Design of a 30 GHz bragg reflector for a Raman FEL

P. Zambon; P.J.M. van der Slot

doi:10.1016/0168-9002(94)90411-1

Design of a 30 GHz bragg reflector for a Raman FEL

P. Zambon, P.J.M. van der Slot

Research output: Contribution to journal › Article › Academic › peer-review

5 Citations (Scopus)

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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.

Original language	English
Pages (from-to)	484-488
Number of pages	5
Journal	Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment
Volume	341
Issue number	1-3
DOIs	https://doi.org/10.1016/0168-9002(94)90411-1
Publication status	Published - 1994
Event	15th International Free Electron Laser Conference, FEL 1993 - Netherlands Congress Centre, The Hague, Netherlands Duration: 23 Aug 1993 → 27 Aug 1993 Conference number: 15

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10.1016/0168-9002(94)90411-1

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Design of a 30 GHz Bragg reflector for a Raman FEL
Zambon, P. & van der Slot, P. J. M., 23 Aug 1993.
Research output: Contribution to conference › Poster › Other research output

Cite this

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title = "Design of a 30 GHz bragg reflector for a Raman FEL",

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.",

author = "P. Zambon and {van der Slot}, P.J.M.",

year = "1994",

doi = "10.1016/0168-9002(94)90411-1",

language = "English",

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journal = "Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment",

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note = "15th International Free Electron Laser Conference, FEL 1993, FEL ; Conference date: 23-08-1993 Through 27-08-1993",

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T1 - Design of a 30 GHz bragg reflector for a Raman FEL

AU - Zambon, P.

AU - van der Slot, P.J.M.

N1 - Conference code: 15

PY - 1994

Y1 - 1994

N2 - 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.

AB - 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.

U2 - 10.1016/0168-9002(94)90411-1

DO - 10.1016/0168-9002(94)90411-1

M3 - Article

VL - 341

SP - 484

EP - 488

JO - Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment

JF - Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment

SN - 0168-9002

IS - 1-3

T2 - 15th International Free Electron Laser Conference, FEL 1993

Y2 - 23 August 1993 through 27 August 1993

ER -

Design of a 30 GHz bragg reflector for a Raman FEL

Abstract

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Design of a 30 GHz Bragg reflector for a Raman FEL

Cite this