Comparison of Gain Measurement Techniques for Characterization of Quantum Dot Lasers
Journal Title: Mehran University Research Journal of Engineering and Technology - Year 2016, Vol 35, Issue 4
Abstract
This paper presents a comparative analysis of three gain measurement methods which are H&P (Hakki & Paoli), SC (Segmented-Contact) and IA (Integrated-Amplifier) for the gain characterization of 1300nm (O-band) InAs/GaAs QD (Quantum Dot) laser devices. In this case, during continuous mode operation at a fixed heat-sink temperature of 17oC, the experimental conditions, measured spectral ranges and signal to noise ratio are compared and advantages are discussed. The devices used for the analysis are fabricated as multi-section, single mode structures. Before self-heating, each of the methods show identical results but SC proved to be better in terms of accuracy of internal loss measurement. The H&P method has been shown the only choice for high current density gain measurements at a fixed junction temperature under consideration. The method to remove self-heating effects via H&P is also discussed and via this method a high current density gain analysis upto 5.5kA/cm2(~ 8e-h pairs)is performed under 30oC fixed junction temperature condition. In comparison to other methods, the IA method has shown to be advantageous in terms of low current density measurements exhibiting the capability of accessing wider spectral ranges and performing the gain characterization where laser material operates in loss.
Authors and Affiliations
Hifsa Shahid
Keywords
Related Articles
- EP ID EP183653
- DOI -
- Views 97
- Downloads 0
Detection and Classification of Rice Diseases: An Automated Approach Using Textural Features
Image processing techniques are widely used for the detection and classification of diseases for various plants. The structure of the plant and appearance of the disease on the plant pose a challenge for image processing...
Polycaprolactone-Polydiacetylene Electrospun Fibers for Colorimetric Detection of Fake Gasoline
PCDA (Pentacosadiynoic Acid) monomers were successfully embedded in PCL (Poly ?-Caprolactone) polymer matrix by electrospinning process for the first time. The resultant EFM (Electrospun Fibers Mat) was photo-polymerized...
Performance Analysis of a Savonius Wind Turbine in the Solar Integrated Rotor House
Rooftop, building integrated and building augmented micro wind systems have the potential for small scale power generation in the built environment. Nevertheless, the expansion of micro wind technology is very slow and i...
Urban Land Use Planning Trend and Sustainable Challenges in Socio-Economic Development
Land use planning is a technical approach for developing and managing the land into various public interests to endorse sustainable socio-economic development. This paper focuses on socio-economic problems by improper al...
Peculiarities of Printing on Paper with Addition of Licorice Cellulose
This study examines the possibility of using paper based on lint cellulose with addition of licorice cellulose for printing. The physical, mechanical and printing characteristics of paper, were studied towards this end....