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

Gayatri Vasudevan Rajeswari; Martin Moehrle; Falco Ehrensack; Ute Troppenz; Ariane Sigmund; Martin Schell

doi:10.1117/12.2656921

15 March 2023 Novel >57 GHz bandwidth O-band InGaAlAs MQW RW DFB

Gayatri Vasudevan Rajeswari, Martin Moehrle, Falco Ehrensack, Ute Troppenz, Ariane Sigmund, Martin Schell

Author Affiliations +

Proceedings Volume 12440, Novel In-Plane Semiconductor Lasers XXII; 1244007 (2023) https://doi.org/10.1117/12.2656921
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We present a novel Dual DFB laser for high-speed direct modulation. The design comprises two identical quarter wavelengths 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 57.6 GHz. Operation of these devices under large signal modulation at 56 Gbps and 72 Gbps is demonstrated.

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Citation Download Citation

Gayatri Vasudevan Rajeswari, Martin Moehrle, Falco Ehrensack, Ute Troppenz, Ariane Sigmund, and Martin Schell "Novel >57 GHz bandwidth O-band InGaAlAs MQW RW DFB", Proc. SPIE 12440, Novel In-Plane Semiconductor Lasers XXII, 1244007 (15 March 2023); https://doi.org/10.1117/12.2656921

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