Dual-Wavelength DFB Laser with 1.28 THz Frequency Spacing Based on Four Phase Shifted Sampling Gratings
2022 IEEE Photonics Conference (IPC)（2022）
Abstract
A 1.55 $\mu$m dual-wavelength DFB laser with a frequency spacing of 1.28 THz using a four phase shifted sampled Bragg grating is demonstrated. The grating coupling coefficient is 2.83 times that of conventional sampled Bragg gratings while the frequency spacing resolution can reach 0.83 GHz.
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