Parameter

Nominal Characteristics and Tolerances of Tapered Bend-Insensitive Fiber

Absolute Maximum Parameters

Laboratory testing

Steps:

1. Install a 1392nm laser, and connect the laser output fiber to one end of the 40-meter long optical path gas chamber

2. Connect the other end of the 40-meter gas chamber to the detector

3. Use a BNC to SMA cable to connect the detector and the oscilloscope

4. Turn on the laser, adjust the current and temperature, and view the direct absorption of water molecules on the oscilloscope Test results and analysis verification:

We adjusted the current and temperature of the laser to make the laser wavelength sweep across the absorption peak of water molecules at around 1392nm. The measured direct absorption spectrum is shown in the figure below:

 In order to verify that it is the absorption of water molecules, we queried the parameters of the Hritral database as follows:

We can see that the absorption peak in the database corresponds exactly to the absorption peak measured on the oscilloscope, which also verifies that the absorption spectrum on our oscilloscope is the absorption of water molecules.

Ordering Information

PL-40-S3-AR6-FSA Optical path: 40:40 meters

Material: S3:SUS304

Gas port diameter: AR6:6mm

Fiber optic and connector: FSA:SMF-28E, FC/APC