精品综合久久久久久97_亚洲国产精品久久久久婷婷老年_成人区人妻精品一区二区三区_国产精品JIZZ在线观看老狼_国产欧美精品一区二区三区

光纖耦合輸出氣體吸收池

光纖耦合輸出氣體吸收池有這樣幾種類型：深紫外到中紅外氣體吸收池，單模吸收池，標準吸收池，獨特的氣體吸收池，氣體吸收管。

1、深紫外到中紅外氣體吸收池

Wavelength引用的氣體流動吸收池在深紫外到中紅外光譜多模光纖耦合適合客戶使用自己的氣體樣品與光纖耦合組件和工作。

產(chǎn)品應用：

■ 優(yōu)化了光譜儀或紅外光譜的使用，也可以用于可調(diào)諧激光器系統(tǒng)

■ 與光纖纖芯直徑達1um和數(shù)值孔徑0.37的SMA905連接器兼容

■ 波長從150nm到9um (UV to mid-IR)

■ 為*小的光干涉工件

■ 緊湊多通道設(shè)計為低濃度/弱吸收線

2、標準氣體吸收池

Molecules have specific absorption lines dependent on the molecular energy level transitions particular to the species. For gases these lines are also particularly accurately known (subpicometer)， narrow， and insensitive to environmental conditions. A gas cell is simply a tube filled with a gas or gas mixture of known chemical and isotopic purity and pressure and may be used as is or coupled to fiber optic cables. They have been widely researched as wavelength standards and are the basis of NIST SRMs 2514， 2515， 2517， 2517A， and 2519.

Some examples of uses for gas cells include:

■ Tunable laser calibration

■ Sensing system calibration

■ Reference for chemical detector or medical instrumentation

■ Optical instrument calibration source (wavelength， dispersion， etc)

Wavelength References is an industry leader in providing a full breadth of NIST traceable gas cells in a number of configurations. They can be ordered coupled to fiber optic cables， with built in detectors， or as a bare absorption tube. Special requests are welcomed. Species include acetylene， hydrogen cyanide， carbon monoxide， water， hydrogen fluoride， methane， hydrogen chloride， ammonia， and mixtures. These species can provide subpicometer accuracy over full Telcordia environmental specification. Custom faceplate material is available for extended operation in the infared to >4 microns. Other species may be available on request.

■ Acetylene 12C2H2 The acetylene cells are the equivalent of the NIST SRM 2517 and 2517A Wavelength Calibration Reference for 1510nm-1540nm. We can offer a variety of pressures that can be used to tailor the absorption width to the application. These fiber coupled gas cells are the smallest (4.7cm by 1.4cm by 1 cm) and lowest cost offered by Wavelength References. As an example for ordering:

C2H2-12-M-F-200-FCAPC

This would be a fiber coupled carbon 12 acetylene gas cell with 200 Torr pressure and FC/APC connectors.

■ Hydrogen Cyanide H13CN The hydrogen cyanide cell is the equivalent of the NIST SRM 2519， Wavelength Calibration Reference for 1530nm-1560nm. This device covers the entire C-band. As an example for ordering : HCN-13-C-100-FCAPC This would be a fiber coupled carbon 13 hydrogen cyanide gas cell at 100Torr pressure and with FC/APC connectors. We also offer a NEW “mini” HCN cell with a 5cm absorption path. This much smaller cell has a peak absorption level of 1.2 dB as compared with the 16.5cm path standard HCN cell 3.2 dB peak absorption level.

■ Carbon Monoxide 12CO and 13CO Carbon monoxide covers the L-band with the carbon 12 isotope covering from 1560nm to 1595nm and the carbon 13 isotope from 1595nm to 1630nm. These devices are in our 80cm path multipass housing which offers a compact 5 pass design only a little larger then our HCN cell.

3、氣體吸收管

Tubes are useful for free space optical applications， such as those that require wavelengths where optical fiber is not applicable. We have many gases available and can provide mixtures as well. For example， our customers often request a backfill of nitrogen to mimic atmospheric conditions.

Tubes are made custom to order so several configurations are possible. When requesting an absorption tube， you may refer to our handyAbsorption Tube Info Sheet. Of course， please contact us with any questions. We’d be eager to hear about your application!

Below you will find a drawing and general specifications and configurations for our glass tubes. For our copper tubes (useful for caustic gases such as HF)， please visit us here.

Absorption Tube

Sketch of an absorption tube. Note: this drawing is not to scale.

Specifications

■ Length: 2cm < L < 20cm (2cm， 5cm， 10cm standard)

■ Outer Diameter (OD): 12mm and 25mm standard; 5mm and 9mm also available

■ Tipoff: T < 10mm

■ Window Tilt: 3 degrees

■ Window Wedge: 0.3 degrees

■ Window material: B270 Crown Glass (<2.6 microns); MgF2 (<8 microns); ZnSe (<14 microns)

Window Material

< 2.6 microns: We supply wedged B270 Crown glass windows AR-coated for 600， 1330， 1550 or 1700nm. AR-coatings are provided at no extra charge.

MgF2

< 8 microns: We supply wedged MgF2 windows. These provide excellent transmission and are lower cost than our ZnSe windows. They are available for our 12mm and 25mm outer diameter tubing. Click on the thumbnail for the transmission spectrum (graciously supplied by Crystran Ltd)

ZnSe

< 14 microns: For applications past 8 microns， we use ZnSe windows. Click on the thumbnail for the transmission spectrum or visit Crystran.

