Optical and RIN Spectrum Improvements in Necked Waveguide High-Power DFB Laser Diode
نویسندگان
چکیده
A novel high power distributed feedback (DFB) laser is proposed which uses a partially narrow waveguide and corrugation pitch modulated (CPM) phase shift grating. Compared with conventional DFB lasers constant width, these necked have greater improvements in terms of optical relative intensity noise (RIN) spectrum. They are less sensitive to external (EOF) increase the range injection current for single longitudinal mode (SLM) operation. It can not only suppress multimode lasing state under EOF intensity, but also realize SLM operation RIN < −135 dB than −15 150 mA ~ 350 mA. Therefore, was increased continuous wave (CW) light sources silicon-based hybrid photonic integration applications.
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ژورنال
عنوان ژورنال: IEEE Photonics Technology Letters
سال: 2022
ISSN: ['1941-0174', '1041-1135']
DOI: https://doi.org/10.1109/lpt.2022.3150799