Long dynamic population gratings (DPGs) formed in rare-earth-doped fibers have unique
spectral characteristics compared to other types of fiber gratings, making them suitable for …

Efficient, narrow-linewidth Tm-doped fiber lasers operating in the 1.7 μm wavelength regime
are of significant importance for a wide range of applications. To achieve high-power 1.7-μm …

We present a single-frequency thulium-doped fiber laser (TDFL) with a narrow linewidth of
20 kHz. Stable single-longitudinal-mode (SLM) lasing operation at 1957 nm is achieved …

We demonstrate an efficient single-frequency Tm-doped fiber laser at 2050 nm. A ring cavity
scheme is employed to boost the net gain at the wavelength. A piece of Tm/Ho-codoped …

The authors experimentally demonstrate the operation of a lasing phase-sensitive optical
time-domain reflectometer (Φ-OTDR) based on random feedback from a sensing fiber. Here …

The saturable absorption effect of unpumped, rare earth‐doped fiber can be used as a
method of achieving single‐frequency operation in fiber lasers. This effect in thulium‐doped …

We demonstrate for the first time, to our knowledge, an all-fiber erbium-doped mode-locked
laser in which mode-locking (ML) is realized by the combination of nonlinear polarization …

We demonstrate a narrow-linewidth high-order-mode (HOM) Brillouin random fiber laser
(BRFL) based on a long-period fiber grating (LPFG) and distributed Rayleigh random …

We present a single-frequency erbium-doped fiber laser operated at 1608.8? nm using a
homemade, heavily erbium-doped silica fiber as gain medium. The laser configuration is …

A new type of sweeping operation—dual-mode continuous-wave (CW) self-sweeping—is
demonstrated in an erbium-doped fiber laser with a sweeping range of 2.8 nm in a region of …