ASOPS
(Asynchronous Optical Sampling System)
Asynchronous Optical Sampling System
In time-resolved measurements an ultrafast pulse triggers a reaction and a second pulse takes a snapshot of the induced change.
By shifting the arrival time of the probe pulse with respect to the pump pulse the stimulated process can be followed in time.
The asynchronous optical sampling technique allows high-speed scanning over some nanoseconds of time delay without a mechanical delay line.
The ultrafast lasers delivering the pump and probe pulses are locked together at a tunable repetition rate difference.
The lasers can be also locked to the same repetition rate value and by shifting the relative phase between the laser pulses, the system will allow measurements in a reduced time window of some 100 ps.
Switching between the two modes of operation can be done at the touch of a button.
Features
- Faster Data Acquisition Times
- Increased Temporal Measurement Windows
- No Moving Mechanical Components (Improved Beam Pointing Stability, Increased Scanning Speed)
- ASOPS Control Software
Full Control of the ASOPS Electronics via Graphical User Interface, XML-RPC Interface Enabling Remote Control, Includes PC and Counter
- Flexible Platform
- Fiber-coupled Design
- Two-color Operation
- Extended Time Windows
- Mechanical-free Scaning
Key Specifications
- Wavelength TWIN: 1560 nm DUAL COLOR 780 nm or 1560 nm
- Time Measurement Window 4 ns or 10 ns
- Repetition Rate 250 MHz or 100 MHz
Applications
- Two-Color Pump-Probe Spectroscopy
- Time-Domain THz Spectroscopy
- Material Characterization
Options
- VARIO User-Defined Repetition Rate
Factory-set value selectable in the 50-250 MHz range
- MULTIBRANCH Additional Seed Ports
Seeding of multiple amplifiers with optional subsequent frequency conversion to cover multiple wavelengths
- CUSTOM WAVELENGTHS
- Yb Systems (1040nm, 520nm)
- Er Systems (1560nm, 780nm)
- Hybrid Systems
Specifications
ASOPS Twin | ASOPS Dual Color | |
| Repetition Rate | 250 MHz | 100 MHz |
| Repetition Rate Offset Tuning Range | Δ f = -10 kHz .. +10 kHz, in steps of 10⁻⁵ Hz | Δ f = -10 kHz .. +10 kHz, in steps of 10⁻⁵ Hz |
| Time Measurement Window | 4 ns | 10 ns |
| Scan Duration 1 / Δ f * | 0.1 ms @ 10 kHz offset, 1 s @ 1 Hz offset | 0.1 ms @ 10 kHz offset, 1 s @ 1 Hz offset |
| Data Point Increment ** | 160 fs @ 10 kHz, 0.016 fs @ 1 Hz | 1 ps @ 10 kHz, 0.1 fs @ 1 Hz |
| RMS Timing Jitter [0.1 Hz - 500 kHz] | <150 fs | <150 fs |
Specifications Laserheads
ASOPS Twin | ASOPS Dual Color | |
| Wavelength | 250 MHz | 1560 nm / 780 nm |
| Average Output Power | >75 mW (from each laser) | >100 mW |
| Output Port | fiber-coupled FC/APC | 2 x free space |
| Pulse Length | <150 fs after 6 m PM fiber | <90 fs / <120 fs |
| Piezo Tuning Range | >625 Hz | >100 Hz |
| Piezo Bandwidth | >30 kHz | >30 kHz |
| Stepper Motor Tuning Range | >2 MHz | >330 kHz |
| Trigger Signal | TTL level at offset frequency, <10 ns rise time | TTL level at offset frequency, <10 ns rise time |
*Scales inversely with the repetition rate offset.
**Scales with the ratio of the repetition rate offset and the repetition rate squared (Δ f/fᵣ²).
Requirements
| Operating Voltage | 110/115/230 VAC | 110/115/230 VAC |
| Frequency | 50 to 60 Hz | 50 to 60 Hz |
| Cooling Requirements | no water cooling required | no water cooling required |
| Operating Temperature | 22 ± 5 °C | 22 ± 5 °C |
| Optical Unit Dimensions/Weight | 415 x 400 x 110 mm³, 35 kg | 500 x 535 x 110 mm³, 35 kg |
| Control Electronics Dimensions/Weight | mounted in a 19” rack cabinet, 800 x 600 x 1800 mm³, 75 kg | mounted in a 19” rack cabinet, 800 x 600 x 1800 mm³, 75 kg |
Menlo Systems 홈페이지
- 다음 제품이 없습니다.
- RRE-SYNCRO (Repetition Rate Stabilization)
