4Lasers 設(shè)計并制造用于激光功率控制的電動激光功率衰減器。LPA 可用于 250 納米至 2000 納米的紫外、可見和近紅外光譜范圍。
這些設(shè)備具有大的通光孔徑,適用于大光束應(yīng)用。這些激光功率衰減器的所有光學(xué)元件都具有高激光損傷閾值(LIDT),即使在工業(yè)應(yīng)用中與高功率激光器一起使用時,也能提供穩(wěn)定可靠的性能。
激光功率衰減器單元產(chǎn)生的次級激光束通過輸出窗口被引導(dǎo)至外部光束收集器(可選),以避免 LPA 設(shè)備外殼產(chǎn)生任何熱效應(yīng)或應(yīng)力。出射激光束有 2.25 毫米的光束偏移。
主要特點(diǎn)
?堅固耐用的設(shè)計
?損傷閾值高達(dá) 10 焦 / 平方厘米(1064 納米波長,10 納秒脈寬)
?偏振器角度可調(diào)節(jié) ±2 度
?通光孔徑 18 毫米
?包含外部控制器
?操作軟件直觀易用
?整圈旋轉(zhuǎn)有 175,543 步
?激光功率精度 ±0.05%
?調(diào)節(jié)時間小于 0.2 秒(從最小到最大)
應(yīng)用示例
?激光加工
?科研
?激光功率控制與衰減
技術(shù)參數(shù):
TICAL | Clear input aperture | ?18 mm |
Clear output aperture | ?18 mm | |
Optical configuration | λ/2 ZO Waveplate + High contrast brewster type thin film polarizer | |
Power attenuation range | 0,1 – 98% | |
LIDT coating | >10 [J/cm2] (10 ns @ 1064 nm) | |
Close to open time | < 0,2 sec | |
Resolution | 175,543 μsteps in full rotation (0,002 deg, 7,4 arcsec, 0,035 mrad) | |
Repeatability (after 10,000 positions without homing) | ±10 μsteps (± 0,02 deg, less than ± 0,05 %) | |
Available coatings | 1064 nm, 1030 nm, 532 nm, 515nm, 355 nm, 343 nm, custom | |
Bandwidth | 5-10 nm | |
CONTRAST | 1030/1064 nm | 1:1000 |
515/532 nm | 1:1000 | |
334/355 nm | 1:500 | |
257/266nm | 1:200 | |
MECHANICAL | LPA mechanical dimensions | 76 x 36 x 58 mm |
LPA with beam dump mechanical dimensions | 76 x 52 x 58 mm | |
Controller mechanical dimensions | 125 x 53 x 31 mm | |
ELECTRONIC | Communication | Using ASCII commands described in manual |
Cable length from LPA to the controller | 1,5 m | |
Software interface | LPA software | |
Input voltage | DC 12 V | |
Control interface | USB, RS232, Ethernet | |
CONDITIONS | Operating temperature, Celsius | 10 to 40 |
Mounting holes | M6 on both sides, M4 on the bottom side | |
Beam Dump | Dissipation Power (avg) at room temperature <6W | |
Housing material | Anodized aluminum |