Semiconductor quantum well membranes for tunable coherent waveguide laser arrays

Jake Daykin; Nicholas T. Klokkou; Stephen C. Richardson; Jonathan R. C. Woods; Roman Bek; Jon Gorecki; James S. Wilkinson; Michael Jetter; Peter Michler; Vasilis Apostolopoulos

doi:10.1117/12.2655948

17 March 2023 Semiconductor quantum well membranes for tunable coherent waveguide laser arrays

Jake Daykin, Nicholas T. Klokkou, Stephen C. Richardson, Jonathan R. C. Woods, Roman Bek, Jon Gorecki, James S. Wilkinson, Michael Jetter, Peter Michler, Vasilis Apostolopoulos

Author Affiliations +

Proceedings Volume 12404, Vertical External Cavity Surface Emitting Lasers (VECSELs) XII; 1240404 (2023) https://doi.org/10.1117/12.2655948
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We present coherent laser arrays in a silicon photonics compatible waveguide geometry in optically pumped semiconductor membrane quantum well lasers (MQWLs) on oxidised silicon and silicon carbide substrates. Real and reciprocal space imaging is used to investigate the emission of the laser arrays and mutual coherence is seen to be maintained while operating on single and multiple longitudinal modes in each cavity. Further, we investigate writing laser cavity arrays through micro-structuring of the MQWL and also through the utilisation of a spatial light modulator (SLM) to define areas of gain in the MQWL by shaping the pump beam.

Conference Presentation

Citation Download Citation

Jake Daykin, Nicholas T. Klokkou, Stephen C. Richardson, Jonathan R. C. Woods, Roman Bek, Jon Gorecki, James S. Wilkinson, Michael Jetter, Peter Michler, and Vasilis Apostolopoulos "Semiconductor quantum well membranes for tunable coherent waveguide laser arrays", Proc. SPIE 12404, Vertical External Cavity Surface Emitting Lasers (VECSELs) XII, 1240404 (17 March 2023); https://doi.org/10.1117/12.2655948

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