Nowadays, the interface between microwave engineering and photonic technology is used in the field of communication, and this new interdisciplinarity is known such as microwave photonics (MWP). This document describes various microwave photonic filter (MPF) configurations and its application. We investigate all possible configurations of the MPF and its frequency response and also analyze the spectrum of the laser source used. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay In the current situation, the new term radio over fiber (RoF) technology is being discussed. In this technology, the radio signal is transmitted using the photonic device and optical fiber. The configuration known as MPF is used for these operations. Furthermore, the tuning and reconfigurability of the frequency response constitute a great focus for the researcher. Rof has improvements in reliability, electromagnetic interference (EMI) immunity, wide bandwidth tunability, and low loss. The analog optical connection here offers important advantages such as receiver sensitivity and the possible use of analog modulation. Potential applications of analog optical links include remote antenna communication, cable television systems, phased array radar, and microwave system interconnection [1]. Several multi-source MPF processes have been envisaged, including the use of independently tunable laser diodes, broadband optical source spectrum chopping, and the use of the Fabry-Prot (FP) multimode laser. This document mainly contains various setups for MPF that is analyzed and from that what kind of frequency response you would get and how that setup is used for communication purposes. The survey was conducted on methods of providing Internet on board but did not include new technologies. For MPF we can use various types of optical sources. In this article we discuss two types of laser diodes: 1) multiwavelength Brillouin-erbium fiber laser (BEFL) and 2) multimode laser diode. The use of the MPF multiwavelength Brillouin-erbium fiber laser is designated and described experimentally in [2]. Figure 1 shows the representation of MPF using BEFL as the optical source. BEFL arrangements work with linear gain in the erbium-doped fiber amplifier (EDFA) and Brillouin gain in the optical fiber to encompass the multi-wavelength laser. By adjusting the pump power, you can easily control the number of laser channels in the BEFL that are used to pump the erbium-doped fiber for precise control of the optical sockets. Since in this case the wavelength spacing of 0.089 nm between adjacent channels is very small, an adequate adjustment of the filter discernment can be achieved. In Figure 1 The BEFL consists of a standard single-mode fiber (SMF) of a length of 5 km and an EDF of a length of 10 m, confined between two Faraday mirrors. To provide pump energy to the EDF, a 980 nm laser diode was used. A tunable laser source such as the Brillion pump (BP) was coupled to the cavity via a 3 dB coupler [2]. Adjusting the power of the EDF pump adjusts the number of output wavelengths accordingly, while varying the BP wavelength changes the output wavelengths of the laser. To modify the spectral profile of the BEFL, the programmable spectral processor (PSP) [2] is used. The radio frequency (RF) signal from a network analyzer that.