Manipulation Archive

Dispersion Compensation in Three-Photon Microscopy

3P, 1300 nm, 1700 nm Three-photon microscopy (3P) with its typical excitation wavelengths from 1300 nm to 1700 nm is significantly dependent on the "correct" pulse width. This is because the pulse width determines how many photons are simultaneously available to initiate a multiphoton resonance. The task of 3P dispersion compensation is now to manage short pulses in such a way that they can reach the sample without being broadened when passing through a microscope. 3-Photon Imaging Setup (during installation) incl....

Software Interface TCP/IP

Overview APE devices typically come with a data acquisition software and - where applicable - with a TCP/IP-based standard software interface. This makes setting up remote control for APE equipment straight forward. The software interface allows you, for example, to design your own automated measurement routines. Simply use our protocol templates for rapid configuration with familiar programming languages, including C++, C#, LabVIEW, Python, Matlab, and Ruby. Details The APE Software Interface is based on the standard TCP/IP communication protocol. This enables integration of...

Dispersion Compensation & Pulse Compression

for Microscopy Dispersion Compensation Overview Dispersion compensation is the compensation of the fact that the speed of light in a given medium is depending on the wavelength. Especially laser pulses with short pulse durations in the ultrafast range. i.e. < 10 picoseconds (ps) are stretched by the dispersion of optical material when passing through optical components such as windows or lenses. Elaborate dispersion compensation by the means of pulse compression can compensate this effect. A pulse compressor is able to compensate...

Cavity Dumper Kit

Intracavity Reduction of Pulse Repetition Rates OverviewSpecificationDownloadContactOverview Intracavity Reduction of Pulse Repetition Rates The Cavity Dumper Kit is an acousto-optical switch that can be integrated into the cavity of a mode-locked laser system for the reduction of the system’s pulse repetition rate. Unlike pulse pickers the intracavity operation increases the pulse energy to a multiple of the energy that is reached by the normal mode-locked pulses of the system. This makes it particularly relevant for non-linear optical processes like SHG and THG. The...

pulseSelect

Reducing the Repetition Rate of Mode-locked Lasers with a Pulse Picker OverviewSpecificationDownloadContactOverview Suitable for fs and ps Mode-locked Lasers pulseSelect is an acousto-optical pulse picker, developed for the special demands of femtosecond laser technology. Pulse distortion is minimized by a low dispersive design and the use of reflective optics. High repetition rates and high contrast rates are achieved by using acousto-optical elements. The pulse repetition rate can be reduced by an adjustable internal frequency divider or by external triggering. Pulse picking with low...

scanDelay

Precision Optical Delay Line with High Scanning Speed OverviewSpecificationDownloadContactOverview Precision Optical Delay Line with High Scan Speed ScanDelay, an optical delay line, allows the introduction of a well-defined time delay into an optical path. The delay is periodically controlled by a fast scanning shaker at a frequency of up to 20 Hz. The heart of APE's optical delay line series is a special linear translation stage that is supplied together with appropriate control and drive electronics. The linear drive has been designed especially for...

pulseSlicer

Spectrum Slicer: Narrowing the Bandwidth of Pulsed Lasers by Spectral Cutting OverviewSpecificationDownloadContactOverview Narrowing the Spectral Bandwidth of Pulsed Lasers by Spectral Cutting with a Spectrum Slicer / Laser Monochromator The principle task of the spectrum slicer (or laser monochromator) pulseSlicer is to cut out a very narrow spectral part of an ultra-short laser pulse. This function is similar to a band pass filter at a first glance. For example, in the spectral domain this could mean the narrowing of the spectral width...

Dispersion Compensation

Pulse Compression & Dispersion Compensation with femtoControl for Femtosecond Pulses OverviewSpecificationDownloadContactOverview Pulse Compression & Dispersion Compensation for Microscopy femtoControl is a motorized dispersion compensation unit for optimization of the duration of femtosecond laser pulses. A compact boxed system for the spectral range of Ti:Sa lasers is available off the shelf. For applications that require extreme GDD compensation, whether in 2P or 3P microscopy, a range of customer specific solutions are available. Femtosecond pulses which pass through any kind of optical material experience dispersion that...

EOM Electro-Optic Modulator

Manipulating the Intensity of Laser Beams OverviewSpecificationDownloadContactOverview Controlling Light by EOM - Electro-Optic Modulator APEs external Electro-optic Modulator (EOM) is an accessory for laser sources based on APEs long standing experience in designing optoelectronics. It is a dedicated modulator that was designed to be used in Stimulated Raman Scattering (SRS) and other applications that require an amplitude modulated signal. The external EOM can be used with most CW or mode-locked lasers, or synchronously pumped OPOs in the VIS to NIR range (as...

AOM Acousto-Optic Modulator

Manipulating the Intensity of Laser Beams OverviewSpecificationContactOverview Controlling Laser Light by Acousto-optic Modulator, also Called Bragg Cell A significant part of APE's products work with specially configured AOMs and high frequency drivers adapted to the respective application. Dependig on the application (e.g. OPO's, CARS/SRS, customized ultrafast laser setups) we design optimized AOM packages. Our modulators are optimized for ultra-short laser pulses and fast switching. Multiple channels and synchronized switching is possible. Please note that our AOM packages are only available for APE-based systems. The acousto-optic...

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