Data communication market and the telecommunications market has been the two major sources of demand for optical modules, the next three years building and the development of 5G cloud computing industry needs more stimulating light module. The world's optical module business in this context, the ongoing mergers and acquisitions, vertical integration of the industry chain, industry concentration can be further improved.
Optical module main power chip, for example a coherent devices, modem chips, almost dependent on imports. In the portion of the light, 2.5G and 10G short distance of the product, it has been achieved domestically, or other materials to rely on imports. among them:
Electric chip (modulation drive, serial to parallel conversion, etc.) related manufacturers have Macom, semtech, sillconlabs, Maxim like; light portion (laser, detector) related manufacturers Sumitomo, Mitsubishi, lumentum, Oclaro, Neophotonics the like; major domestic there is a low-end components manufacturers in the light of the core subjects, is the source of Chinese workers, and other Accelink; optical module industry leading companies including Avago, source Photonics, Gigalight WTD and so on. 
The following is a summary of the small series of the world's leading optical module companies list (in alphabetical order):
（1）Avago
Avago established in 1961, is a design, research and development and to provide a variety of global customers a wide range of analog semiconductor equipment suppliers, the products are mainly used in application areas of wireless and wireline communications, industrial, automotive, and consumer electronics such as computers and terminals and storage market.
（2）Source Photonics
Source Photonics was founded in 2007 by MRV Communica TIons, Inc.'S two wholly owned subsidiaries Luminen TInc. And FiberxonInc. Merger. The company is headquartered in California, it is a leading supplier of optical communication products, and its products are widely used in telecommunication systems and data communication networks.
(3) Gigalight https://www.gigalight.com/cn/
Shenzhen-filled Communication Technology Co., Ltd. (Gigalight) was established in 2006, is committed to being the world's best optical network middleware providers and a master of design, deliver cost-effective Internet operators, telecom operators and network communications equipment manufacturers products and services. DCI company key focus optical interconnection, high-definition video optical transmission, 5G optical network, optical coherent optical communication and a silicon chip integration, the main products include optical modules, an active optical cable, wiring of MPO system, passive devices, coherent light and optical modules cloud platform.
(4) is the source of laborers
HG is the source was established in 2001, is a wholly owned subsidiary of laborers technology products, including semiconductor lasers and detectors die, optoelectronic devices, optical transceiver modules three series, mainly used in digital, analog communication and optical sensing fields .
（5）WTD
WTD was established in 1980, a wholly owned subsidiary Accelink, the company is mainly engaged in semiconductor lasers for optical communication components, detector assembly, light-emitting / receiver module, optical transceiver module, R & D, production and sales. Basic products to cover various rates for transmission and data communications, different packages of active modules, mainly used in transmission networks, data networks, access networks.
Chinese optical communications business continues to rise, China's optical components companies account for about 15% of global market share, the relatively high passive competitiveness, while China optical module vendors will occupy over 20% of global market share.