Thanks and appreciation letter were given to Prof. Dr. Jassim Kadhim Hmood - Head of the Laser and Optoelectronics Engineering Department by Elsevier for his efforts in publishing in one of their journals which is (optical fiber technology) the paper entitled (Performance analysis of mode division multiplexing system in presence of nonlinear phase noise). The researcher, along with other researchers affiliated to the Department of Laser and Optoelectronics Engineering, had published a distinguished research in optical communication, in which a new technology in optical communication was proposed and presented that reduces the effect of nonlinear noise and increases the speed and range of optical communication systems that use multiplexing and mixing of laser patterns that carry Information at very large capacities, amounting to more than 300 kbps, is transmitted through the optical fiber of the low-type fiber.