Study of a Raman free-electron laser oscillator with Bragg reflection resonators

Journal Article · Fri Mar 01 04:00:00 EST 1991 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.81352· OSTI ID:5761499

Chen, J; Wang, M C; Wang, Z; Lu, Z; Zhang, L; Feng, B ^[1]

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1. Shanghai Inst. of Optics Fine Mechanics, Academia Sinica, Shanghai 201800 (CN)

In this paper a high-gain Raman free-electron laser oscillator is realized by using a Bragg reflection resonator with a limited pulse duration of the electron beam (0.4 MeV/800 A, 60 ns). The practical design of the Bragg reflectors is introduced. A concept of hybrid oscillator configuration which combines the high gain of a superradiant amplifier with the narrow bandwidth of a conventional oscillator (Fabry-Perot resonator) is put forward and is conformed by experimental results which shows that 14 MW peak power at 7.7 mm wavelength (bandwidth {Delta}{lambda}/{lambda} {lt} 55) with a 4.4% electronic efficiency is produced. Also, the comparison of the measured fundamental wavelength of radiation spectrum with the result of calculations has been made.

• OSTI ID: 5761499
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:3; ISSN 0018-9197; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
BEAMS
BRAGG REFLECTION
COMPARATIVE EVALUATIONS
DESIGN
EFFICIENCY
ELECTRON BEAMS
ELECTRONIC EQUIPMENT
ENERGY SPECTRA
EQUIPMENT
EVALUATION
FABRY-PEROT INTERFEROMETER
FREE ELECTRON LASERS
GAIN
INTERFEROMETERS
LASERS
LEPTON BEAMS
MEASURING INSTRUMENTS
PARTICLE BEAMS
PULSES
RAMAN EFFECT
REFLECTION
RESONATORS
SPECTRA