chen hai-bo, yang hua, chen jian-guo, et al. Spectra of diode laser array operating in external cavity[J]. High Power Laser and Particle Beams, 2005, 17.
Citation:
chen hai-bo, yang hua, chen jian-guo, et al. Spectra of diode laser array operating in external cavity[J]. High Power Laser and Particle Beams, 2005, 17.
chen hai-bo, yang hua, chen jian-guo, et al. Spectra of diode laser array operating in external cavity[J]. High Power Laser and Particle Beams, 2005, 17.
Citation:
chen hai-bo, yang hua, chen jian-guo, et al. Spectra of diode laser array operating in external cavity[J]. High Power Laser and Particle Beams, 2005, 17.
Using a high reflectivity mirror as the external cavity of a 19-unit diode laser array(LDA), the optical beam from the LDA can be coupled into itself by adjusting the distance and tilting angle of the external mirror. The bandwidth of the LDA was narrowed down and its threshold current was reduced. With the external feedback, the spectra of the LDA at different drive currents were narrowed to about the tenth of that without feedback, the threshold current decreased from 7 A to 5.5 A, and the output power increased by two times.
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