Enhanced ultra-wideband optical frequency comb generation based on cross-polarization modulation effect of semiconductor optical amplifier

In this manuscript, an efficient optical frequency comb (OFC) relies on cross polarization modulation (XPolM) in semiconductor optical amplifier (SOA) is proposed. The proposed setup generates ultra flat and broad frequency spectrum which is proficient to generate 103 comb lines with 2.75 dB average power deviation having bandwidth of 516 GHz. The generated comb spectrum has 50, 21, 20 and 12 lines with maximum power deviation 0 dB, 0.4 dB, 2dB and 3dB respectively. The performance of proposed OFC generator is analysed analytically with differential gain, carrier density, injection current, confinement factor, active layer length, width and linewidth enhancement factor of SOA along with its state of polarization (SOP). Also, the state of polarization of obtain OFC is analysed with iterative value of SOA parameter. The proposed optical frequency comb is efficient in field of radio frequency photonics, high speed optical communication, quantum optics.