Share Email Print

Proceedings Paper

RF spectral analysis for characterisation of mode-locked regimes in fibre lasers
Author(s): Alexey V. Ivanenko; Sergey M. Kobtsev; Alexey Kokhanovskiy; Sergey V. Smirnov
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In this work, we present our results of RF spectral analysis applied to mode-locked lasers and propose a method of qualitative assessment of mode-locked operation, which allows differentiation of individual generation regimes by a parameter calculated from RF spectra of the fundamental and the n-th radiation harmonics. The proposed parameter is derived both from the signal-to-noise ratio and from width and amount of additional noise present in RF spectrum of inter-mode beats at the fundamental pulse repetition frequency and its harmonic. This work presents analysis of energy fluctuations and temporal instability of pulse train period for different regimes of pulse generation in Yb fibre laser mode locked due to nonlinear polarization evolution. The paper shows that energy fluctuations of single-scale (“conventional”) pulses is about 1.6%, whereas for double-scale pulses energy fluctuations amount to 11.5%. Temporal instability of double-scale pulse train period is 1.5 times higher in comparison with single-scale pulse train period.

Paper Details

Date Published: 31 October 2016
PDF: 6 pages
Proc. SPIE 10019, Optoelectronic Devices and Integration VI, 100191F (31 October 2016); doi: 10.1117/12.2247754
Show Author Affiliations
Alexey V. Ivanenko, Novosibirsk State Univ. (Russian Federation)
Sergey M. Kobtsev, Novosibirsk State Univ. (Russian Federation)
Alexey Kokhanovskiy, Novosibirsk State Univ. (Russian Federation)
Sergey V. Smirnov, Novosibirsk State Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 10019:
Optoelectronic Devices and Integration VI
Xuping Zhang; Baojun Li; Changyuan Yu, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?