Arrayed waveguide grating and tunable laser with the arrayed waveguide grating

Abstract

An array waveguide grating (AWG) (30) and tunable laser (1000) having the same; the AWG (30) comprises an input coupler (31), a first array waveguide area (33) and a second array waveguide area (34); the first array waveguide area (33) comprises a plurality of first waveguides (331), and the neighboring first waveguides (331) have a first optical path difference; the second array waveguide area (34) comprises a plurality of second waveguides (341), and the neighboring second waveguides (341) have a second optical path difference, and the first optical path difference is not equal to the second optical path difference.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to an arrayed waveguide grating and a tunable laser with the arrayed waveguide grating. Background technique [0002] Large-capacity high-speed optical transmission and more flexible optical network structure are the development trend of optical communication. At present, the 100G technology using high-order modulation and coherent reception has entered the commercial stage and has become one of the trends in the industry. With the deployment of 100G coherent systems, the first-generation standard optical modules cannot meet the requirements in terms of size and power consumption, and have become a bottleneck for improving the integration density of optical modules. Therefore, the development of optical modules with miniaturization and low power consumption is of great significance. [0003] At present, an existing solution is to use planar optical waveguide technology to manu...

AI Technical Summary

Problems solved by technology

However, most of these tunable lasers have problems such as high requirements on the manufacturing process, high manufacturing costs, difficulty in achieving continuous wavelength tuning, and limited tuning range, which cannot meet the requirements of use.

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