25 Gbaud 850 nm VCSEL for an Extended Temperature Range
Artikel i vetenskaplig tidskrift, 2025
We investigate the performance of a 25 Gbaud 850 nm vertical-cavity surface-emitting laser (VCSEL) with reduced temperature dependence from −40 to 125 °C. The VCSEL design implements chirped quantum wells (QWs) with different compositions to broaden the gain spectrum and achieve sufficient
performance over the entire temperature range at constant bias current and modulation voltage. A 6μm oxide aperture diameter VCSEL supports data transmission at 25 Gb/s NRZ from −40 to 125 °C with 8 mA bias current and 640 mV modulation voltage. The temperature dependencies of basic performance parameters are also compared to those of a conventional VCSEL with identical QWs.
performance over the entire temperature range at constant bias current and modulation voltage. A 6μm oxide aperture diameter VCSEL supports data transmission at 25 Gb/s NRZ from −40 to 125 °C with 8 mA bias current and 640 mV modulation voltage. The temperature dependencies of basic performance parameters are also compared to those of a conventional VCSEL with identical QWs.
wide-temperature performance
chirped QWs.
optical interconnects
Vertical-cavity surface-emitting lasers
Författare
Hans Kaimre
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Alexander Grabowski
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Johan Gustavsson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Anders Larsson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
IEEE Photonics Technology Letters
1041-1135 (ISSN) 19410174 (eISSN)
Optiska länkar för krävande datormiljöer
Stiftelsen för Strategisk forskning (SSF) (CHI19-0004), 2021-01-01 -- 2025-12-31.
Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier (SSIF 2025)
Atom- och molekylfysik och optik
Annan elektroteknik och elektronik
Kommunikationssystem
Telekommunikation
Annan fysik
Infrastruktur
Myfab (inkl. Nanotekniklaboratoriet)
DOI
10.1109/LPT.2025.3547156