OPTICS & LASERS

 

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ULTRAFAST OPTICS AND SERVICES

OPTICS

R&D Ultrafast Lasers Ltd. offers different kinds of ultrabroadband and/or dispersive dielectric mirrors utilizing our patented chirped mirror technology (US patent 5,734,503). The mirrors are optimized for different applications:

  • MCGTI optics. Low-loss, Multicavity Gires-Tournois type dispersive dielectric mirrors developed for Mirror-Dispersion-Controlled mode-locked Ti:S, Cr:LiSAF, Cr:LiSGaF,Yb:KGW,Yb:glass, etc. lasers.
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  • UBCM optics. Ultra-broadband mirror set for broadly tunable femtosecond Ti:sapphire lasers (Xwave or Xband optics).
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  • Chirped mirror optics. Chirped mirrors for linear group delay vs. frequency control in optical parametric amplifiers (OPA-s) or in white light continuum experiments in the visible and NIR.
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ULTRAFAST LASERS AND SERVICES

LASERS

R&D Ultrafast Lasers Ltd. offers three basic types of Ti: sapphire laser oscillators utilizing our patented chirped mirror technology (US patent 5,734,503). The lasers are optimized for different time resolved spectroscopic applications:

  • FemtoRose 10 PRC/MDC is developed for applications where sub-10-fs pulses around 800 nm are required. Positive dispersion of a 2 mm thick gain medium is compensated purely by chirped mirrors (MDC) or by fused silica prism pair with proper chirped mirrors (PRC).
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  • FemtoRose 20 MDC is developed for applications where sub-20-fs pulses around 800 nm are satisfactory. In this configuration, material dispersion of a 4 mm thick gain medium is compensated by a low loss negative dispersion dielectric mirror compressor with no intracavity prism pairs. The laser provides high mode-locked output powers up to 550 mW with sub-20-fs pulse duration when pumped by a 5 W Millennia laser.
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  • FemtoRose 100 MDC COMPACT is developed for applications such as imaging by nonlinear microscopy, where ~80-150 pulses at a fix wavelength around 820 nm are satisfactory. In this configuration, material dispersion of a 4 mm thick gain medium is compensated by a low loss negative dispersion dielectric mirror compressor with no intracavity prism pairs. This laser has a built in DPSS pump laser for better stability.
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  • FemtoRose 100TUN NoTouch is fully automated laser system developed for applications where tunable femtosecond laser pulses of 80-150 fs duration are required. The laser utilizes our patented (U.S. Pat. 5.734.503) ultrabroad chirped mirror (UCBM) technology for broad tuneability (690 nm to 1050 nm) without changing the cavity optics. The laser operates at a standard, 76 MHz repetition rate. The operation wavelength of the laser can set by a computer or directly by a Carl Zeiss two-photon microscope (via its ZEN software) and a RS232 interface.
    View datasheets: English, Hungarian

       

  • FemtoScope is a femtosecond pump-probe system for measuring ultrafast absorption kinetics of transparent or reflective samples. The small change in the absorption is detected by a digital lock-in amplifier system using 24 bit A/D converter.
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  • FemtoRainbow 100 OPO is a widely tunable synchronously pumped infrared OPO developed for spectroscopic (pump-probe spectroscopy, time resolved fluorescence spectroscopy) applications. The frequency conversion is made by a KTP or PPLN crystal depending on the end user’s requirement. For time correlated single photon counting experiments the use of KTP crystal is "enough" to produce UV, visible or IR photons by sum frequency or second harmonic generation. In this case the output of the OPO can be changed by tuning the pump Ti: sapphire laser. For pump-probe experiments the use of PPLN is adequate, the frequency of the generated photons can be changed by two independent ways: tuning the wavelength of the Ti:S laser or changing the period of the PPLN sample. FemtoRainbow 100 produces ~100 fs pulses.
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  • Femto-Fybre is an an all-fiber, all-normal dispersion ytterbium ring oscillator and a two-stage, all-fiber amplifier. The laser electronics includes a softwave assuring low RMS noise operation. Wavelength can be set in between 1020 to 1040 nm limits. The laser has a maximum average power of 1 W (before compression). The linearly chirped optical pulses can be compressed by a transmission grating pair or a fiber integrated hollow fiber compressor to 300 fs or 600 fs, respectively. This product is designed for multi-photon and CARS microscopy applications.
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  • FemtoCARS laser unit synchronizes optical pulses of our FemtoRose 100 TUN Notouch tuneable Ti-sapphire laser (or any other femtosecond pulse Ti-sapphire laser) and our femtosecond pulse Femto-Fybre Yb fiber amplifier. The laser system along with a Zeiss Axio Examiner LSM 7 MP microscope (product of Carl Zeiss) can be used for high spatial resolution 3D CARS or SRS microscopy.
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  • FemtoCARS system integrates all of our laser systems required for label free 3D CARS or SRS microscopy. It comprises of our FemtoRose 100 TUN Notouch tuneable Ti-sapphire laser (or any other femtosecond pulse Ti-sapphire laser), our femtosecond pulse Femto-Fybre Yb fiber amplifier and our FemtoCARS Unit. The laser system along with a Zeiss Axio Examiner LSM 7 MP microscope (product of Carl Zeiss) can be used for high spatial resolution 3D CARS or SRS microscopy.
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  • FemtoRose300 TUN LC (TM) new laser is developed for nonlinear microscopy and time resolved spectroscopy applications. It comprises a 3 W, 532 nm pump source and a control unit, which allows hand free operation. The laser operation wavelength can be directly set by a Zeiss Axio Examiner microscope (ZEN software compatible). The best of our knowledge, this is the first femtosecond pulse, broadly tunable Ti:sapphire laser on the market operating at a ~22 MHz repetition rate. The laser utilizes our patented, ultrabroadband, ion-beam sputtered chirped mirrors for building a low loss laser cavity. The low repetition rate results in a higher signal to noise ratio, a lower photo-degradation of the biological samples and a more cost efficient construction than in case of its ~80 MHz predecessors, and hence this laser construction is ideal for in vivo nonlinear microscopy applications.
    View datasheet