The method comprises the following steps: a reflection filter vertical to the optical axis of a second lens is arranged; an optical fiber splitter is arranged at an optical fiber interface end of an optical fiber adapter, one interface end of the optical fiber . The method comprises the following steps: a reflection filter vertical to the optical axis of a second lens is arranged; an optical fiber splitter is arranged at an optical fiber interface end of an optical fiber adapter, one interface end of the optical fiber . The Printed Circuit Board (PCB) at the heart of these modules is no longer a simple substrate but a highly engineered system. Designing and producing these complex PCBs presents formidable challenges, requiring a convergence of disciplines—from high-frequency signal integrity and advanced thermal. The Transmitter Optical Sub Assembly (TOSA) is responsible for the emission of light. Its primary function entails converting electrical signals into optical signals. This assembly comprises a light source, such as a laser diode or a semiconductor light-emitting diode (LED), an optical interface, a. Optical fiber cable carries information encoded in light pulses over long distances with lower signal loss compared to electrical cables. Among various optical module form factors, SFP (Small Form-Factor Pluggable). Optical Assemblies: A Professional's Guide to Precision Bonding - INCURE INC.