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울트라펄스측정시스템-FROG 스캔

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FROG 스캔 극초단 레이저 펄스 측정 시스템 

FROG Scan is the best value in Ultrafast Laser Pulse Measurement

Frog 스캔은 고객의 펄스 측정의 모든 필요를 신속히 끝내도록 디자인되도록 개발된 펄스측정
시스템이며 , 펄스 측정 파장은 450 nm 에서 1800 nm이고 12fs 에서 10’s picosecond 까지
측정 범위가 제공되며 ,비디오Frog 스캔 소프트웨어에서 4Hz 가까운 실시간 펄스 측정을
할수 있다. (32 x 32 grid, ~115 spectra/second, 1.8 Hz for 64 x 64 grid)

Shown on right is a picture of the FROG Scan. Your laser beam enters from the right through an alignment iris and part of the beam exits through another external iris. A beam splitter sends one pulse replica though a fixed delay. The other replica is sent to the high-speed, high accuracy optical delay line. Both beams are focused into a second harmonic generation crystal. The SHG signal from the pulse overlap region is spectrally resolved using an Ocean Optics USB4000 or USB2000+ spectrometer that can be changed as your pulse measurement needs change.

Do not be fooled by its simplicity, however. Because of your seamless ability to change the time span of a scan, a single configuration of our FROG Scan can replace 3 or more competing FROG devices. The added dynamic range of the 16-bit data acquisition allows highly structured pulses and high order phase distortions to be measured.

Our device can also accomplish measurements competing devices cannot do. For example, just try to measure a 20 fs laser pulse chirped to 400 fs with competing FROG devices. You can’t. The combination of the pulse length and the bandwidth cannot be handled by any device that uses the SHG crystal as the dispersive element. FROG Scan makes such a measurement easy. Time scan ranges can be changed on the fly, and wavelength too–all by software control. USB connections to your computer are all that is required. With software included, it is the best value available for pulse measurement.


Specifications FROG Scan

Wavelength Range                                     450 nm -1800 nm

Pulse Length Range                                   ~ 12 fs - 10 ps

Temporal Range                                          30 ps

Delay Increment                                           1 fs

Spectral Resolution                                     0.2 nm – 1 nm

Spectral Range                                            100 nm – 600 nm

Pulse Complexity                                         TBWP > 50

Intensity Accuracy                                       2%

Phase Accuracy                                           0.01 radians

Realtime Sensitivity (IpeakIave)                     4 W2

Averaged Sensitivity (IpeakIave)                    0.1 W2

Input Beam Size                                          2 mm – 4 mm

Nominal Polarization                                  Horizontal

Acquisition Speed                                       > 3 Hz 32 x 32 grid, 1.8 Hz 64 x 64 grid

Spectra required for measurement           number in grid

Software                                                        VideoFROGscan – Included in price

 

Specifications FROG Scan Ultra

 

Wavelength Range                                     450 nm – 3600 nm

Pulse Length Range                                   ~ 12 fs - 10 ps

Temporal Range                                          30 ps

Delay Increment                                           1 fs

Spectral Resolution                                     0.05 nm – 1 nm

Spectral Range                                            100 nm – 600 nm

Pulse Complexity                                         TBWP > 50

Intensity Accuracy                                       2%

Phase Accuracy                                           0.01 radians

Realtime Sensitivity (IpeakIave)                     0.04 W2 (Requires QE65000 for better than 4 W2 sensitivity)

Averaged Sensitivity (IpeakIave)                    0.001 W2 (Requires QE65000 for better than 4 W2 sensitivity)

Input Beam Size                                          2 mm – 4 mm

Nominal Polarization                                  Horizontal

Acquisition Speed                                       > 3 Hz 32 x 32 grid, 1.8 Hz 64 x 64 grid (USB2000+, other spectrometers are slightly slower)

Spectra required for measurement           number in grid

Software                                                        VideoFROGscan – Included in price

 

* The complete range cannot be covered with a single configuration.  Spectrometer ranges and resolution determine the wavelength range and the longest transform limited pulse that can be measured, respectively.  Crystal and spectrometers are user/field changeable.  Spectrometer changes are automatically recognized by the software.  For some of our pre-configured FROG Scan systems click here.