Chip absorption spectrum measuring method, device and equipment and storage medium

Abstract

The invention discloses a chip absorption spectrum measurement method, device and equipment, and a storage medium. A chip comprises an emission optical device and an absorption optical device. The transmitting optical device is used for transmitting an optical signal to the absorbing optical device; the method comprises the following steps: controlling an emission optical device to emit an opticalsignal to an absorption optical device; controlling an absorption optical device to absorb the emitted optical signal, and collecting a light absorption spectral line of the absorption optical device; and determining a light absorption spectral line of the chip based on the light absorption spectral line of the absorption optical device. In this way, an optical signal can be directly emitted to the absorption optical device through the emission optical device of the chip so as to acquire the light absorption spectral line of the absorption optical device. Since the light absorption capabilityof the chip mainly depends on the light absorption capability of the absorption optical device, the light absorption spectral line of the chip can be determined according to the light absorption spectral line of the absorption optical device.

Description

technical field [0001] The present application relates to absorption spectrum measurement technology, in particular to a method, device, equipment and storage medium for measuring chip absorption spectrum. Background technique [0002] Electroabsorption Modulated Distributed FeedbackLaser (EML) is widely used in optical communication networks due to its low cost, low power consumption, and easy integration with other optoelectronic devices (such as photodetectors, semiconductor optical amplifiers, and couplers). middle. At present, 10-Gb / s EML chips are widely used as emission light sources in medium-distance (40km) and long-distance (80km) optical communication networks, and 40-Gb / s EML chips are also used in short-distance (2km) in the optical communication network. In addition, 4-channel 25-Gb / s EML chip arrays have also been used in 100-Gb / s Ethernet systems. [0003] The EML chip is an integrated device of an electro absorption modulator (Electro Absorption Modulator...

AI Technical Summary

Problems solved by technology

Although the EAM is an absorbing device, the EML chip is not an absorbing chip, so the active area of ​​the end face of the EAM is very small, and it is difficult to couple the laser emitted by the tunable laser into the EAM.

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