Spacing-Switchable Multiwavelength Fiber Laser Based on Nonlinear Polarization Rotation and Brillouin Scattering in Photonic Crystal Fiber

IEEE Photonics Journal

N. S. Shahabuddin¹  H. Ahmad²  Z. Yusoff³  S. W. Harun⁴ 

[1] $^{1}$ Department of Electrical Engineering, Faculty of Engineering, University of Malaya , Kuala Lumpur, Malaysia;$^{2}$ Photonics Research Center, Physics Department, University of Malaya, Kuala Lumpur, Malaysia;$^{3}$ Faculty of Engineering, Multimedia University, Cyberjaya, Malaysia;Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia;

关键词: Erbium-doped fiber laser (EDFL);    multiwavelength;    nonlinear polarization rotation;    stimulated Brillouin scattering (SBS);   

DOI  :  10.1109/JPHOT.2011.2178400

来源: DOAJ

【 摘 要 】

A new spacing-switchable multiwavelength erbium-doped fiber laser (EDFL) is demonstrated using switchable nonlinear polarization rotation (NPR) and stimulated Brillouin scattering (SBS) effects. The laser employs a 100-m-long photonic crystal fiber in conjunction with a four-port circulator in a figure-of-eight arrangement to provide the intensity-dependent transmission effect, as well as to discriminate the even-order and odd-order Brillouin Stokes to have a double-frequency Brillouin Stokes output. Without the Brillouin pump (BP), the laser operates in an NPR mode to produce at least 22 lasing wavelengths with a side mode suppression ratio of more than 10 dB and a wavelength spacing of 0.27 nm. In the Brillouin erbium fiber laser mode, at least 30 Brillouin lines with a spacing of 0.16 nm are obtained at BP power of 3 dBm and 980-nm pump power of 120 mW.

【 授权许可】

Unknown