Continuously Wavelength-Tunable Laser Source Using a Self-Injected Fabry–Pérot Laser Diode

Wavelength switching of erbium-doped fiber laser by using Mach–Zehnder interferometer and cavity loss control

“…A fiber laser employing an intracavity fiber Fabry-Pérot filter shows wide-band tunability in continuous mode operation [3][4][5]. A tunable laser can also be obtained by employing a self-injected/seeded Fabry-Pérot laser diode in the laser cavity [6,7], by using two cascaded unbalanced Mach-Zehnder interferometers as an intracavity filter [8], by controlling the pump power for erbium-doped fiber [9], by combining a long period grating and a polarization element to control polarizer-dependent loss [10,11], or through cavity loss control via fiber bending in the fiber laser loop [12][13][14],…”

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].…”

Wavelength Switching of Erbium-Doped Fiber Laser by Optical Injection into Overlapped Laser Cavities

“…6,7) Recently, many kinds of tunable erbium-doped fiber lasers (EDFLs) have been proposed and demonstrated. A few examples of EDFLs are the wide-band tunable fiber ring laser employing an intracavity fiber Fabry-Pe ´rot filter, [8][9][10] the single-wavelength and multiwavelength fiber laser with changing pumping power in an overlapped fiber Bragg grating (FBG) structure, 11,12) the tunable lasers employing tunable bandpass filters and Fabry-Pe ´rot laser diodes (FPLD) within the laser cavities, [13][14][15][16] the switchable multiwavelength fiber laser through polarization control in the cavity, [17][18][19][20] the tunable laser combining a long period grating and a polarization element to control polarizer-dependent loss, 21,22) the tunable L-band fiber ring laser through cavity loss control via fiber bending in the fiber laser loop, 23,24) the multiwavelength tunable fiber ring laser based on a sampled chirped FBG, 25,26) and the S-band tunable laser by bending a section of depressed-cladding erbium-doped fiber (EDF) to suppress the lasing of wavelengths in C-band. 27) Fast wavelength switching is necessary for highspeed packet-switched optical networks.…”