All-fiber ytterbium soliton mode-locked laser with dispersion control by solid-core photonic bandgap fiber

Abstract

We exploit an anomalous dispersion generated by a solid-core photonic bandgap fiber for dispersion compensation in an ytterbium fiber laser passively mode-locked with a semiconductor saturable absorber. The bandgap-guiding fiber, adequately compatible with standard fiber based on guiding via total internal reflection, allows for an environmentally robust all-fiber subpicosecond soliton oscillator at 1 mum.

Stress induced birefringence in hybrid TIR/PBG guiding solid photonic crystal fibers

“…Solid photonic bandap fibers (SPBGF) are useful for intracavity dispersion control in pulsed lasers [1]. For short pulse delivery, however, polarization noise can degrade the output pulse shape and ultimately limit the achievable pulse duration.…”

Assymptotically single mode-hybrid fiber with a high anomalous dispersion in the 1μm wavelength region

“…To overcome this limitation, several types of special fibers were proposed. Among them it is worth noting hollow core fiber 1 , photonic crystal fiber 2 , high-order-mode fiber 3 , photonic bandgap fibers 4,5 and etc. But all of them have significant drawbacks: propagation of few modes in the core (in the case of hollow core fiber, high order mode fiber), high optical losses (in the case of photonic bandgap fiber), high nonlinearity (in the case of photonic crystal fiber), impossibility to use conventional fusion splicing (hollow core fiber).…”

Large mode area hybrid multi-trench fiber for anomalous dispersion

“…In order to compensate the dispersion within the laser cavity, fiber with anomalous dispersion can be used as a dispersion compensating element. Several fiber designs with anomalous dispersion around 1μm have been proposed to compensate the dispersion within the laser cavity, such as Photonic Crystal Fibers (PCFs) [1], Hollow Core Photonic Bandgap Fibers (HC-PBGFs) [2], Bragg Fibers [3], and 2D-All Solid Photonic Bandgap Fibers (2D-ASPBGFs) [4]. Recently, a technique of exploiting the anomalous dispersion of Higher Order Mode (HOM) in a few moded fibers has also been demonstrated [5].…”

“…Few moded fiber can provide anomalous dispersion at large A eff of the FM, but this technique requires long period gratings, which make the system cumbersome [5]. 2D-ASPBGFs show high anomalous dispersion at the long wavelength edge of Photonic Bandgap (PBG), for example a 2D-ASPBGFs, with FM losses ~0.07 dB/m and MFD ~9 μm at 1.04 μm, can achieve a dispersion of 90 ps/(nm.km) [4]. It is worth noting that anomalous dispersion in 2D-ASPBGFs is obtained at the long wavelength edge of the PBG which leads to high losses for the FM.…”