Thermal resistance reduction in high power superluminescent diodes by using active multi-mode interferometer

Zhigang Zang, Keisuke Mukai, Paolo Navaretti, Marcus Duelk, Christian Velez, Kiichi Hamamoto

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Abstract

Low thermal resistance of high power superluminescent diodes (SLEDs) by using active multi-mode interferometer (active-MMI) is presented in this paper. The active layer temperature evaluation demonstrates that the power saturation mechanism in active-MMI SLED is heat for the first time. Low thermal resistance of 4.83 K/W in active-MMI SLEDs leads to a high power of 115 mW. Moreover, the effect of the active area size on the output power is demonstrated both experimentally and theoretically. Good agreement between the theoretical and experimental results indicates that active-MMI configuration is a new design in support of efficient heat dissipation and thermal resistance reduction for SLEDs.

Original languageEnglish
Article number031108
JournalApplied Physics Letters
Volume100
Issue number3
DOIs
Publication statusPublished - Jan 16 2012

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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