Hongyan Fu

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Fiber-optic sensors, especially fiber Bragg grating (FBG) sensors are very attractive due to their numerous advantages over traditional sensors, such as light weight, high sensitivity, cost-effectiveness, immunity to electromagnetic interference, ease of multiplexing and so on. Therefore, fiber-optic sensors have been intensively studied during the last(More)
In this article, we have proposed and demonstrated two new approaches to implement microwave photonic filter with tunable multi-passband based on reflective fiber Mach-Zehnder interferometer and cascaded fiber Mach-Zehnder interferometers and dispersive medium. The proposed MPF has simple structure and is easy to implement, also the experimental results(More)
We experimentally demonstrate an all-fiber optical parametric amplifier (OPA) for generating widely tunable 1.44–1.50 µm laser. The OPA is achieved by simultaneously injecting a continuous wave (CW) 1533.4 nm fiber laser and a tunable laser into a 2-km long highly nonlinear fiber (HNF). Idler wave of 1439.98 nm wavelength with low threshold of(More)
In this letter, a fiber-optic temperature sensor using an optoelectronic oscillator (OEO) has been proposed and experimentally demonstrated. Part of the fiber in the oscillator loop is taken as the sensing fiber. Since the free spectrum range of the OEO is determined by the length of the oscillator loop, and when the temperature of the sensing fiber is(More)
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