We report on a tunable all-fiber dissipative-soliton laser with a multimode interference filter that consists of a multimode fiber spliced between two single-mode fibers. By carefully selecting the fiber parameters, a filter with a central wavelength at 1032 nm and a bandwidth of 7.6 nm is constructed and used for spectral filtering in an all-normal-dispersion mode-locked ytterbium-doped fiber laser based on nonlinear polarization evolution. The laser delivers 31 mW of average output power with positively chirped 7 ps pulses. The repetition rate of the pulses is 15.3 MHz, and pulse energy is 2.1 nJ. Tunable dissipative-soliton over 12 nm is achieved by applying tension to the single-mode–multimode–single-mode filter.
© 2012 Optical Society of America
Lasers and Laser Optics
Original Manuscript: July 2, 2012
Revised Manuscript: August 9, 2012
Manuscript Accepted: August 11, 2012
Published: September 11, 2012
Lei Zhang, Jinmeng Hu, Jianhua Wang, and Yan Feng, "Tunable all-fiber dissipative-soliton laser with a multimode interference filter," Opt. Lett. 37, 3828-3830 (2012)