Abstract
The threshold gain temperature dependence of composite resonator vertical cavity laser (CRVCL), a dual-cavity version of the vertical cavity surface emitting laser (VCSEL) was investigated. The layers of CRVCL was consisted of a substrate, a highly reflective bottom distributive Bragg reflector (DBR), the active region of the bottom cavity, a middle DBR of 85% reflectivity, the active region of the upper cavity, and a atop DBR. When the top cavity had no applied bias, only the short wavelength mode operated, the threshold gain was relatively high, and the device stopped lasing around 55°c. It was observed that by increasing the fixed current, the range of temperatures, over which the long mode lases at threshold, was decreased.
Original language | English (US) |
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Article number | TuS1 |
Pages (from-to) | 322-323 |
Number of pages | 2 |
Journal | Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS |
Volume | 1 |
State | Published - 2004 |
Event | 2004 IEEE LEOS Annual Meeting Conference Proceedings, LEOS 2004 - Rio Grande, Puerto Rico Duration: Nov 7 2004 → Nov 11 2004 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering