Design of a 30 GHz bragg reflector for a Raman FEL

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Zambon, P. and Slot van der, P.J.M. (1994) Design of a 30 GHz bragg reflector for a Raman FEL. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 341 (1-3). pp. 484-488. ISSN 0168-9002

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Abstract:A design of a Bragg reflector for a Raman FEL is described. It is shown that mode conversion occurs whenever the axial wavenumbers of the two modes fulfil the Bragg condition. With a constant ripple of the corrugation it is shown that the reflected radiation also contains higher order modes, assuming that the incident radiation consists only of a TE11 mode. The mode purity can be increased by increasing the length of the reflector at the expense of a smaller reflection bandwidth. A more flexible method is by applying a Hamming window to the corrugation of the reflector. Contributions of other modes to the reflected radiation can in that case be neglected. The reflector will be installed in a Raman laser to be able to compare the amplifier with the oscillator configuration. Therefore some preliminary results are also presented about the start-up of the Raman laser.
Item Type:Article
Copyright:© 1994 Elsevier Science
Faculty:
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/24865
Official URL:http://dx.doi.org/10.1016/0168-9002(94)90411-1
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Metis ID: 129666