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High-Speed THz Time Domain Spectrometer


  • High-Speed Data Acquisition
  • ASOPS Scanning Technique without Mechanical Delay Unit
  • Turnkey System Operation and Intuitive, User-Friendly Software
  • Remote Control and Data Transfer Over Network

TERA-ASOPS

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Applications

  • Time-Resolved (Pump Probe) THz Spectroscopy
  • Broadband Terahertz Spectroscopy
  • Terahertz Imaging
  • Chemical Fingerprinting
  • Terhertz Combs and Ultrafast Switching
  • Stand-Off Detection
  • Material Characterization
  • Quality Inspection and Non-Destructive Testing
  • Characterization of Quantum Cascade Lasers
  • Investigation of Synchrotron Radiation
Simon Kocur
Simon Kocur
Menlo Systems
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Please note that the TERA-ASOPS is available directly from Menlo Systems, Inc. within the United States and from Menlo Systems GmbH outside the United States.
United States
Phone: +1-973-300-4490
Email: ussales@menlosystems.com
Outside United States
Phone: +49-89-189166-0
Email: sales@menlosystems.com

Features

  • All-PM Femtosecond Fiber Laser with figure 9® Technology
  • Large Total Scan Range of 10 ns
  • >1 kHz Scan Rate
  • >3 THz Bandwidth
  • >60 dB Dynamic Range
  • Transmission and Reflection Scanning Geometries
  • Fiber-Coupled THz Path for Arrangement Outside Spectrometer Housing
  • Real-Time Measurements
  • Synchronizable to External Source

With the asynchronous optical sampling (ASOPS) technique, ultrafast data sampling is no longer limited by the natural restrictions of a mechanically moving optical delay unit. Menlo Systems' novel TERA-ASOPS high-speed THz time-domain spectrometer system uses this technique to temporally scan THz pulse traces at a revolutionary high rate. At the same time, it extends the detection window to nanoseconds, pushing the spectral resolution into the region of hundreds of MHz.

TERA-ASOPS uses two ultrafast lasers operating at a locked repetition rate with a tunable difference, providing the optical pulses for THz emission and detection. The lasers feature Menlo Systems’ patented figure 9® mode locking technology for high stability and reliability. The laser pulses are delivered via optical fiber to the THz antenna modules which are of the latest standard for high-power THz wave emission. High-transmission, low-loss, polymer optics ensure easy alignment and long-term stability of the THz path. The high-speed data acquisition platform, together with the ASOPS synchronization electronics and user-friendly software, allows scanning over more than 1 kHz and measurement windows up to 10 ns. If needed, the measurement window can be reduced to a few hundred picoseconds by simply changing the mode of operation.

For seamless integration into existing experiments, the software features remote control of the spectrometer and high-speed data transfer over network. On request, additional laser output ports at 1560 nm and 780 nm can be configured. The TERA-ASOPS provides a fully functional turnkey THz time-domain spectroscopy system that combines the ASOPS technique with the latest fiber coupled THz antenna modules for maximum flexibility.

Alternatively, systems based on the OSCAT (Optical Sampling by Cavity Tuning) technique are available. Similar to the ASOPS technique, OSCAT offers the capability of high-speed imaging measurements and great flexibility of the system configuration, without mechanical delay line. Please contact Menlo Systems if you are interested in the OSCAT technique.

Included Components

Optical Components Measurement and Control Electronics
  • Two Femtosecond Laser Sources
  • Fiber-Coupled THz Emitter and Receiver Modules (TERA15-FC)
  • THz TPX Polymer Lens-Based Optical Beam Path
  • Laser Control Electronics
  • Synchronization Electronics
  • THz Electronics
  • Data Acquisition Platform, 16 Bit, 105 MS/s
  • PC and Software Package for Measurement and Data Analysis

Optional Packages

DUALCHANNEL
Additional THz Emitter/Detector Pair, Including Additional Laser Outputs, Electronics, and Software

MULTIBRANCH Additional Seed Ports
Seeding of Multiple Amplifiers with Optional Subsequent Frequency Conversion to Cover Multiple Wavelengths

Multicolor Laser Outputs
Fiber-Coupled Outputs at 1560 nm, Free-Space Outputs at 780 nm and 1560 nm

TERA Image
Automated XY Translation Stage for THz Imaging

ImageLab
Hyperspectral Image Processing Software for THz Imaging Data

TeraLyzer
Advanced Software for Thin Sample Analysis and Parameter Extraction

Reflection Guide
Quick Manual Adjustment of Transmission and Reflection Geometry

Parabolic Mirrors
Gold-Coated Off-Axis Parabolic Mirrors for Maximum THz Bandwidth

Custom Fiber Patch Cable Length
Up to 30 m

Performance Specifications
Spectral Range >3 THz
Dynamic Range >60 dB (80 dB Typ.)
Total Scan Range Up to 10 ns (Pulse-to-Pulse Distance)
Scan Rate >1 kHz
Laser Output Ports for THz Two Fiber-Coupled Ports: FC/APC, PM Fibera
Laser Output Wavelength 1560 nm
System Repetition Rate 100 MHz, Synchronizableb
  • <90 fs after 2.5 m Patch Cable
  • Different configurations are available upon request.
EnvironmentalSpecifications
Operating Voltage 110/115/230 VAC
Frequency 50 to 60 Hz
Cooling Requirements No Water Cooling Required
Operating Temperature 22 ± 5 °C
Optomechanical Setup Dimensions / Weight 900 mm x 600 mm x 200 mm / 34 kg
(35.4" x 23.6" x 7.9" / 74.8 lbs)
Control Electronics Dimensions / Weight 19" Rack Cabinet:
800 mm x 600 mm x 1800 mm / 75 kg
(31.5" x 23.6" x 70.9" / 165 lbs)

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High-Speed THz Time Domain Spectrometer

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
TERA-ASOPS Support Documentation
TERA-ASOPSHigh-Speed THz Time Domain Spectrometer
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