Widely Tunable Semiconductor Laser Based on Digital Concatenated Grating With Multiple Phase Shifts
In this paper, we proposed a widely tunable distributed Bragg reflector (DBR) laser based on digital concatenated grating with multiple phase shifts (MPS-DCG).The MPS-DCG can provide a comblike reflectivity spectrum with flat envelop covering over 100-nm wavelength range.Static characteristics of the MPS-DCG DBR laser, including the stickers logos