Long-path Gas Cell
The newly launched Herriott-type Long-path Optical Gas Cell with product model number OELPC-100/OELPC-200 is targeted for use in applications like gas sensing, spectroscopy, etc., in which a long optical path is required. OELPC-100 comes with isolated gas chamber, as shown in Fig. 1. OELPC-200 is the version without a built-in gas chamber. For efficient optical coupling, the cell can be attached with optical fiber pigtails. A beam entering the cell undergoes multiple reflections between two metal-coated highly reflective mirrors and the total length can be up to 30 m (Fig.2).
The input-output ports on this gas cell can be free space or fiber-pigtailed collimators. In addition to this, the output termination can be a photo detector with a suitable operation range. These cells are designed such that, user can easily integrate them in an optical system without requiring any complex alignment process.
|Operation wavelength||nm||UV to MIR|
|Total path||m||3 - 30|
|Pressure (OELPC-100)||atm||1 - 10|
|External dimension (length x width x height)||mm||150 x 74 x 70|
|Optical coupling||-||Free space, fibre pigtail|
|Fibre type||-||SMF, MMF|
|Connector||-||FC-LC-SC / PC-APC|
- Custom design
- Low cost
- No optical alignemnt is required