FR-103MC AUTOCORRELATOR
Specifications
- Sensitivity (PavPpk)min :10-4W2
- Resolution: ~ 1fs
- Scan Range: > 50 ps
- Wavelength Range: 420–3400nm
- Interferometric
- Polarization Insensitive (TPC)*
- Free-Space/Fiber-Coupled (/FA)
- Computer Interface
- Any pulse rep rate > 4Hz (w/CDA)
* Vertical polarization provides higher R/T ratio for pellicle beamsplitters
The FR-103MC is a low cost, palm-size interferometric Autocorrelator utilizing TPC (Two Photon Conductivity). Its collinear Michelson interferometer geometry yields interferometric autocorrelations. Ideal for OEM applications, the FR-103MC is suitable for a pulsewidth range of 5fs – 15ps. It is easyto-use with good sensitivity and excellent resolution.
Optional Fiber Adapter (/FA) renders the FR-103MC alignment free for FC fiber-coupled inputs. It can be supplied with the Computer Data Acquisition (/CDA) option, for the display and analysis of autocorrelation traces on a PC.
The FR-103MC works with any input pulse rep rate >4Hz with the /SSO and /CDA options. (The standard version is suitable for any pulse rep rate >500Hz.)
DISPERSION-FREE, HIGH RESOLUTION
Dispersion is negligible in the FR-103MC. 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-103MC 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-103MC are:
/400 420-700nm
/700 700-1200nm
/1100 1200-2200nm
/2200 2200-3400nm
SLOW SCAN OPERATION
There are two modes of operation for the delay generating // mirrors of the FR-103MC:
1. Uniform rotation ( 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 // mirror assembly speeds up beyond this range, to return quickly, for a repetition of the cycle.
Whereas the uniformly rotating // mirrors mode is suitable for typically > 100kHz rep rate lasers, the latter mode renders the FR-103MC suitable for 'real-time' autocorrelation for any rep rate > 500Hz.
This is particularly useful for kHz amplified lasers.
Fringe resolved trace of a 450fs pulse at 1552nm, w/FR-103MC operated in the SS/SP3 mode.
FIBER ADAPTER OPTION (/FA)
An optional gimbal mount with a collimator can be installed over the variable input aperture of the FR- 103MC, for easy connection of fiber-coupled beams. Factory aligned, repeated connections without a need for realignment is facilitated. The /FA is easily removable for a free-space input beam. Its standard adapter is FC [FC/PC or FC/APC]. For operation at 1550nm, a PM-DSF patchcord can be attached to the /FA. The collimator of the /FA is focus adjustable to obtain good collimation if its use at greatly different wavelengths is needed. A ƛ/2 plate holder is also provided within the /FA assembly, for the user to install one for his wavelength of operation, if needed for polarization control.
COMPUTER DATA ACQUISITION (/CDA)
A data acquisition board installed in the FR-103MC/CDA provides a USB interface with a Windows PC. 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] 420–3400nm [扫描范围] > 50 ps