Generation of 10-GHz ultrashort pulse and flat optical comb using a semiconductor mode-locked laser

被引：0

作者：

Sun, Defan ^{[1
,2
,3
]}

Niu, Yueying ^{[1
,2
,3
]}

Guo, Fei ^{[1
,2
,3
]}

Zhang, Ruikang ^{[1
,2
,3
]}

Zhao, Lingjuan ^{[1
,2
,3
]}

Lu, Dan ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Optoelect Mat & Devices, Beijing 100083, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Beijing Key Lab Low Dimens Semicond Mat & Devices, Beijing 100083, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2025年 / 583卷

基金：

中国国家自然科学基金;

关键词：

Mode-locked laser; Optical frequency comb; Ultra-short pulse; Flat optical comb; Semiconductor laser; HIGH-PEAK-POWER; FREQUENCY COMB; QUANTUM-DOT; MW; DISPERSION;

D O I：

10.1016/j.optcom.2025.131655

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

-We report a C-band 10-GHz ultrashort pulse and optical comb generation using a quantum well (QW) semiconductor mode-locked laser (SMLL) operating at 1530 nm. With a dilute waveguide design, ultrashort pulses with pulse widths as short as 726 fs were also obtained from a 10-GHz SMLL without any compression, and the shortest pulse width of 576 fs was achieved after pulse compression. Direct generation of a flat comb with a -3-dB bandwidth of 9.92 nm (>125 comb lines in a span of 1.24 THz) and a -20-dB bandwidth of 19.22 nm (>240 comb lines in a span of 2.4 THz) was obtained. A further comb span extension was obtained by pumping a highly nonlinear fiber (HNLF) via the SMLL. A -20-dB bandwidth of 89.4 nm and a useable comb span of over 110 nm were demonstrated.

引用

页数：7

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