Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Comparison of asymmetric and symmetric cavity configurations of erbium-doped fiber laser in active Q -switched regime

Not Accessible

Your library or personal account may give you access

Abstract

We present a comparative analysis of the dynamics of an actively Q-switched erbium-doped fiber laser assembled in two configurations of Fabry–Pérot cavity, asymmetric and symmetric, specified by the location of an acousto-optic Q-switch modulator relative to the output couplers. In both configurations, the length of an active (Er3+-doped) fiber is chosen such that the laser does not spuriously emit at the moments when the modulator is blocked, which is important for the pulse-on-demand operation. We show experimentally that the symmetric cavity configuration permits enlarging of the active fiber length twice as compared to the asymmetric one, thereby increasing the energy and decreasing the duration of output pulses. We also demonstrate that in the symmetric cavity configuration the laser emits a train of short (18ns width on a 3 dB level) and stable Q-switch pulses with a couple of much smaller in magnitude adjacent subpulses. We apply the traveling waves’ method for making an accurate modeling of the laser dynamics in both implementations. The modeling takes into account all the point intracavity losses as well as the distributed ones, including the loss stemming from the excited-state absorption of Er3+ ions. The results of numerical simulations of the laser dynamics in both implementations are shown to be in excellent agreement with experiments.

© 2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Photon statistics of actively Q-switched erbium-doped fiber laser

Josue A. Minguela-Gallardo, Yuri O. Barmenkov, Alexander V. Kir’yanov, and G. Beltrán-Pérez
J. Opt. Soc. Am. B 34(7) 1407-1414 (2017)

Smart Q-switching for single-pulse generation in an erbium-doped fiber laser

Luis Escalante-Zarate, Yuri O. Barmenkov, Stanislav A. Kolpakov, José L. Cruz, and Miguel V. Andrés
Opt. Express 20(4) 4397-4402 (2012)

Experimental investigation on a Q-switched, mode-locked fiber laser based on the combination of active mode locking and passive Q switching

Junsu Lee, Joonhoi Koo, You Min Chang, Pulak Debnath, Yong-Won Song, and Ju Han Lee
J. Opt. Soc. Am. B 29(6) 1479-1485 (2012)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (25)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved