Low-power-consumption modulation of short-cavity DBR laser on SiO2/Si substrate.
Opt Express
; 32(8): 14746-14754, 2024 Apr 08.
Article
em En
| MEDLINE
| ID: mdl-38859411
ABSTRACT
We developed short-active-length distributed Bragg reflector (DBR) lasers to reduce the power consumption of chip-to-chip optical interconnects. These lasers have buried bulk InGaAsP waveguides to increase the coupling efficiency between the active region and DBR to 99.79% from the 98.14% of our previous DBR lasers that had InP channel waveguides. We achieved continuous wave operation of 5- to 80-µm active-length DBR lasers and the 5-µm-long laser consumed 24 fJ/bit with a 10-Gbps NRZ signal. The threshold current of the 5-µm laser was 51 µA, which compares favorably to our previous 10-µm DBR lasers with a threshold current of 170 µA.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article
País de publicação:
EEUU
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ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA