Application of sampled grating to control the lasing wavelength in complex-coupled DFB laser

A complex-coupled DFB Laser with the sampled grating has been designed and fabricated. The +1st order reflection of the sampled grating is utilized for laser single mode operation, which is 1.5387μm in the experiment. The typical threshold current of the device is 30mA, and the optical output power is about 10mW at the injected current of 100mA.

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