Comparative analysis of energy-efficient long wavebands vertical cavity surface emitting lasers

Sandeep Dahiya; Hemant Kumar Mishra; Suresh Kumar; Brajesh Kumar Kaushik

doi:10.1117/12.2237617

26 September 2016 Comparative analysis of energy-efficient long wavebands vertical cavity surface emitting lasers

Sandeep Dahiya, Hemant Kumar Mishra, Suresh Kumar, Brajesh Kumar Kaushik

Proceedings Volume 9931, Spintronics IX; 99310D (2016) https://doi.org/10.1117/12.2237617
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Vertical cavity surface emitting laser (VCSEL) is an important laser source for their evident plentiful applications in optical communication. The present investigation reports a comparison of the modeling and optimization of long wavelengths 1310 nm and 1550 nm high speed short cavity VCSEL for continuous wave operation at various temperature (283-3230K) for various diameters. The continuous wave lasing is demonstrated for the device diameter from 2 to 5 μm with threshold current of 1.07-1.33 mA with threshold power consumption of 1.86-2.57 mW for 1310 nm and threshold current of 0.94-1.24 mA and threshold power consumption 1.67-2.1 mW for 1550 nm VCSEL. The results demonstrate that the threshold current, peak emitted power and power consumption increases with the increase in device diameter. The results confirm that VCSELs with 2 μm diameter is most suitable to achieve energy-efficient operation. Although rollover current increases with the diameter, but, due to the advantage of lower threshold current and power consumption, VCSEL having smaller diameter is best suited. The power conversion efficiency for proposed long wavelength VCSELs is approximately 50% which is extremely useful for low power applications. The proposed VCSELs are suitable for very short reach (<2 m) optical interconnects such as chip-to-chip and board-to-board communication in high performance computers.

Conference Presentation

Citation Download Citation

Sandeep Dahiya, Hemant Kumar Mishra, Suresh Kumar, and Brajesh Kumar Kaushik "Comparative analysis of energy-efficient long wavebands vertical cavity surface emitting lasers", Proc. SPIE 9931, Spintronics IX, 99310D (26 September 2016); https://doi.org/10.1117/12.2237617

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