Abstract
Applying strain to a fiber prior to grating inscription is often used to provide some flexibility in the design wavelength for phase mask based grating fabrication systems. Although earlier studies have characterized germanosilicate fibers under strain, an analysis has never been performed on photosensitive erbium-doped fiber (EDF). For this experiment, arrays of 10-mm-long gratings were written in EDF under various strains and exposure conditions. As with studies performed in passive fiber, a decrease in the photosensitivity of the EDF was observed with increasing strain. The reduction in grating strength with strain was characterized and utilized to model the threshold of distributed feedback fiber lasers inscribed at various strains. Multiplexed arrays of fiber lasers were then fabricated to verify the simulations.
© 2018 USGov
PDF Article
More Like This
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