By Topic

Multiwavelength Q -switched Laser by Incorporating a LiNbO _{3} Phase Modulator in Fabry–PÉrot Cavity

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Pu Zhou ; Coll. of Optoelectric Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China ; Xiaolin Wang ; Yanxing Ma ; Ma, Haotong
more authors

In this letter, we present a simple and compact laser cavity that can be used for Q-switching and multiwavelength oscillation. It is shown that a LiNbO3 phase modulator with relatively low driven voltage inserted into a Fabry-Perot cavity can act simultaneously as an effective component for suppressing the homogeneous line broadening, switching the Q-value of the laser cavity, and a polarizer. Multiwavelength operation of Yb-doped fiber laser is achieved by phase modulation. Q-switching is achieved due to the residual intensity modulation of the phase modulator, and the pulse performance is also impacted by the phase modulation amplitude. Three stable wavelengths with identical wavelength spacing of 3.3 nm and pulsed laser of 0.2 muJ per pulse energy at the repetition rate of 55.8 kHz are demonstrated. The full-width at half-maximum pulse duration is of 2 mus, and the polarization extinction ratio is >23 dB.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 16 )