Novel >57 GHz bandwidth O-band InGaAlAs MQW RW DFB

We present a novel Dual DFB laser for high-speed direct modulation. The design comprises two identical quarter-wavelength shifted DFBs in mirrored configuration separated by a passive waveguide. This structure utilizes the effect of photon-photon resonance to increase the modulation bandwidth of 57....

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Bibliographic Details
Main Authors: Vasudevan Rajeswari, Gayatri, Möhrle, Martin, Ehrensack, Falco, Troppenz, Ute, Sigmund, Ariane, Schell, Martin
Format: Conference Object
Language:English
Published: 2023
Subjects:
directly modulated laser (DML)
distributed feedback (DFB) lasers
high-speed transmitter
multi-section lasers
optical fiber communication
photon photon resonance (PPR)
semiconductor laser
DML
Online Access:https://publica.fraunhofer.de/handle/publica/449520
https://doi.org/10.1117/12.2656921
Description
Summary:We present a novel Dual DFB laser for high-speed direct modulation. The design comprises two identical quarter-wavelength shifted DFBs in mirrored configuration separated by a passive waveguide. This structure utilizes the effect of photon-photon resonance to increase the modulation bandwidth of 57.6GHz. Operation of these devices under large signal modulation at 56Gbps and 72Gbps is demonstrated.

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