<p>The rapidly growing demand for high-speed optical communication systems (OCS) leads to the trend of DC (direct current)-biased optical systems (OS). Consequently, these approaches face the fundamental problem of having a PAPR, which can severely hamper performance and communication efficiency. This paper suggests a new approach termed as bonobo optimization-partial transmit sequence (BO-PTS) that deals with PAPR in direct transmission OS. It also improves the decrease of excessively high PAPR in optical OFDM (optical orthogonal frequency division multiplexing) communications. Proposed BO-PTS combines the bonobo optimization (BO) set of rules and the partial transmit technique (PTS). BO-PTS allows section factors to adjust to reduce PAPR, which results in an enhanced signal-to-best-rate in OCS. The BO of rule, as learned from bonobo social behaviors, pragmatically strives to find solutions to the different forms of problem. PTS brings the different parts of data blocks into smaller sub-blocks (SB) for the rotational aspect software, which lowers the PAPR. The outcomes show that BO-PTS attains a PAPR of 8.15 dB at CCDF = 10⁻³ with 40% faster convergence and a computational complexity of 125 and one-sample test indicating that BO-PTS outperforms the existing techniques in terms of PAPR reduction, and this is shown in complementary cumulative distribution function (CCDF) curves. Moreover, the convergence rate (CR) evaluation illustrates BO-PTS offering superior convergence performance against other existing techniques. BO-PTS presents an interesting method of PAPR imbalance in optical OFDM signals, thereby improving signal balance and the overall transmission performance in OCS.</p>