Magnification of mask fabricated fibre Bragg gratings

Prohaska, J. D.; Snitzer, E.; Rishton, S. A.; Boegli, Volker

doi:10.1049/el:19931075

Cited by 55 publications

(17 citation statements)

References 3 publications

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“…Traditionally, the CMT [9] is used to analyze the coupler devices. Also, the effective index method is used to simplify the three-dimension waveguide structure.…”

Section: (B) Grating Coupler Designmentioning

confidence: 99%

<title>Design and simulation of a new planar OADM component</title>

Yang

Chuang²,

Sue

et al. 2002

Design, Test, Integration, and Packaging of MEMS/MOEMS 2002

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The design and simulation of a new optical add-drop multiplexer (OADM) made of two pairs of grating-frustrated directional couplers is presented. Design theory and simulation are introduced to support its feasibility. The directional couplers are proposed to use polymeric waveguides as the cores. The inverted-ridge waveguide fabrication is proposed using lithography and etching process. The proper dimensions and parameters of each waveguides for OADM are simulated. The designed OADM is a 1550 nm wavelength with add-drop filters, bandwidth 20 nm, and 80% peak transmission showing the application for wavelength division multiplexing (WDM).

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“…Traditionally, the CMT [9] is used to analyze the coupler devices. Also, the effective index method is used to simplify the three-dimension waveguide structure.…”

Section: (B) Grating Coupler Designmentioning

confidence: 99%

<title>Design and simulation of a new planar OADM component</title>

Yang

Chuang²,

Sue

et al. 2002

Design, Test, Integration, and Packaging of MEMS/MOEMS 2002

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“…With phase masks available in RTM, it was possible to write gratings spaced at 5 nm in the spectral range from 1530 nm to 1560 nm. Precise tuning was obtained with two different methods: the stretch-and-write method [2] and the magnification method [3]. The first one made it possible to decrease only the Bragg Figure 1: Configuration of the measurement sites wavelength: the fiber was stretched during laser exposure; and when it was released, the grating pitch became shorter, thereby shifting the Bragg wavelength to a shorter wavelength.…”

Section: Realization Of the Net Of Sensorsmentioning

confidence: 99%

<title>Applications of FBG sensors for the monitoring of critical components of vehicles</title>

Castelli¹,

Falciai

Galli³

et al. 2003

SPIE Proceedings

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The applicability of fiber optic sensors to the automotive field was evaluated within a national project, in which the Fiat Research Centre, RTM and CNR-IROE are involved. The measurement of the mechanical deformations on a vehicle windshield was considered as a case study. This paper refers mainly to the validation phase of the project and in particular to the deformation measurements on a windshield of a FIAT "Brava" using fiber Bragg gratings.The iesults were compared with data collected by using strain gauges and thermocouples. A brief description of the manufacturing and characterisation of the grating and of the interrogation system is also provided.

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“…5 and 6 shows the Bragg wavelength variation versus lens position with the fiber in contact with the phase mask. This variation may be further amplified by increasing the distance between the fiber and the mask [13] up to about 15 nm.…”

Section: B Grating Fabrication By Telescopic Scanningmentioning

confidence: 99%

“…This technique is based on the process reported in [13] permitting the control of the grating wavelength with a phase mask of given pitch, by modifying the UV beam convergence. 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].…”

Section: B Grating Fabrication By Telescopic Scanningmentioning

confidence: 99%