23 MHz widely wavelength-tunable L-band dissipative soliton from an all-fiber Er-doped laser

Abstract

Via careful choice of Er-doped fiber length in the cavity, a widely wavelengthtunable L-band dissipative soliton all-fiber Er-doped laser incorporating a L-band optimized polarizing fiber grating device is experimentally demonstrated. The laser delivers 15.38 ps dissipative soliton pulses centered at 1597.34 nm with 3 dB bandwidth of 34.6 nm under 622 mW pump power. The pulse repetition rate is 23 MHz. After using single mode fiber at external cavity, the pulse duration is compressed to 772 fs. With nonlinear polarization rotation-based intracavity comb filter, the central wavelength of the generated dissipative soliton can be tuned from 1567 nm to 1606 nm with a spectral tuning range of 39 nm, which, to the best of our knowledge, is the widest tuning range yet reported for a dissipative soliton fiber laser working in communication band.

Pump-controlled wavelength switchable dissipative soliton mode-locked Yb-doped fiber laser using a 45° tilted fiber grating

“…45°-TFG, as a novel fiber-based polarizer, has the characteristics of superior fiber compatibility, robustness and low insertion loss. They have been widely used in various types of fiber lasers [27][28][29]. The inscription details of the 45°-TFG are described in ref J o u r n a l P r e -p r o o f [30].…”

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

“…Generally, a tunable spectral filter is required to achieve the lasing wavelength tuning ability such as Fabry-Perot interferometer (FPI) [178,179], Mach-Zehnder interferometer (MZI) [180], graphene-coated filter [181], chirped FBG [182], W-shape LPG [183] and fiber birefringence filter [184,185]. Recently, an NPR strategy incorporating intracavity polarizer and intrinsic fiber birefringence has been reported to enable a wide spectral tuning range [186]. These tuning methods are mainly the passive means with great depends on laser operation, which are restricted to the tuning range and the response time.…”

Tunable erbium doped fiber laser based on a spherical micro-ball lens as a Fabry–Perot interference filter

“…Moreover, tunable fiber lasers are of great scientific interest due to their biomedical research applications spectroscopy, fiber optic sensors, optical instrumentation, and telecommunications [8]. Also, tunable erbium-doped fiber lasers (EDFLs) exhibit advantages of narrow bandwidth [9,10] and a wide range of wavelength adjustment [11]. Then, EDFLs have essential applications in photoelectric fields [12], such as wavelength division multiplexing and time-division multiplexing of the fiber optic, fiber optic detection system, and modern spectrum technology [12].…”