Method and device for controlling operating temperature of optical assembly, optical assembly and optical network system

Abstract

Disclosed are a method and device for controlling the operating temperature of an optical assembly, an optical assembly and an optical network system. The method comprises: acquiring an external ambient temperature of an optical assembly; setting a target control temperature of a temperature controller according to the external ambient temperature, the target control temperature being a function value of the external ambient temperature, and the target control temperature being within a range from a lower limit of the operating temperature of a laser to an upper limit of the operating temperature of the laser; and according to the target control temperature, controlling the operating temperature of the optical assembly by means of heating or refrigeration by the temperature controller. By means of the method and device for controlling the operating temperature of an optical assembly, the optical assembly and the optical network system, the target control temperature of the temperature controller can be adjusted in real time by acquiring the external ambient temperature of the optical assembly and setting the target control temperature of the temperature controller according to the external ambient temperature, thereby reducing a control current of the temperature controller, and thus the power consumption of the temperature controller can be reduced.

Description

technical field [0001] The invention relates to the field of optical networks, in particular to a method, a device, an optical component and an optical network system for controlling the working temperature of optical components in the field of optical networks. Background technique [0002] 10G passive optical network (Passive Optical Network, referred to as "PON") includes 10G Ethernet passive optical network (10Gbit / SEthernet Passive Optical Network, referred to as "10GEPON") and 10G bit passive optical network (10-Gigabit-capablePassiveOpticalNetwork, referred to as " XGPON"). The standard organization defines that an optical line terminal (Optical Line Terminal, “OLT” for short) of the 10G passive optical network adopts an optical signal with a wavelength of 1577 nm and a wavelength range of 1575 nm˜1580 nm. In order to meet the above requirements, the laser of the 10G passive optical network needs to use an electric absorption modulated laser (ElectricityAbsorbModulat...

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Problems solved by technology

Therefore, in order to ensure that the EML laser works at a constant temperature, the power consumption of the TEC is very large

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