Chinese Optics Letters, 2017, 15 (5): 051402, Published Online: Jul. 23, 2018
Investigation of ellipticity and pump power in a passively mode-locked fiber laser using the nonlinear polarization rotation technique Download: 968次
140.3510 Lasers, fiber 140.4050 Mode-locked lasers 060.2410 Fibers, erbium 060.4370 Nonlinear optics, fibers
Abstract
An elliptical initial polarization state is essential for generating mode-locked pulses using the nonlinear polarization rotation technique. In this work, the relationship between the ellipticity ranges capable of maintaining mode-locked operation against different pump power levels is investigated. An increasing pump power, in conjunction with minor adjustments to the polarization controller’s quarter waveplate, results in a wider ellipticity range that can accommodate mode-locked operation. Other parameters such as noise, pulsewidth, and average output power are also observed to vary as the ellipticity changes.
H. Ahmad, S. I. Ooi, M. Z. A. Razak, S. R. Azzuhri, A. A. Jasim, K. Thambiratnam, M. F. Ismail, M. A. Ismail. Investigation of ellipticity and pump power in a passively mode-locked fiber laser using the nonlinear polarization rotation technique[J]. Chinese Optics Letters, 2017, 15(5): 051402.