The benefits of this application, compared to conventional mechanical profilometers, include the ability to perform non-contact measurements of delicate surfaces with increased measurement resolution and speed. Fibre optic applications are also growing in importance. Compared to conventional intensity-based fibre optic sensors, one primary advantage of low coherence interferometry is that measurement accuracy is not sensitive to optical power fluctuations which can occur along the fibre link used to connect the remote sensor and signal processing unit. It means that the technique provides much higher range to resolution. Fibre optic interferometry can be used to measure sensing parameters remotely and, when multiplexed, can also measure parameters through a large number of sensors simultaneously.
Applications range from telecommunications to biomedical sensing.
In biomedical diagnosis, a 3D technique called optical coherence tomography has been used to obtain cross sectional images of the human retina in vivo. With over 10,000 employees worldwide, Celestica is headquartered in Toronto, and operates 17 manufacturing and design facilities in the United States, Canada, Mexico, the United Kingdom and Ireland. The company provides services and system solutions in three primary areas. Celestica's Electronics Manufacturing Services include system assembly, printed circuit assembly, and post-manufacturing support to major OEM's worldwide. Celestica is also one of the largest manufacturers of memory modules in the world, with a product line ranging from portable devices to mainframe computers.