Investigation on the thermal properties of volume Bragg grating in laser diodes with external cavities

Thermal control of the volume Bragg grating (VBG) in the laser diode (LD) with the external cavity is critical for the tuning of the wavelength and the narrowing of the bandwidth. Based on finite element theories, thermal properties of the VBG were researched under different conditions of the LD ill...

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Bibliographic Details
Published in:Optical engineering 2016-08, Vol.55 (8), p.086112-086112
Main Authors: Li, Zhiyong, Tan, Rongqing, Huang, Wei, Ye, Qing, Han, Gaoce, Li, Hui, Zheng, Yijun
Format: Article
Language:English
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Summary:Thermal control of the volume Bragg grating (VBG) in the laser diode (LD) with the external cavity is critical for the tuning of the wavelength and the narrowing of the bandwidth. Based on finite element theories, thermal properties of the VBG were researched under different conditions of the LD illuminated area, laser power, gratings' working temperature, and heat convection. Both the VBGs in the external cavity of the LD bar and stack were considered in the experiments. The results show that higher working temperature of the VBG and adopting better heat convection cooling methods are beneficial to realize the uniformity of the VBG temperature distribution.
ISSN:0091-3286
1560-2303
DOI:10.1117/1.OE.55.8.086112