Single-section mode-locked 1.55-mu m InAs/InP quantum dot lasers grown by MOVPE
Single-section mode-locked 1.55-mu m InAs/InP quantum dot lasers grown by MOVPE
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MOVPE 生长的单节锁模 1.55 μm InAs/InP 量子点激光器
DOI：
10.1016/j.optcom.2016.02.061
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发表时间：
2016
影响因子：
2.4
通讯作者：
Yang Tao
中科院分区：
文献类型：
--
作者：
Gao Feng;Luo Shuai;Ji Hai-Ming;Liu Song-Tao;Lu Dan;Ji Chen;Yang Tao
报道了基于金属-有机气相外延生长的自组装InAs/InGaAsP/InP量子点有源区的1.55μm超短脉冲单段锁模激光器。对于1.5 mm长的法布里-珀罗激光器，在没有任何外部脉冲压缩技术的情况下，获得了重复频率29.8 GHz、脉冲宽度855 fs的锁模。跳模显示出小于30 GHz的窄线宽，并且只需改变注入电流就可以实现高达73 MHz的宽频率调谐范围。此外，用较短的腔长0.8 GHz的器件获得了55.6 GHz的高重复频率和707 GHz脉冲宽度的变换极限高斯脉冲。
We report on ultra-short pulse single-section mode-locked lasers emitting at 1.55 μm, based on self-assembled InAs/InGaAsP/InP quantum dot active regions grown by metal-organic vapor phase epitaxy (MOVPE). For a 1.5-mm-long Fabry-Perot laser, mode-locking at a repetition rate of 29.8 GHz with pulse duration of 855 fs is obtained without any external pulse compression techniques. The mode-beating exhibits a narrow RF linewidth less than 30 kHz, and a wide frequency tuning range up to 73 MHz can be achieved by simply changing the injection current. Moreover, a higher repetition rate of 55.6 GHz and the transform limited Gaussian-pulse with the 707 fs pulse duration are achieved from a device with a shorter cavity length of 0.8 mm.