The primary application of fiber Bragg gratings is in optical communications systems.

Fiber Bragg gratings can then be used as direct sensing elements for strain and temperature.

A photomask having the intended grating features may also be used in the manufacture of fiber Bragg gratings.

As well as reducing associated costs and time, this also enables the mass production of fiber Bragg gratings.

A common example of this type utilizes Fiber Bragg Gratings.

The influence of the embedding process was studied for silica and polymer fiber Bragg gratings.

This was the first method used widely for the fabrication of fiber Bragg gratings and uses two-beam interference.

This means that fiber Bragg gratings can be used as sensing elements in optical fiber sensors.

Fiber Bragg gratings are narrow-band reflectors and act as the mirrors of the laser cavity.

Chiral-fiber gratings are a variation on conventional fiber Bragg gratings.

Normally a germanium-doped silica fiber is used in the manufacture of fiber Bragg gratings.

In 1988, the first Raman fiber laser based on fiber Bragg gratings has been made.

Fiber-optic sensors have been developed to measure co-located temperature and strain simultaneously with very high accuracy using fiber Bragg gratings.

Photomasks are specifically used in the manufacture of chirped Fiber Bragg gratings, which cannot be manufactured using an interference pattern.

He first demonstrated Fiber Bragg gratings and their applications in optical communication and optical sensor systems.

Fiber Bragg gratings that employ volume holographic gratings encrypted into an optical fiber.

Mass production is in particular facilitating applications in smart structures utilizing large numbers (3000) of embedded fiber Bragg gratings along a single length of fiber.

Hill was also awarded the Rank Prize in Optoelectronics in 2002 as one of four scientists recognized for creating and developing Fiber Bragg gratings.

Both PCFs and fiber Bragg gratings employ Bragg diffraction phenomena, albeit in different directions.)

More recently, fiber Bragg gratings have also been written in polymer fibers, this is described in the PHOSFOS entry.

Recently the development of high power fiber lasers has generated a new set of applications for fiber Bragg gratings (FBG's), operating at power levels that were previously thought impossible.

There are a variety of demultiplexer and multiplexer technologies including thin film filters, fiber Bragg gratings with optical circulators, free space grating devices and integrated planar arrayed waveguide gratings.

Unlike most other types of lasers, the laser cavity in fiber lasers is constructed monolithically by fusion splicing different types of fiber; fiber Bragg gratings replace conventional dielectric mirrors to provide optical feedback.

In contrast to the fiber Bragg gratings, LPFGs couple copropagating modes with close propagation constants; therefore, the period of such a grating can considerably exceed the wavelength of radiation propagating in the fiber.

Fiber Bragg gratings are created by "inscribing" or "writing" systematic (periodic or aperiodic) variation of refractive index into the core of a special type of optical fiber using an intense ultraviolet (UV) source such as a UV laser.