Refrigeration-free tunable semiconductor laser based on multi-wavelength array and preparation method

Abstract

The invention discloses a refrigeration-free tunable semiconductor laser based on a multi-wavelength array. The refrigeration-free tunable semiconductor laser comprises a thermistor, a tunable laser array, a wave combining structure, an optical amplifier, an optical branching device, an optical detector and a main controller. According to the invention, when the laser is influenced by the externalenvironment temperature, the influence value caused by the external environment temperature is calculated, and the driving currents of the tunable laser array and the optical amplifier are respectively regulated and controlled according to the calculation result such that the purpose that the final output light is consistent with a theoretical light parameter is achieved. As no refrigeration equipment is adopted, the overall structure of the laser is greatly reduced, the preparation process is further simplified, and even a sealed packaging structure is not adopted such that the cost of a laser device is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a multi-wavelength array-based uncooled tunable semiconductor laser and a preparation method thereof. Background technique [0002] With the development of Internet technology and the emergence of 5G and artificial intelligence, the continuous increase of network data traffic, the continuous increase of access devices, the virtualization of content and servers, and the rapid growth of cloud services, the existing static network system due to its The network line is fixed and the traffic is not easy to adjust and distribute, which will face enormous pressure. In future network solutions, whether it is to expand data capacity, improve network flexibility, or dynamically change network architecture, it is necessary to use a large number of wavelength-tunable semiconductor lasers in network equipment. However, the current high price of commercially available tunable se...

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Problems solved by technology

In addition, due to the use of TEC, the laser device basically needs to adopt a hermetically sealed package structure. In addition to the complicated manufacturing process, it also increases the cost of the laser device.

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