Sub-harmonic mode-locking of VCSEL with a concave external mirror

[摘要] References(3)We designed a composite resonator VCSEL using a VCSEL chip and a concave external mirror for mode-locking to produce optical clock signals and demonstrated the operation experimentally. A very low threshold current was successfully realized by using a proper reflectivity of VCSEL and the external mirror and by achieving efficient feedback using a concave external mirror. Using a concave mirror with the curvature radius of 14.12mm, sub-harmonic active mode-locking was achieved at a repetition rate of 10.56GHz, which corresponded to the external cavity length.

[学科分类] 电子、光学、磁材料

[关键词] VCSEL;mode-locked laser diode;external cavity