Title :
Investigation of fiber laser pulses by a fiber-Bragg-grating (FBG) spectrum analyzer
Author :
Jetschke, S. ; Hagemann, S. ; Ropke, Ulrich ; Morl, K. ; Muller, H.-R.
Author_Institution :
Inst. for Phys. High Technol. e.V. Jena, Germany
Abstract :
We prepared two fiber-Bragg-gratings (FBG)-arrays for the wavelength range 1074 - 1100 nm, both with a spectral width of 0.1 nm and a reflectivity of about 1% of the individual gratings so that pulses are investigated from an Yb fiber laser, Q-switched by an acousto-optical modulator with a repetition rate of 2.6 kHz. Using FBG-array the development of high spikes over some roundtrips in the fiber laser resonator was observed and spectrally analyzed.
Keywords :
Bragg gratings; Q-switching; acousto-optical modulation; fibre lasers; high-speed optical techniques; infrared spectra; laser cavity resonators; spectral analysers; ytterbium; 0.1 nm; 1074 to 1100 nm; FBG; Q-switching; Yb fiber laser pulses; acousto-optical modulator; fiber laser resonator; fiber-Bragg-grating arrays; spectrum analyzer; Bragg gratings; Fiber gratings; Fiber lasers; Optical fiber couplers; Optical fibers; Optical pulses; Oscilloscopes; Pulse measurements; Spectral analysis; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313705
