Wideband and frequency-tunable microwave signal generation using an optoelectronic oscillator incorporating a Fabry-Perot laser diode (FP-LD) with external optical injection is proposed and demonstrated. Through external injection, the FP-LD functions as a tunable high-Q photonic microwave filter, and the frequency tuning is realized by either tuning the wavelength of the externally injected op...

In this paper it will be presented a prototype of low-cost power interrogator for dynamic sensor applications. The proposed system is based on the edge filter technique, where slope an in-house resin Fabry Perot (FP) used to actively narrowband laser centred at middle part FP region. composed source, circulator, photodetector, Arduino board and laptop. Tests have been performed in order check v...

The self-injection-locked diode laser can significantly reduce the linewidth down to a sub-100 kHz level but requires optical filtering that is much narrower than cavity linewidth. Such usually sophisticated and beyond capability of normal dielectric coating approach. Here we develop 0.16 nm narrowband using Fabry–Perot filter (HFFPF) for narrow demonstration cost-effective diode. Single-longit...

An efficient finite-element-method-based scattering operator (FEM-SO) is proposed. Utilizing field based propagation operators as boundary conditions, arbitrary light waves including radiation and evanescent can be treated at input output ports. In contrast to conventional techniques, the FEM-SO applicable structures by using finite element models. addition, considering structural discontinuiti...