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A new all fiber temperature sensor is proposed and demonstrated based on a pair of 1 meter erbium‐doped fiber (EDF), which are respectively macro‐bent and straight. The sensor has a linear normalized loss (dB) response to temperature at 6.5 mm bending radius and 1580 nm input wavelength. The main advantage of this sensor is high temperature resolution (less than 1 °C) and sensitivity (0.03 dB/°C)...
An efficient Bismuth-based erbium-doped fiber amplifier (EDFA) is demonstrated using a double-pass configuration. The amplifier utilizes the double-propagation of the signal provided using an optical circulator at the output end of the erbium-doped fiber (EDF) and has obtained improved gain characteristics as compared to an amplifier of single-pass configuration. This amplifier provides again as high...
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