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Tunable Single-Frequency Pulsed Lasers
- Ideal source for single frequency laser pulses
- Either Ti:Sa or dye based cw systems can be used as seed for large wavelength ranges
- Also possible: To employ diode lasers with high isolation for smaller wavelength ranges
- Seed input power: 50 – 300 mW single frequency
- High peak powers while ultra low amplified spontaneous emission (ASE)
- Optional SHG/THG frequency conversion or other nonlinear conversion processes can be used
There are also optimized setups for high repetition rates available: PulsedAmp 2xHRR / 3xHRR
PulsedAmp 4x
- Consists of four amplification stages
- Three circulator systems with dye cells integrated in single housing
All Dimensions in mm. Specifications are subject to change without notice.
Literature & Downloads
PulsedAmp 5x
- Consists of five amplification stages
- Three circulator systems with dye cells integrated in single housing
- Unique performance: Dramatically suppressed ASE and cw seed beam due to phase conjugated mirror based on Stimulated Brillouin Scattering (SBS)
All Dimensions in mm. Specifications are subject to change without notice.
Literature & Downloads
Performance
Using 300 mW of seed radiation and 400 mJ of pump laser energy it is possible to generate 30 mJ pulses at 730 nm (Pyridine 2). However, results depend of wavelength, seed laser and pump laser details.
The graph shows the spectral profile of the pulses. The linewidth is determined by the pulse duration and shape (Fourier-limit) of the pump laser, in this case a non-seeded YAG laser.
General Characteristics
| PulsedAmp | 4x | 5x |
|---|---|---|
| Repetition Rate | 1 - 400 Hz | 1 - 400 Hz |
| Wavelength Range | 545 - 900 nm (pumped with 532 nm) 374 - 560 nm (pumped with 355 nm) | 545 - 900 nm (pumped with 532 nm) 374 - 560 nm (pumped with 355 nm) |
| Linewidth | 180 MHz | 180 MHz |
| Conversion Efficiency | up to < 20% | up to < 20% |
| ASE | < 0.1 % | < 0.1 % |
| Divergence | 0.5 mrad | 0.5 mrad |
| Beam Size | approx. 5 - 6 mm (typical) | approx. 5 - 6 mm (typical) |
| Pump Energy | 650 mJ @ 532 nm 400 mJ @ 355 nm | 800 mJ @ 532 nm 600 mJ @ 355 nm |
Requirements
| Seed Laser | 50 - 300 mW, linear polarization |
| Ambient Conditions | constant temperature in the 20-30°C range, 80% max. rel. humidity, non condensing |
| Optical Isolation | > 30 dB |
| Cooling | required for dye solution (600 Watt) |
| Laboratory | vibrational isolated optical table, dust-free air (flow box) |
| Voltage | 110 - 220 V, single phase, 50/60 Hz |