Optical module and passive optical network with same

Abstract

The invention discloses an optical module and a passive optical network with the same. The optical module comprises a master control unit, an optical emitting component integrate with a temperature controller, a temperature controller driving unit and a wavelength tuning unit. By the wavelength tuning unit and the temperature controller driving unit in the optical module, the emitting wavelength of the optical module can be conveniently adjusted by the master control unit of the optical module, wavelength adjustment manner is simple, and difficulty and cost for building the network by optical modules are reduced.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a wavelength tunable optical module and a passive optical network with the optical module. Background technique [0002] Passive Optical Network (PON) is a point-to-multipoint optical fiber transmission and access technology, which originated in the mid-1990s. With the evolution of PON technology, broadband passive optical network (BPON), Ethernet passive Optical Network (EPON) and Gigabit Passive Optical Network (GPON) and other technologies. Passive optical network has developed rapidly because of its broadband, service integration, flexible networking capabilities, and low cost. At present, the commonly used passive optical networks are EPON and GPON. [0003] For EPON and GPON technologies, most of them adopt time-division multiple access (TDM) technology at present, which cannot well meet the rapidly increasing demands of users' bandwidth. Moreover, since the...

AI Technical Summary

Problems solved by technology

However, because the optical components with wavelength selection function are quite expensive, they are not suitable for use in ONU optical modules at the user end, so they cannot be widely promoted and applied.

Second, to assign a fixed wavelength to each ONU optical module, it is necessary to select an optical module with a specific receiving wavelength for each ONU at the user end. How many ONUs there are, how many optical modules with different structures and functions need to be selected, In addition, each optical module must correspond to the port of the optical multiplexing device during deployment, which leads to not only complex networking, but also inconvenient installation and maintenance, and because the optical modules used are not uniform, resulting in inventory and management costs greatly increase

Images