30-nm Consecutive Discrete Tuning Range Semiconductor Laser with 100-GHz Channel Spacing Based on Slotted Structures Fabricated by Standard Contact Lithography

摘要

A widely tunable semiconductor laser based on slotted surface grating fabricated by standard contact lithography is presented. This regrowth-free tunable semiconductor laser shows a consecutive discrete tuning range over 30-nm with 100-GHz channel spacing.