Abstract
Laser diodes are widely used in our daily life due to their light weight, low cost, high luminous efficiency, and easy adjustment of power through driving current. However, their laser frequencies are easily affected by the environment temperature and the injection current, hence it cause them to be unstable, in addition, the laser gain curve often has a large linewidth, these characteristics make the research and application so inconvenient.
© 2018 The Japan Society of Applied Physics
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