InAs/GaAs QD comb laser

Feedback-immune stable comb

Maintains stable multi-wavelength output under strong optical feedback without isolators, with significant low-frequency noise suppression for high-speed transmission.

Xiangru, Cui · Chen, Jiajian · Huang, Jingzhi · Yang, Bo · Qin, Jiale · Wenlu, Wang · Duan, Jianan · Ting, Wang · Wang, Zihao · Zhang, Jianjun

APL Photonics 2024

Specifications

Stable optical spectra

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in low-frequency range

{'zh': '<1', 'en': '<1'} GHz

of magnitude under

{'zh': '', 'en': '10'} dB

Advantages

Clear eye openings at 25 Gbps