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

• Published in: Laser physics Vol. 20; no. 10; pp. 1894 - 1898
• Main Authors: Awang, N. A., Zulkifli, M. Z., Norizan, S. F., Harun, S. W., Ghani, Z. A., Ahmad, H.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01.10.2010; Springer
• Subjects: Exact sciences and technology; Fiber lasers; Fiber Optics; Fundamental areas of phenomenology (including applications); Gratings; Lasers; Optical Devices; Optical elements, devices, and systems; Optics; Other fiber-optical devices; Photonics; Physics; Physics and Astronomy; Reflectors, beam splitters, and deflectors; Output Power; Wavelength Division Multiplex; Fiber Bragg Grating; Laser Phys; Pump Power; Optical fibers; Bragg gratings; Reflectors; Output power; Erbium-doped fiber; Line widths; Diffraction gratings; Grating in fiber; Fiber lasers
• ISSN: 1054-660X; 1555-6611
• DOI: 10.1134/S1054660X10190011

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 pump lasers at 1460 and 1490 nm with combined pumping power of 545 mW. The laser output has a measured linewidth of 0.0179 nm.