YLPF-FlexO 40 fs, >50 nJ
Femtosecond Laser with Programmable Pulse Shaper
IPG Photonics’ YLPF-FlexO femtosecond laser offers unprecedented flexibility in choosing parameters optimal for the application. The YLPF-FlexO laser provides pulses as short as sub-40 fs with >50 nJ per pulse at 11 MHz repetition rate. The laser system incorporates IPG’s proprietary pulse shaping technology that enables users to choose a desired temporal pulse shape, from the shortest near-transform-limited pulse to a variety of programmable shapes. Shaped time-domain profiles and multi-pulse waveforms within +/- 3 ps time window can be created via spectral phase and amplitude shaping.
Features
| Pulse Duration from sub-40 fs to 4 ps |
| Peak Power > 1 MW |
| Programmable Pulse Shape : Transform-limited or Shaped Pulses on Demand |
| Push-button Dispersion Compensation |
| YLPF-FlexO-50 | |
| Central Wavelength*, nm | 1055±15 |
| Spectral Width*, nm | >80, typ. 95 |
| Average Power, mW | >550 |
| Pulse Energy, nJ | >50 |
| Repetition Rate, MHz | 11± 0.5 |
| Temporal Pulse Shape | Programmable |
| Programmable Device | 2D LCOS Spatial Light Modulator |
| Pulse Control Variables** | Phase and amplitude* |
| Transform Limited Pulse Duration (FWHM), fs | <50, typ. sub-40 |
| Programmable Time Range***, ps | >6 |
| Polarization | Linear, 100:1 |
| Beam Quality |
M2<1.2 |
| Beam Diameter****, mm | 3±0.3 |
* The central wavelength and width are determined at -10dB level.
** Use diffractive shaping to enable phase-only, amplitude-only, and phase-and-amplitude control.
*** FWHM of the second-harmonic generation (SHG) intensity profile as a function of shaper-assisted time delay.
**** Beam diameter at the laser output, measured by the knife-edge method, 84% level.
| Console Dimensions (W × D × H), mm | 448 × 580 × 132 |
| Optical Head Dimensions (W × D × H), mm | 178 × 359 × 118 |
| Console Weight, kg | 26 |
| Optical Head Weight, kg | <7 |
| Total Weight, kg | <33 |
| Supply Voltage, VAC | single phase, 110-240, 50-60 Hz |
Applications
| Bio-imaging & Nonlinear Microscopy |
| Multiphoton Polymerization & 3D Printing |
| Ultrafast Spectroscopy |
| Terahertz Generation |
| Optogenetics |
| Coherent Control |
Figure 1: Typical output spectrum of YLPF-FlexO laser. In the time domain, the spectrum supports pulses as short as 36.2 fs FWHM (Fourier-transform limit).
Figure 2: Autocorrelation trace measured after MIIPS-enabled dispersion compensation. The experimental FWHM of 38.1 fs is only 5% higher than the transform-limited (TL) pulse duration. The conversion factor of 1.34 follows from the shape of the laser spectrum.
Figure 3: Measured autocorrelation profiles for compressed and pre-chirped pulses. The second-order dispersion, known also as linear chirp, is applied by the built-in programmable pulse shaper. The logarithmic vertical scale is used to highlight both peak power and pulse duration trends. The ACF FWHM scales from 51 fs to 2,100 fs.
Figure 4: Selective two-photon excitation via phase-only shaping. The third-order dispersion of 300,000 fs3 is programmed at various wavelengths, λ0, across the laser spectrum to diminish the two-photon transitions other than to λ0/2.
YLPF-FlexO Optical Head
YLPF-FlexO Rack Unit
