Abstract

We propose and experimentally demonstrate a simple multiwavelength Raman fiber laser based on few-mode fiber Bragg gratings without additional multichannel filters. The multiwavelength Raman laser output has a high extinction ratio of more than 45 dB. The multiwavelength output is so stable that the peak power fluctuation is less than 0.5 dB. The number of lasing wavelengths can be adjusted, corresponding to the properties of few-mode Bragg gratings with multiple resonant wavelengths. By the thermal tuning method, the lasing wavelength of each channel can be effectively controlled, and the laser’s tunability is measured to be $10.5\mathrm{pm}∕°\mathrm{C}$.

© 2005 Optical Society of America

Flexibly tunable multiwavelength Raman fiber laser based on symmetrical bending method

Young-Geun Han, Dae Seong Moon, Youngjoo Chung, and Sang Bae Lee
Opt. Express 13(17) 6330-6335 (2005)

Wavelength-spacing tunable multiwavelength erbium-doped fiber laser based on four-wave mixing of dispersion-shifted fiber

Young-Geun Han, Thi Van Anh Tran, and Sang Bae Lee
Opt. Lett. 31(6) 697-699 (2006)

Multiwavelength Raman-fiber-laser-based long-distance remote sensor for simultaneous measurement of strain and temperature

Young-Geun Han, T. V.A. Tran, Sang-Hyuck Kim, and Sang Bae Lee
Opt. Lett. 30(11) 1282-1284 (2005)

Switchable multiwavelength erbium doped fiber laser based on a nonlinear optical loop mirror incorporating multiple fiber Bragg gratings

Thi Van Anh Tran, Kwanil Lee, Sang Bae Lee, and Young-Geun Han
Opt. Express 16(3) 1460-1465 (2008)

Development of a multiwavelength Raman fiber laser based on phase-shifted fiber Bragg gratings for long-distance remote-sensing applications

Young-Geun Han, T. V.A. Tran, Sang-Hyuck Kim, and Sang Bae Lee
Opt. Lett. 30(10) 1114-1116 (2005)