Experimental Research on Volume-Bragg-grating External Cavity Red-light Semiconductor Lasers

Rong-zhan, 刘荣战 Liu; Bao-xue, 薄报学 Bo; Na, 么 娜 Yao; Yu-meng, 徐雨萌 Xu; Xin, 高欣 Gao

doi:10.3788/fgxb20194011.1401

Cited by 2 publications

(1 citation statement)

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“…Compared with the FAC-VBG arrangement, effective control over the slow axis direction divergence angle is achieved through slow axis direction collimation within this setup. This enables better alignment with grating angle requirements while improving spectral broadening and mode-locked qualit y [20] .…”

Section: External Cavity Constructionmentioning

confidence: 99%

Research on the external cavity wavelength-locked red light semiconductor laser with a narrow-linewidth

Ma,

Yao,

Zhang

et al. 2023

6th Optics Young Scientist Summit (OYSS 2023)

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An external cavity wavelength-locked red semiconductor laser with a narrow-linewidth was designed and fabricated. The AlGaInP strained quantum wells were meticulously designed and grown,while the epitaxial layer of a high-power red semiconductor laser was synthesized using metal-organic chemical vapor deposition (MOCVD).The chips were fabricated by photolithography, metal electrode fabrication, cavity surface coating and other processes. The prepared laser chip with the cavity length of 1.5 mm has a strip width of 100 μm. The chip was made into a laser device through packaging technique, and an external resonant cavity was constructed using a Volume Bragg Grating. A series of oexperiments were conducted to optimize the performance of laser devices, and the characteristics of spectrum, power and other parameters in the condition of free running spectrum and wavelength-locked spectrum at different temperatures. A narrow-linewidth red semiconductor laser with the central wavelength of 640 nm, the linewidth of 0.11 nm, and the power of 2.7 W was obtained by means of the continuous drive current measurement at room temperature with the drive current of 3 A and fiber parameters of 50/125. In addition, the output power of 5.02 W was achieved with the method of the quasi-continuous drive current of 5 A.The power loss of the external cavity mode-locked using VBG is controlled within 3%.

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Section: External Cavity Constructionmentioning

confidence: 99%

Research on the external cavity wavelength-locked red light semiconductor laser with a narrow-linewidth

Ma,

Yao,

Zhang

et al. 2023

6th Optics Young Scientist Summit (OYSS 2023)

View full text Add to dashboard Cite

show abstract

Wavelength stabilization and spectra narrowing of a 405 nm external-cavity semiconductor laser based on a volume Bragg grating

Liu

et al. 2022

Appl. Opt.

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We introduce a 405 nm external-cavity semiconductor laser using a volume Bragg grating (VBG) as the feedback element. By decreasing the length of the external cavity and reducing the wavelength difference between the output wavelength of the laser diode during free running and Bragg wavelength of the VBG, the emission wavelength of the semiconductor laser is stably locked at 405.1 nm with a spectral linewidth of 0.08 nm. The output power reaches 292 mW, and the wavelength drift with temperature reduces to 0.0006 nm/°C. These results are helping for the spectroscopy applications of a blue-violet laser diode. In contrast to traditional external-cavity semiconductor lasers, this laser is less expensive and more compact, in addition to having a narrow linewidth and good wavelength stability. These advantages would facilitate the development of associated areas of research, including optical data storage, laser display, and laser medicine.

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Experimental Research on Volume-Bragg-grating External Cavity Red-light Semiconductor Lasers

Cited by 2 publications

References 0 publications

Research on the external cavity wavelength-locked red light semiconductor laser with a narrow-linewidth

Research on the external cavity wavelength-locked red light semiconductor laser with a narrow-linewidth

Wavelength stabilization and spectra narrowing of a 405 nm external-cavity semiconductor laser based on a volume Bragg grating

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