Novel method of producing all fibre photoinducedchirped gratings

Kashyap, Raman; McKee, Paul; Campbell, Robert; Williams, Doug

doi:10.1049/el:19940669

Cited by 97 publications

(23 citation statements)

References 6 publications

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“…By writing a succession of small elementary gratings and, between each grating, changing the beam convergence, it is possible to write step-chirped gratings [5]. This method allows the choice of the central wavelength of the grating and to also apodize the grating profile by controlling the irradiation time on each elementary grating at the same time.…”

Section: B Grating Fabrication By Telescopic Scanningmentioning

confidence: 99%

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Chirped fiber Bragg gratings for WDM chromatic dispersion compensation in multispan 10-Gb/s transmission

Riant¹,

Gurib²,

Gourhant³

et al. 1999

IEEE J. Select. Topics Quantum Electron.

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Section: B Grating Fabrication By Telescopic Scanningmentioning

confidence: 99%

“…100-mm-long step-chirped phase masks [5], nominally on the ITU grid of wavelengths, also manufactured at BT Laboratories, were used for the fabrication of the gratings. The fabrication scheme has been published elsewhere [6].…”

Section: A Grating Fabrication By Symmetric Stretchmentioning

confidence: 99%

Chirped fiber Bragg gratings for WDM chromatic dispersion compensation in multispan 10-Gb/s transmission

Riant¹,

Gurib²,

Gourhant³

et al. 1999

IEEE J. Select. Topics Quantum Electron.

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“…The first chirped gratings were aperiodic waveguide gratings [18]. Over the years, a multitude of techniques emerged to inscribe CFBGs by side illumination with UV-lasers [19][20][21][22]. Since different wavelengths are reflected at different positions in the grating, the time delay of reflected light can be governed: For example it is possible to compensate the inner fiber dispersion of hundreds of fiber meters with a short chirped fiber Bragg grating [23].…”

Section: Laser and Photonics Reviews J Thomas Et Al: Femtosecond Pulsmentioning

confidence: 99%

“…In the following, we refer to these products as parallel and perpendicular. Figure 8b shows a cross-coupling product, with a being the fundamental HE 11 mode and b the higher order mode HE 21 (the first index l corresponds to the azimuthal order as expressed in the radial part exp(iφ l) of the fields.) Here both products are nonzero and have positive and negative contributions.…”

Section: Laser and Photonics Reviewsmentioning

confidence: 99%

Femtosecond pulse written fiber gratings: a new avenue to integrated fiber technology

Thomas

Voigtländer

Becker

et al. 2012

Laser & Photonics Reviews

159

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The use of ultrashort laser pulses for fiber grating inscription has many advantages in comparison to continuous wave and long pulse lasers. The most important one is that it allows inscription in nonphotosensitive fiber materials. In this paper the principal inscription techniques and the physical properties of femtosecond (fs) pulse written in-fiber gratings are reviewed. The role of focusing and order walk-off on the inscribed structures is emphasized. A fs pulse written fiber Bragg grating (FBG) also has a unique coupling behavior, due to a refractive index change that is independent from the fiber geometry. Selected applications of such gratings for sensing and fiber lasers are discussed.

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“…The subsequent milestone was the development of the phase mask [5,6] -a diffractive component of the properties extremely convenient for the FBG inscription. Abundance of the set-ups based on diverse modifications offered by the phase mask fruited in numerous new types of FBGs as chirped [7][8][9], tilted (blazed) [10], phase shifted [11], superstructure [12], etc. with parameters precisely tailored for given applications.…”

Section: Introductionmentioning

confidence: 99%

Development of fiber Bragg gratings technology and their complex structures for sensing, telecommunications and microwave photonics applications

Osuch¹,

Gąsior²,

Markowski³

et al. 2014

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. In this paper research on the development of the fiber Bragg grating (FBG) technology which has been conducted at the Institute of Electronic Systems (IES), Warsaw University of Technology (WUT) since 2004 is presented. In particular the directions in the development of advanced set-ups employing the phase mask inscription scheme are discussed and supported with the descriptions of structures designed and fabricated with the use of the laboratory stages constructed at the IES. The novelty of the presented solutions is based on the combination of numerous techniques of the external modification of the interferometric patterns (projected onto cores of photosensitive fibers to modulate their refractive index) as well as application of the modification of the internal properties of the waveguides themselves by the means of introducing strain or tapering.The development of these sophisticated set-ups resulted in the inscription of FBGs with precisely designed spectral characteristics which found application in telecommunications and sensor technology are also illustrated here.The paper is summarized with the specification of the most important achievements attained at the lab and drafting of the possible directions of further research.

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Novel method of producing all fibre photoinducedchirped gratings

Cited by 97 publications

References 6 publications

Chirped fiber Bragg gratings for WDM chromatic dispersion compensation in multispan 10-Gb/s transmission

Chirped fiber Bragg gratings for WDM chromatic dispersion compensation in multispan 10-Gb/s transmission

Femtosecond pulse written fiber gratings: a new avenue to integrated fiber technology

Development of fiber Bragg gratings technology and their complex structures for sensing, telecommunications and microwave photonics applications

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