The optical module (optical module) is composed of optoelectronic devices, functional circuits and optical interfaces. The optoelectronic device includes two parts: transmitting and receiving.
Simply put, the function of the optical module is to convert the electrical signal into an optical signal at the transmitting end, and after transmitting through the optical fiber, the receiving end converts the optical signal into an electrical signal.
The optical module is an optoelectronic device that performs photoelectric and electro-optical conversion. The transmitting end of the optical module converts electrical signals into optical signals, and the receiving end converts optical signals into electrical signals. Optical modules are classified according to the packaging form. Common ones include SFP, SFP+, SFF, Gigabit Ethernet Interface Converter (GBIC), etc.
The transmitting part is: the electrical signal with a certain code rate is processed by the internal drive chip and then drives the semiconductor laser (LD) or light-emitting diode (LED) to emit the modulated light signal of the corresponding rate. The internal optical power automatic control circuit makes The output optical signal power remains stable. Sfp Module,Scodeno Sfp Transceiver,Scodeno Optical Transceiver,Gpon Optical Sfp Module Shenzhen Scodeno Technology Co.,Ltd , https://www.scodenonet.com
Guanglei, Lite-On, Yiguang and Jintai Electronics, etc., in February 2008, Gertrude Neumark Rothschild, a retired professor at Columbia University, infringed on LED patents and filed with the US Trade Commission (ITC). Investigate, the relevant Taiwanese factories in the Industrial Bureau and the Industrial and Technological Research Institute Optoelectronics Industry Association to set up a project team to assist, the professional law firm to conduct infringement litigation and settlement conditions agreement, most manufacturers to save money and time costs. In the 337 investigation, a total of 34 defendants from Taiwan and foreign companies in the middle and lower reaches of the LED patent were used. The LED industry in Taiwan, such as Yiguang and Jingdian, mostly choose to reconcile. More specifically, some LED companies have joined forces to jointly appoint lawyers, share resources and evidence, and jointly share legal fees, which is estimated to save up to 70%. lawyer fee. The Optoelectronics Semiconductor Industry Association said that in the United States, litigation and finding a first-class firm must have at least $5 million in legal fees. Through the joint model, it can save 50% to 70% of legal fees compared with manufacturers. In terms of settlement funds, if the revenue of infringing products is estimated to be 2% to 3%, each industry will pay a settlement fee of about several hundred thousand to several million Taiwan dollars, compared with the litigation costs of hundreds of millions of yuan. It prompted Taiwanese companies to choose more settlements.
Taiwan's LED industry chain is complete. Since 2000, its output has been ranked first in the world and second in the world in terms of output value. In 2007, the global LED production value was 6.678 billion US dollars, and Taiwan's LED output value reached 1.683 billion US dollars, accounting for 25.2% of the world. Therefore, it is easy to become the target of patentee litigation. The Taiwan Industrial Bureau estimates that Taiwan's LED output value will reach NT$2,859 million in 2010, and its potential is staggering. It is currently tutoring Lianzhao and Weili League to invest in R&D, expansion and equipment purchase, and promote investment of about 225 million yuan.
The Taiwan Industrial Technology Research Institute said that the ITC investigation required the defendant to respond within 40 days. The ad hoc group gathered the consensus of the manufacturer and appointed the US professional lawyers to assess the risks and costs of the defense and reconciliation programs to solve the problem. Through the neutral nature of the association, R, the information provided by the industry, the evidence collected by the lawyers can be exchanged and shared, the attorney fees can be shared, and the model will be copied to other industries in the future to solve the patent litigation problem.
According to the blending, many manufacturers in mainland China have falsely reported that the Chinese mainland government has decided to upgrade to the national level, as a follow-up response, and that there is a determination to prepare for the final, which is different from the model handled by the industry in Taiwan. 
The receiving part is: the optical signal of a certain code rate is input into the module and then converted into an electric signal by the light detection diode, and the electric signal of the corresponding code rate is output after the preamplifier.
Taiwan LED industry in the United States accused of infringement case and settlement
In the LED patent case, many LED operators have chosen to settle. The Industrial Bureau of the Ministry of Economic Affairs of Taiwan stated that the project team set up by the Ministry of Economic Affairs and the Industrial Technology Research Institute has assisted many LED industry players to share the resource sharing model and settle the dispute with the plaintiff. It is estimated that 70% of the lawyers’ fees will be saved. The model assists other industries.