Terahertz Optical Sampling System TAS7400TS
Affordably priced multi-purpose terahertz spectroscopy system with accurate measurement
The system uses two channels of ultra short pulse lasers (1.55 μm) with either biased output (for THz generation) or signal input (for THz detection). Based on Advantest's TAS7500TS high-end terahertz spectroscopy system, the TAS7400TS offers accurate measurement at a lower price.
Specifications
System configuration
Dual repetition rate synchronized fiber laser (for THz generation and detection), laser driver, synchronizer, data correction, and analysis PC
Excitation Laser
Center wavelength | 1550 nm |
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Output power | ≥20 mW (Option: Max. 50 mW) (*1) |
Pulse width | ≤50 fs (Using 1.5 m fiber) (*1) |
Repetition rate | 50MHz |
Optical output port | For THz generation: 1 port, For THz detection: 1 port |
Measurement Specifications
TAS7400TS
Measurement method | Terahertz optical sampling method (phase modulation method) | |
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Time resolution | 2fs | |
Frequency resolution | 1.9GHz | 7.6GHz |
Scan range | 524ps | 131ps |
Throughput | 200ms/scan | |
Frequency accuracy | ±10 GHz (at 1.41 THz) (*1) |
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At temperatures of 23°C±5°C
(TAS7500TS)
Measurement method | Terahertz optical sampling method (phase modulation method) | ||
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Time resolution | 2fs | ||
Frequency resolution | 3.8GHz | 7.6GHz | 61.0GHz |
Scan range | 262ps | 131ps | 16ps |
Throughput | 16ms/scan | 8ms/scan | 1ms/scan |
Frequency accuracy | ±10 GHz (at 1.41 THz) (*1) |
General Specifications
Analysis unit | Measurement unit | |
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Size | 430(W)×540(D)×330(H) mm | 430(W)×240(D)×220(H) mm |
Weight | 30kg or less | 14kg or less |
Basic Configuration
Terahertz Source Module
TAS1110 (Standard Type: 0.1 - 4 THz) / TAS1120 (Low frequency type: 0.03 - 2 THz)
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Easy to use all-in-one THz source; a photoconductive antenna and a hyper-hemispherical silicon lens are included in a fiber pigtailed compact housing.
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THz waves are generated by introducing 1.55 μm ultra short laser pulses.
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Suppression of THz wave amplitude variation caused by fluctuations of temperature using an on-state current monitor and a thermistor embedded in the bias circuit.
Intended purpose
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THz time-domain spectroscopy
Terahertz Source Module
TAS1130 (Broadband type: 0.5 - 7 THz)
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Cherenkov type THz wave source module utilizing non-linear optical crystal (LiNbO3) waveguide.
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Achieves excellent spectral flatness compared to a conventional photoconductive antenna (PCA) and significantly lower spectral absorption compared to using bulk crystals.
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Compact and easy-to-operate: simply introduce excitation light into the input pigtail fiber.
Intended usage
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Broadband THz wave source for time-domain spectroscopy
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Difference frequency generation of THz waves
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THz frequency comb generation
Terahertz Detector Module TAS1230
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Easy to use all-in-one THz detector; a photoconductive antenna and a hyper-hemispherical silicon lens are included in a fiber pigtailed compact housing.
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THz waves are sampled by introducing 1.55 μm ultra short laser pulses.
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Built-in transimpedance (current-voltage transfer) amplifier with 500 kHz bandwidth makes for a simpler measurement system.
Specifications
Terahertz Source Module TAS1110/1120/1130
Items | Specification | ||
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TAS1110 (Standard type) | TAS1120 (Low frequency type) | TAS1130 (Broadband type) | |
Generation method | Photoconductive antenna | Cherenkov type THz wave generation using LiNbO3 waveguide | |
Frequency range(*) | 0.1 to 4THz | 0.03 to 2THz | 0.5 to 7THz |
Input Optical Fiber Connector | φ3mm 1550nm Polarization maintaining fiber (Length: 1.5 m) | ||
Size (without fiber pigtail) | 55mm × 20mm × 20mm | 43mm × 24mm × 21mm |
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*When using the TAS1230 detector module to measure samples with the TAS7500TS at 7.6GHz
Terahertz Detector Module TAS1230
Items | Specification |
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Detection method | Photoconductive antenna |
Dynamic range (Peak level)(*) | ≥60dB (Generator: TAS1110, TAS1130) ≥50dB (Generator: TAS1120) (at frequency resolution: 7.6 GHz) |
TIA sensitive | 9.7 × 106 V/A |
TIA bandwidth | 500 kHz (-3 dB) |
Input Optical Fiber Connector | φ3 mm 1550 nm Polarization maintaining fiber (Length: 1.5 m) |
Size (without fiber pigtail) | 55 mm × 20 mm × 20 mm |
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*The peak level frequency varies in each system, and the dynamic range on each frequency varies in each system.
- Terahertz optical sampling analysis system
- TAS7500TS
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TAS7400TS
- TAS7400TS High Frequency Resolution Option
- Optical set (optional)
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- TAS7500SU
- TAS7500SL
- TAS7400 Series detail information
- TS9001 TDR System
- About Terahertz Waves
- Spectroscopic Analysis: Broad Application Coverage
- Product Catalog