4、單模氣體吸收池

氣體流動氣室是許多激光采樣氣體傳感系統(tǒng)中必要的組成部分。我們單模光纖耦合氣室有幾個選項，以更好地適應您的特定傳感應用程序。

產(chǎn)品特點

■ 優(yōu)可提供各種連接頭， FCAPC， FCPC， SCAPC， SCPC

■ 配備接頭套管®管配件整合到你的氣體輸送系統(tǒng)

■ 1/4“管接頭標準。其他選項包括1/8 "配件

■ 三個路徑的長度可以用16.7 cm， 47.5 cm and 78.1 cm.

■ 經(jīng)營全真空1000托

■ 4-40螺紋安裝孔的氣室

5、獨特氣體吸收池

Molecules have specific absorption lines dependent on the molecular energy level transitions particular to the species. For gases these lines are also particularly accurately known (subpicometer)， narrow， and insensitive to environmental conditions. A gas cell is simply a tube filled with a gas or gas mixture of known chemical and isotopic purity and pressure and may be used as is or coupled to fiber optic cables. In addition to the standard gas cells equivalent to those offered by NIST Wavelength References offers a variety of gas cells that greatly expand their application. If you have a custom application please do not hesitate to inquire， we welcome custom orders. Some examples of gas cells materials we have fabricated include methane， ammonia， hydrogen fluoride， hydrogen chloride， carbon dioxide， water vapor， hydrogen sulphide， nitrogen， argon， nitrogen dioxide， as well as the more standard acetylene， hydrogen cyanide， and carbon monoxide. Cells can be filled to any pressure lower then atmosphere and can be filled with either pure gases or mixtures.

Bare glass absorption tubes can be fabricated with diameters from 3mm to 25mm and a length up to 20cm. All tubes use wedged windows broadband AR coated for the wavelength range of interest. Optical artifacts due to residual etalon effects are generally <0.01dB P-P.

We can offer fiber coupled gas cells with several path lengths which are optimized for the absorption strength of the gas present. Path lengths from 3 cm to 80 cm are available.

Some of the more popular unique gas cells we offer include:

■ Dual gas C+L gas cell.

This is fabricated in our 80 cm path housing and includes carbon 12 HCN combined with carbon 12 CO. This combination covers the wavelength range from 1520nm to 1590n

■ Tri-gas C+L band gas cell. This cell is also fabricated in our 80 cm path housing and includes carbon 12 HCN， carbon 12 CO， and carbon 13 CO. This combination covers the wavelength range from 1520nm to 1640nm.

■ Four gas S+C+L band gas cell. This cell incorporates four gases: water vapor， C12 carbon monoxide， C13 carbon monoxide， and acetylene to cover the wavelength range from 1330nm to 1640nm.

■ HF 1300nm band gas cell. The HF cell is fabricated with hydrogen fluoride gas. This gas has very strong isolated gas lines from 1260nm to 1330nm. Due to the corrosive nature of hydrogen fluoride the cell is fabricated so the only copper， sapphire， and silver contact the gas. This cell is unique to Wavelength References and shows the high level of processing procedures available at our company.

■ Water Cell The water cell is fabricated in our multipass housing and has numerous lines throughout the 1330-1480nm band as well as at other wavelengths. Some customers have successfully used this device for the 980nm region as well and the tube can be fabricated with windows optimized for this region.

6、標準封裝配件

Wavelength References公司供應各種類型和配置的氣室。氣室應用于光學儀器的波長校正和傳感檢測系統(tǒng)。它還可以用在光譜和激光波長鎖定。 幾乎任何種類的氣體，不管是單一純氣體還是混合氣體都可以提供。 他們供應的光纖耦合氣室為了匹配氣體的吸收強度提供不同的光程。

3cm管長“迷你”氣室

這個是我們*小的也是成本*低的氣室。這個*典型的是裝入可以覆蓋到波長范圍從1510nm到1540nm的乙炔氣體。

5cm管長 “迷你”氣室

這種氣室，常常裝入C-band的覆蓋波長從1528nm到1563nm的氰化氫，并且這個會提供一個大致1.2db的峰值譜線強度。

16.5cm管長的氣室

這個管長是用于我們標準的氰化氫氣室，能提供一個3.2dB的從1528nm到1562nm峰值吸收深度。

80cm管長 “多通道”氣室

這種氣室在這80cm的管長里面通過吸收管的5個通道折疊了光束。這個典型的用于有較弱吸收譜線的氣體，比如一氧化碳（碳12和碳13）， 水蒸氣，其他氣體。

3cm 管長 銅殼，藍寶石窗口

這個器件是用于在1260nm到1340nm波長上具有強烈吸收線譜的氟化氫氣體和其他具有強腐蝕性的氣體，吸收管既可以提供玻璃封裝也可以提供銅制封裝的。波長范圍>10micron帶硒化鋅窗口。幾乎任何的氣體或者混合的氣體都可以提供。

玻璃封裝和楔形的窗口，直徑從5mm到25mm， 長度從1cm到20cm。終端窗口典型的都是抗反射涂層，也有可能是傾斜的。它們可能被充入可以跟玻璃能共處的任何氣體或者混合氣體。穿透射可以提供從微米到2.8微米的良好運行。

Copper envelope with wedged sapphire or selenide windows. This can be offered in various paths and clear aperture. This envelope is used for requirements with corrosive gases or far infrared performance.