Methods of polarization control for optimum operation of the fiber laser as polarimetric fiber-laser sensors are proposed and demonstrated. The fiber-laser cavity consisted of two sections of equal length of polarization-maintaining fiber with a splice rotated by 90°. Temperature change and longitudinal strain applied to the fiber produced the slope coefficients of 30 kHz/(°C cm) and 43 kHz/μm, respectively. We also demonstrate single-polarization operation of the fiber laser by simply bending the laser fiber.
© 1993 Optical Society of America
Original Manuscript: March 29, 1993
Published: September 1, 1993
H. K. Kim, S. K. Kim, and B. Y. Kim, "Polarization control of polarimetric fiber-laser sensors," Opt. Lett. 18, 1465-1467 (1993)