飞秒激光器
皮秒激光器
纳秒激光器
Cobra-Stretch系列纳秒脉冲染料激光
Cobr-Stretcha系列纳秒脉冲染料激光器是Sirah公司推出的标准版染料激光器，采用光栅调谐波长，振荡级/预放级，放大级（选配）的双染料池结构。具有60mm或90mm长，1800/2400/3000线多种光栅可以选择，以及双光栅选项。最大泵浦能量：800mJ@532nm，500mJ@355nm。Cobr-Stretcha具有结构可靠，重复精度高，转换效率高达30%等诸多优点。
描述
Cobr-Stretcha系列纳秒脉冲染料激光器是Sirah公司推出的标准版染料激光器，采用光栅调谐波长，振荡级/预放级，放大级（选配）的双染料池结构。具有60mm或90mm长，1800/2400/3000线多种光栅可以选择，以及双光栅选项。最大泵浦能量：800mJ@532nm，500mJ@355nm。
| Dispersion Option | Tuning Range | Linewidth | Efficiency |
|---|---|---|---|
| Three Quartz Prisms | 370..920 nm | 0.15 nm 1) 5 cm-1 @ 570 nm | 30 % 2) |
| 1800 lines / mm, 60 mm | 400..920 nm | 3.6 pm 0.1 cm-1 @ 625 nm | 30 % 3) |
| 1800 lines / mm, 90 mm | 400..920 nm | 2.4 pm 0.06 cm-1 @ 625 nm | 30 % 3) |
| 2400 lines / mm, 60 mm | 370..760 nm | 2.7 pm 0.08 cm-1 @ 570 nm | 30 % 2) |
| 2400 lines / mm, 90 mm | 370..760 nm | 1.8 pm 0.06 cm-1 @ 570 nm | 30 % 2) |
| 3000 lines / mm, 60 mm | 370..620 nm | 2.0 pm 0.06 cm-1 @ 570 nm | 30 % 2) |
| 3000 lines / mm, 90 mm | 370..620 nm | 1.4 pm 0.05 cm-1 @ 570 nm | 30 % 2) |
| Dual 1800 lines / mm | 410..900 nm | 1.7 pm 4) 0.05 cm-1 @ 625 nm | 27 % 3) |
| Dual 2400 lines / mm | 370..710 nm | 1.2 pm 4) 0.04 cm-1 @ 570 nm | 27 % 2) |
| Dual 3000 lines / mm | 370..580 nm | 1.0 pm 4) 0.03 cm-1 @ 570 nm | 27 % 2) |
| Absolute Wavelength Accuracy | < 15 pm (prism models: 0.5 nm) | ||
| Wavelength Resetability | < 2 pm (prism models: 0.05 nm) | ||
| Wavelength Stability | < 1,5 pm / °C (prism models: 10 pm / °C) | ||
| Divergence (typical) | 1.0 mrad (0.4 mrad with main amplifier) | ||
| Polarization | > 98 % (vertical) | ||
| ASE | < 0.5 % | ||
| Pump Energies | 8..150 mJ @ 532 nm, resonator, pre-amplifier only | ||
| 8..80 mJ @ 355 nm, resonator, pre-amplifier only | |||
| 50..650 mJ @ 532 nm, with main amplifier (800 mJ5)) | |||
| 50..400 mJ @ 355 nm, with main amplifier (500 mJ5)) | |||
| 1) for wavelength < 660 nm 2) resonator and pre-amplifier at 570 nm (peak Rhodamine 6G) pumped at 532 nm 3) resonator and pre-amplifier at 625 nm (peak DCM) pumped at 532 nm 4) exact linewidth depends weakly on wavelength; value given for 450 nm 5) with enhanced beam profile (capillary) EBP dye cell |
|||
Cobr-Stretcha具有结构可靠，重复精度高，转换效率高达30%等诸多优点。
Cobr-Stretcha具有丰富的选配功能：
- EBP毛细管圆光斑染料池，改善输出光斑质量
- 倍频/差频等频率扩展附件，波长可覆盖197nm-5.2 μm（详见《波长扩展选件》）
- Grating Lift选件，可选装两块不同线数的光栅，实现在线自动更换光栅
- PWC压电陶瓷波长高速切换器，可在两个波长下高速切换，最大切换速度30Hz，最大波长跳跃2.6nm
- DBO双线宽转换选件，可以切换染料激光器线宽到大约3.6倍，满足即需要窄线宽，也需要宽线宽的应用
- Double Dye双染料激光器选项，将两台染料激光器集成在一个机箱内，结构紧凑，占用空间小，可靠性好
