Wavelength tunable semiconductor laser
A technology of lasers and semiconductors, applied in the direction of semiconductor lasers, lasers, laser components, etc., can solve the problems of insufficient modulation rate and inability to meet the needs of light sources, reduce precision requirements, increase direct modulation bandwidth, and improve process error tolerance limited effect
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[0030]In order to make the objectives, technical solutions and advantages of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely intended to illustrate the invention and are not intended to limit the invention.
[0031]It is an object of the present invention to provide a wavelength adjustable semiconductor laser, tuning through the phase region and grating region, can change the amount of shot phase condition of the laser to achieve the tuning of the swelling wavelength. At the same time, the depression introduced by the phase shift section is introduced into a secondary mode to generate a PPR effect, which greatly improves the direct modulation bandwidth of the laser. The present invention can not only tune the tuning of an ejection wavelength of about 7.5 nanometers, but also achieve direct modulation bandwidth...
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