Abstract

Frozen-in mechanical stresses can significantly influence the optical and mechanical properties of optical fibers, especially in laser fibers for high-power operation. In the following, we will report on the polarimetric measurement of stresses induced by the spatially varying doping composition in fiber preforms. We investigated the effect of rare-earth laser ions and found that the dopant ytterbium generates higher stresses than other common dopants in lightwave technology such as phosphorus or aluminum. The stress-induced index change relevant for the guiding properties is derived from the stress data. Especially in large-mode-area laser fibers with low numerical apertures, such stresses can significantly modify the index profile and thereby influence the propagation behavior.

© 2009 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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