Highly efficient and high output power of erbium doped fiber laser in a linear cavity configuration

Abstract

A simple Erbium Doped Fiber Laser (EDFL) in linear cavity configuration is reported. The cavity design is based on an FBG as a back reflector, and a loop back optical circulator with an output coupler as the front reflector. Different coupling ratios of the coupler are tested and 50: 50 provides the highest coupling output power of 22.06 dBm (160.7 mW). The pump power conversion efficiency is about 95% when pumping with two

Switchable wavelength generation by injection-locked fiber laser based on GS-RSOAs

“…Some lasers described in recent studies include an EDF laser with liquid nitrogen used for multiwavelength oscillation [8], an EDF laser with a cascaded structure using fiber grating cavities [9], a ring laser using a high birefringe ment (Hi Bi) optical fiber loop mirror and EDF [10], a tunable laser based on a Febry-Perot laser diode (F⎯P LD) chip temperature and F-P tunable filter [11], an EDF laser that yields high output power and high efficiency using fiber Bragg grating (FBG) [12], a dual wavelength EDF ring laser based on a saturable absorber passive filter for single longitudinal mode operation [13], and a tunable and stable dual wave length EDF double ring laser that uses tunable band pass filters [14].…”