How do FBG sensors work?

FBGs are essentially reflectors built inside the core of an optical fiber. The reflectors are made by permanently altering the refractive index of the core. FBGs are off-the-shelf items today, and can also be made to order to fit particular applications (e.g., many FBGs in an array with irregular spacing on a single fiber). Each FBG reflects a certain narrow slice of spectrum. Such slices typically have a smooth Gaussian shape. The center (i.e., top) [...]

2015-10-02T17:52:11+00:00 July 3rd, 2008|Uncategorized|

What are the Specific Advantages of FBG Sensors?

I often ask a prospective customer: Why are you considering using optical sensors? Sometimes it’s simply that they are enamored with new technology. Granted it is cool but what are the real problems that they need to solve? Here are examples of problems that I look for and the associated benefits provided by fiber Bragg grating sensors: We need a passive Class 1, Div 1 sensor for an explosive environment. Benefit: FBG sensors are passive. [...]

2017-03-23T22:53:15+00:00 June 13th, 2008|Uncategorized|