Title :
Real-time optical spectrum analyser based on chirped fibre Bragg gratings
Author :
Berger, N.K. ; Levit, B. ; Bekker, A. ; Fischer, R.
Author_Institution :
Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel
fDate :
7/6/2000 12:00:00 AM
Abstract :
A real-time fibre optic spectrum analyser for optical pulses is realised. It is based on a chirped fibre Bragg grating and the formation of a time domain analogue of the Fraunhofer diffraction regime. The spectrum of a modelocked diode laser was measured, with a resolution of 0.3 nm, which can be easily improved to 0.06 nm
Keywords :
Bragg gratings; Fourier transform optics; Fraunhofer diffraction; chirp modulation; laser beams; laser mode locking; laser variables measurement; optical fibres; optical modulation; pulse measurement; real-time systems; semiconductor lasers; spectral analysers; Fraunhofer diffraction regime; chirped fibre Bragg grating; chirped fibre Bragg gratings; fibre optic spectrum analyser; modelocked diode laser; optical pulses; real-time optical spectrum analyser; resolution; time domain analogue;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000858
