse features that are often overlooked, providing users with a comprehensive understanding of the quality and stability of their femtosecond laser system's output pulse parameters.
The system comes with an opto-mechanical assembly and electronics that connect via a USB interface to a PC. It is user-friendly, accompanied by a complete suite of software tools for easy data collection and analysis. This ensures that operators can efficiently monitor and assess their laser systems with precision and ease.
Rincon SS Single Shot Third-Order Cross-Correlator
Specifications |
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|---|---|
| Device Type: | Autocorrelator |
| Measurable Pulse Width: | 20 – 1000 fs |
| Wavelength Range: | 700 – 1500 nm |
| Input Polarization: | Horizontal |
| Temporal Range: | 950 ps |
| Input Energy (40-50 Fs Pulse): | < 500 uJ |
| Repetition Rate: | < 100 Hz |
Features
- Wide Wavelength Range: Operates effectively within 800-1250 nm, accommodating a variety of femtosecond laser systems.
- Precision Pulse Measurement: Capable of measuring pulse widths greater than 20 femtoseconds with a high temporal resolution of 70 fs.
- High Dynamic Range: Features a dynamic range of 1010, ensuring accurate detection of pulse characteristics.
- Extensive Temporal Range: Offers a temporal range of up to 950 picoseconds, capturing detailed pulse features.
- Low Input Power Requirement: Operates with input power less than 300 mW, making it efficient and cost-effective.
- Linear Horizontal Polarization: Designed for input polarization that is linear-horizontal, optimizing compatibility with laser systems.
- Convenient Power Supply: Utilizes a standard electric power supply of 220 V AC, 50/60 Hz ± 10%.
- Compact Design:
- Optical Unit Dimensions: 430 mm x 333 mm x 155 mm
- Control Unit Dimensions: 280 mm x 195 mm x 70 mm
- Comprehensive Software Tools: Includes user-friendly software for data collection and analysis, enhancing ease of operation.
- USB Interface: Connects easily to a PC via USB, facilitating straightforward integration and use.
- Detailed Pulse Analysis: Capable of detecting pre-pulses, post-pulses, and amplified spontaneous emission (ASE) levels for a complete analysis of laser output.
- Ideal for High Power Lasers: Suitable for alignment and evaluation of high power femtosecond laser systems.
Applications
- Contrast Ratio Measurement: Analyze the contrast ratio of laser pulses to ensure optimal performance.
- Pulse Pedestal Determination: Identify and measure the pulse pedestal for enhanced pulse clarity.
- Pre- and Post-Pulse Detection: Accurately detect and measure pre- and post-pulses in the laser output.
- Amplified Spontaneous Emission (ASE) Analysis: Evaluate ASE in femtosecond systems for quality assurance.
- Third-Order Cross-Correlation Function: Obtain detailed information on the third-order cross-correlation function of pulse intensity.
- High Power Laser Alignment: Assist in the alignment of high power femtosecond lasers for precision operations.
- Nonlinear Crystal Mixing: Utilize DKDP or BBO crystals for mixing fundamental and second harmonic pulses.
- Temporal Resolution: Achieve high temporal resolution over a long window to capture detailed pulse features.
- Data Collection and Analysis: Use user-friendly software tools for efficient data collection and analysis.
Frequently Asked Questions
The Rincon SS Single Shot Third-Order Cross-Correlator is specifically developed for measuring a wide array of output parameters from ultrafast laser systems including: contrast ratio of laser pulses, determining pulse pedestal, pre- and post-pulses, and amplified spontaneous emission in femtosecond systems.
A portion of the input pulse is converted to the second harmonic (SH) with a nonlinear crystal. A dichroic mirror reflects the SH and transmits the fundamental thus splitting the beam into the two arms of the cross- correlator. The fundamental beam arm includes a retro reflector and delay-line. After passing through the delay-line the fundamental is recombined with the SH and focused into a DKDP or BBO crystal (depending on the input pulse wavelength). Mixing the fundamental and SH pulses in the nonlinear crystal produces non-collinear third harmonic generation (TH). By filtering out the fundamental and SH frequencies, the TH can be isolated. Measuring the TH signal as a function of the optical delay between the fundamental and SH pulses gives the third order cross correlation function.
The temporal range of the Rincon SS Single Shot Third-Order Cross-Correlator is 950 ps.
The input power limit for the Rincon SS Single Shot Third-Order Cross-Correlator is <300 mW.
The resolution of the Rincon SS Single Shot Third-Order Cross-Correlator is 70 fs.