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激光气体分析传感技术TDLAS(环保)

上海瞬渺在TDLAS领域积累了丰富的经验,可以为广大科研和企业用户提供全方位的技术咨询和产品供应,可以为客户提供专业的选型指导。


RAYSCIENCE单模VCSEL激光二极管以几种标准或常用波长覆盖了从1400nm到2050nm整个近红外范围。垂直腔结构保证了低域值、低工作电流和极好的调谐性能。它的工作温度范围从0℃到50℃ (非冷却)。 

精密激光波长选择光谱用于微量气体含量分析  激光光谱学用激光二极管 标准波长: 1512nm, 1564nm, 1600nm, 1740nm其他的波长可以按要求提供1512nm NH3 1742nm HCl 1577nm H2S 1790nm NO 1580nm CO 1877nm H2O 1654nm CH4 2004nm CO2

气体   探测极限 (ppb) 波长(nm)
Water H2O 60 1390
1802
Carbon Dioxide CO2 3000 1960
Carbon Monoxide CO 30000 1570
500 2330
Nitric Oxide NO 60000 1800
1000 2650
Nitrogen Dioxide NO2 340 680
Nitrous Oxide N2O 1000 2260
Methane CH4 600 1650
Acetylene C2H2 80 1520
Hydrogen Fluoride HF 10 1310
Hydrogen Chloride HCI 150 1790
Hydrogen Bromide HBr 600 1960
2100 1540
Hydrogen Iodide HI 2100 1540
Hydrogen Cyanide HCN 290 1540
Hydrogen Sulfide H2S 20000 1570
Ammonia NH3 800 1500
Formaldehyde H2CO 50000 1930
Phosphine PH3 1000 2150
Oxygen O2 78000 760
可调谐半导体激光器结构:VCSEL,DFB
可调谐半导体激光器封装形式有:TO(with Cooler),BUT&DIL
谱宽(~20MHz),电流调谐(~0.2nm/mA),温度调谐(~0.08nm/K)

资料文档下载 价格

气体种类波长 (nm) H2F 1330 H2O 1365 HB2 1341 NH3 1544 H2S 1578 CO 1567 CO2 1573 CH4 1651 HCl 1747


New DFB-Laser diodes

760 nm DFB laser diodes.
852 nm DFB laser diodes.
894 nm DFB laser diodes.
935 nm DFB laser diodes.
980 QD nm DFB laser diodes.
1742 nm DFB laser diodes.
1877 nm DFB laser diodes.
2004 nm DFB laser diodes.
2330 nm DFB laser diodes.
2740 nm DFB laser diodes.
9500 nm QCL DFB laser.
10700 nm QCL DFB laser.
12500 nm QCL DFB laser.

Packaging options for FP-, DFB- laser diodes and SLDs

14p Butterfly new!

Gas wavelength
(nm)
Type Model Number
(Previou Model Number)
Output Power (min.) Package Drawing Standard Pigtail
HF 1280-1340 DFB CW NLK1B5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1B5GAAA 20mW 1(14p Butterfly) SM/FC
1320-1420 CW NLK1B5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1E5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1E5GAAA 20mW 1(14p Butterfly) SM/FC
1490-1530 CW NLK1S5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1S5GAAA 20mW 1(14p Butterfly) SM/FC
CO 1540-1610 CW NLK1C5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1C5GAAA 20mW 1(14p Butterfly) SM/FC
CW NLK1L5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1L5GAAA 20mW 1(14p Butterfly) SM/FC
1570-1620 CW NLK1L5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1L5GAAA 20mW 1(14p Butterfly) SM/FC
1580-1670 CW NLK1L5EAAA 10mW 1(14p Butterfly) SM/FC
CW NLK1L5GAAA 20mW 1(14p Butterfly) SM/FC
CW NLK1U5EAAA 10mW 1(14p Butterfly) SM/FC

5.6 TO-Cannew!
Gas wavelength
(nm)
Type Model Number
(Previou Model Number)
Output Power (min.) Package Drawing
HF 1280-1340 DFB CW NLK1B5C1TA 10mW 5.6 TO-Can
CW NLK1B5D1TA 20mW 5.6 TO-Can
1320-1420 CW NLK1B5C1TA 10mW 5.6 TO-Can
CW NLK1E5C1TA 10mW 5.6 TO-Can
CW NLK1E5D1TA 20mW 5.6 TO-Can
1490-1530 CW NLK1S5C1TA 10mW 5.6 TO-Can
CW NLK1S5D1TA 20mW 5.6 TO-Can
CO 1540-1610 CW NLK1C5C1TA 10mW 5.6 TO-Can
CW NLK1C5D1TA 20mW 5.6 TO-Can
CW NLK1L5C1TA 10mW 5.6 TO-Can
CW NLK1L5D1TA 20mW 5.6 TO-Can
1570-1620 CW NLK1L5C1TA 10mW 5.6 TO-Can
CW NLK1L5D1TA 20mW 5.6 TO-Can
1580-1670 CW NLK1L5C1TA 10mW 5.6 TO-Can
CW NLK1L5D1TA 20mW 5.6 TO-Can
CW NLK1U5C1TA 10mW 5.6 TO-Can
1735-1745 CW KELD1F5C2TA 10mW 5.6 TO-Can
1990-2010 CW KELD1G5B2TA 5mW 5.6 TO-Can


TDLAS(TDLAS气体分析技术本质上是一种吸收光谱技术,通过分析所测光束被气体的选择吸收获得气体浓度)对大气及其污染源中的CO、CO2、CH4等污染物进行自动监测。相关论文下载:激光气体分析传感j技术TDLAS(环保)


常见问题FAQ:
1.波长如何调谐?
答:通过温控或者电流

2.可调谐半导体激光器结构:VCSELDFB 我应该选择哪一种?
答:VCSEL精度更高,波长范围广,DFB功率更大

3.我应该选择什么波长的激光管?
答:请参考气体分析表格

3.可以测量气体的温度吗?
答:可以的

4.我可以先购买一个激光管试用吗?
答:不可以,我们一般5个起订,不过你如果运气好,订的和别人一样的型号买一个也可以

5.我需要光纤输出可以吗?
答:可以,光纤输出贵一些,耦合效率50%90%不等。是否需要光纤输出要看使用的场合。

5.我需要驱动电源,你们可以提供吗?
答:可以,我们有台式电源和板式电源供选择。

 

 


 

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