Magneto-optic Crystal Polarization Controller Assisted Mode-Locked Fiber Laser

Guang-Zhen, Zhao; Gui, Lili; Xiao, Xiaosheng; Yang, Changxi

doi:10.1088/0256-307x/28/3/034203

Cited by 3 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However for polarization controllers using these solenoids as a mechanical actuator, the problem of stability must be studied. Indeed, these devices have mechanically moving parts that limit their precise control and stability [15] and one potential drawback to this type of actuator is its limited stable travel range [16]. These problems are due to the saturation of the magnetic circuit of these controllers, which limits the phase shift of their operation and thus degrades the stability [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of fiber and solenoid variation parameters on the elements of a corrector PID for electromagnetic fiber squeezer based polarization controller

Zahidi¹,

Amrane²,

Azami³

et al. 2020

IJECE

View full text Add to dashboard Cite

Controlling the polarization of the light output from single-mode fiber systems is very important for connecting it to polarization-dependent integrated optical circuits, while applications using a heterodyne detection system. Polarization controller using fiber squeezer is attractive for a low-loss, low-penalty coherent optical fiber trunk system. However, for polarization controllers using electromagnetic fiber squeezer, the stability problem due to the saturation of their magnetic circuit must be studied. In fact, in their conventional configuration, open-loop stability affects performance and limits applications. First at all, this effect has been analyzed and a feedback circuit with correctors has been proposed to improve stability performance. Then a simulation study is proposed to examine the influence of the system parameters on the corrector constants. The results of the simulation show that if the system parameters change the constants Kp, Ki and Kd of the PID corrector must be adjusted to keep an optimized dynamic response.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of fiber and solenoid variation parameters on the elements of a corrector PID for electromagnetic fiber squeezer based polarization controller

Zahidi¹,

Amrane²,

Azami³

et al. 2020

IJECE

View full text Add to dashboard Cite

show abstract

Magnetic field response of erbium-doped magneto-optic fiber Bragg grating

Wen

et al. 2012

Opt. Eng

View full text Add to dashboard Cite

The spectrum shift of erbium-doped magneto-optic fiber Bragg grating (Er-MFBG) induced by external magnetic fields is, for the first time, directly measured by the method of the "direct edge detection," and then the effective Verdet constant of −12.42 rad∕ðT · mÞ is determined. The theoretical results are in agreement with the experimental data. Our analysis shows the transfer characteristics of the spectrum shift to the transmission power are dependent on the state of polarization and wavelength position of probe light for a given Er-MFBG.

show abstract

Automated mode locking in nonlinear polarization rotation fiber lasers by detection of a discontinuous jump in the polarization state

Olivier¹,

Gagnon²,

Piché³

2015

Opt. Express

View full text Add to dashboard Cite

A strategy to align a mode-locked fiber laser with nonlinear polarization rotation is presented. This strategy is based on measurements of the output polarization state. It is shown that, as the angle of a motorized polarization controller inside the cavity is swept, the laser eventually reaches a mode-locked regime and the values of the Stokes parameters undergo an abrupt change. The sensing of this sudden variation is thus used to detect the mode-locking condition and a feedback mechanism drives the alignment of the polarization controller to force mode locking.

show abstract

Magneto-optic Crystal Polarization Controller Assisted Mode-Locked Fiber Laser

Cited by 3 publications

References 19 publications

Effect of fiber and solenoid variation parameters on the elements of a corrector PID for electromagnetic fiber squeezer based polarization controller

Effect of fiber and solenoid variation parameters on the elements of a corrector PID for electromagnetic fiber squeezer based polarization controller

Magnetic field response of erbium-doped magneto-optic fiber Bragg grating

Automated mode locking in nonlinear polarization rotation fiber lasers by detection of a discontinuous jump in the polarization state

Contact Info

Product

Resources

About