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Stability of short, single-mode erbium-doped fiber lasers



Mikael Svalgaard, Sarah L. Gilbert


We conducted a detailed study of the stability of short, erbium-doped fiber lasers fabricated with two UV-induced Bragg gratings written into the doped fiber. We find that the relative intensity noise of single-longitudinal-mode fiber grating lasers is approximately 3 orders of magnitude lower than that of a single-frequency 1.523-μm helium-neon laser. The frequency noise spectrum contains few resonances, none of which exceeds 0.6 kHz/Hz+1/2 rms; the integrated rms frequency noise from 50 Hz to 63 kHz is 36 kHz. We also demonstrate a simple method for monitoring the laser power and number of oscillating modes during laser fabrication.
Optics Letters


Fiber lasers, Bragg gratings, frequency stability, intensity noise, relaxation oscillations


Svalgaard, M. and Gilbert, S. (1997), Stability of short, single-mode erbium-doped fiber lasers, Optics Letters, [online], (Accessed June 12, 2024)


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Created July 20, 1997, Updated February 17, 2017