The telecommunications industry and sensors require fast methods for engineering fiber lasers. In this work, using lowoptical-
power flat-top pulse excitations, it has been possible to determine both the attenuation coefficients and the
intrinsic saturation powers of doped single-mode fibers at 980 and 1550 nm. Laser systems have been projected for
which the optimal fiber length and output power have been determined as a function of the input power. Ring and linear
laser cavities have been set up, and the characteristics of the output laser have been obtained and compared with the
theoretical predictions based on the measured parameters.
This work presents a research in which a Twin Core Fiber (TCF) has been employed for designing a Mach- Zehnder
interferometer and its behavior under the effect of thermal gradients has been regarded. From the coupled modes theory
can be deduced that under the phase-matched condition-that is similar propagation constants in both cores of a TCF,
the energy transported in the cores is the same, which is fundamental for developing this interferometer. This research
required to design a thermal cavity and an automation circuit for applying thermal cycles to a segment of the TCF. The
temperature was recorded by means of a thermocouple placed inside the thermal cavity and its signal was introduced into
the computer where an instrumentation software (Lab View) designed for monitoring and controlling variables used this
signal for controlling the on-off states of a power resistor and a refrigeration system for raising and lowering the
temperature, respectively. It was observed that the optical power variations in a point of the interference pattern
presented a weak dependence with the thermal cycles.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.