Switchable dual-wavelength SOA-based fiber laser with continuous tunability over the C-band at room-temperature
Autor: | Asm Delowar Hossain, Roger Dorsinville, M. Razani, Nicholas Madamopoulos, M. A. Ummy |
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Rok vydání: | 2012 |
Předmět: |
Optical amplifier
Materials science Amplifiers Electronic business.industry Lasers Temperature Physics::Optics Polarization-maintaining optical fiber Equipment Design Atomic and Molecular Physics and Optics Equipment Failure Analysis Optics Fiber Bragg grating Fiber optic sensor Fiber laser Dispersion-shifted fiber Optoelectronics Fiber Optic Technology business Plastic optical fiber Microwaves Terahertz Radiation Photonic-crystal fiber |
Zdroj: | Optics express. 20(21) |
ISSN: | 1094-4087 |
Popis: | We propose and demonstrate a simple compact, inexpensive, SOA-based, dual-wavelength tunable fiber laser, that can potentially be used for photoconductive mixing and generation of waves in the microwave and THz regions. A C-band semiconductor optical amplifier (SOA) is placed inside a linear cavity with two Sagnac loop mirrors at its either ends, which act as both reflectors and output ports. The selectivity of dual wavelengths and the tunability of the wavelength difference (Δλ) between them is accomplished by placing a narrow bandwidth (e.g., 0.3 nm) tunable thin film-based filter and a fiber Bragg grating (with bandwidth 0.28 nm) inside the loop mirror that operates as the output port. A total output power of + 6.9 dBm for the two wavelengths is measured and the potential for higher output powers is discussed. Optical power and wavelength stability are measured at 0.33 dB and 0.014 nm, respectively. |
Databáze: | OpenAIRE |
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