FR-103TPM AUTOCORRELATOR
Specifications
- Sensitivity (PavPpk)min :10-4W2
- Resolution: ~ 1fs
- Scan Range: > 50 ps
- Wavelength Range: 700–2200nm
- Interferometric
- Polarization Insensitive (TPC)*
- Computer Interface (/CDA)
- Any pulse rep rate > 4Hz (w/CDA)
* Vertical polarization provides higher R/T ratio for pellicle beamsplitters
The FR-103TPM is a compact autocorrelator for Two Photon Microscopy applications. It can be introduced into the beampath of the laser without affecting optical alignment. The NL photosensor of the FR-103TPM can be placed in any location of the optical set-up, in particular at the position of the sample. Its Computer Data Acquisition (/CDA) option provides an interface (USB), for the display and analysis of autocorrelation traces on a Windows PC.
The standard FR-103TPM works with any input pulse rep rate > 500Hz. [ This can be extended to any rep rate > 4Hz, by the addition of /SSO and/CDA options.]
DISPERSION-FREE, HIGH RESOLUTION
Dispersion is negligible in the FR-103TPM. Using high reflective metallic-coated optics [the only transmissive element is an ultrathin (<1um) pellicle beamsplitter], an unprecedented resolution of ~1fs is attained.
With its high resolution, the FR-103TPM is capable of measuring pulsewidths as low as ~ 5fs.
ROTATING PARALLEL (//) MIRROR ASSEMBLY
Rapid scan, periodic optical delay is introduced by means of a parallel (//) mirror assembly.* This unique mechanism results in uniform and error-free delay generation with interferometric resolution.
* Z.A.Yasa and N.M.Amer, Optics Commun., V36, 406 (1981).
NONLINEAR PHOTOSENSOR MODULES
The NL detector module selections for the FR-103TPM are:
/700 700-1200nm
/1100 1200-2200nm
SLOW SCAN OPERATION
There are two modes of operation of the FR-103TPM:
1. Uniform rotation of // mirrors( with a refresh rate typically ~2Hz)
2. Controlled movement such that the // mirrors slow down greatly (4 selectable speeds ) over a period when the pulses on the two arms of the Michelson Interferometer set up are overlapping. The // mirrors speed up beyond this range, to return quickly, for a repetition of the cycle. Whereas the uniformly rotating // mirrors is suitable for typically > 100kHz rep rate lasers, the latter mode renders the unit suitable for 'real-time' autocorrelation for any rep rate > 500Hz. This is particularly useful for kHz amplified lasers.
COMPUTER DATA ACQUISITION (/CDA)
A data acquisition board is installed in the FR-103TPM/CDA, provides a USB interface with any PC w/ Windows OS. Its associated software allows traces to be displayed, analyzed [averaged and/or fit with typical pulseshapes (Gaussian and Sech2 )] or saved.
商品属性 [最小精度] ~ 1fs [波长范围] 700–2200nm [扫描范围] > 50 ps