Temperature characteristics of vertical-cavity surface-emitting lasers

Lin Li; Jing-chang Zhong; Ying-jie Zhao

doi:10.1117/12.577260

31 January 2005 Temperature characteristics of vertical-cavity surface-emitting lasers

Lin Li, Jing-chang Zhong, Ying-jie Zhao

Proceedings Volume 5624, Semiconductor and Organic Optoelectronic Materials and Devices; (2005) https://doi.org/10.1117/12.577260
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

The temperature characteristics of Oxide-confined VCSEL are described, these records of high operating temperature are caused by high characteristic temperature. The VCSEL device temperature is increased by heating from ambient temperature 20°C up to 100°C. The effect of temperature elevation increased from T₁ to T₂ on the threshold current I_th(T) is often described by a characteristic temperature. We obtain a function T₀(T) which decreases from 220K at 20°C temperature to 200K at 100°C. The essential improvements for the oxide-confined VCSEL in this work are focused on the following two points. First, we decrease the series resistance of the VCSEL. Secondly, the oxide-confined technique reduces defects and optical absorption in the active region. The oxide-confined is worthy to be used just because of its better confinements for both beam and current, easier processing, and lower cost. The fact that the device’s threshold current in pulse operation slightly depends on ambient temperature means that the VCSEL’s characteristic temperature (T₀) is higher.

Citation Download Citation

Lin Li, Jing-chang Zhong, and Ying-jie Zhao "Temperature characteristics of vertical-cavity surface-emitting lasers", Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); https://doi.org/10.1117/12.577260

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KEYWORDS

Vertical cavity surface emitting lasers

Temperature metrology

Resistance

Absorption

Gallium

Mirrors

Active optics

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