Spectral linewidth narrowing of two broad-area blue laser diodes (445 nm) with a common external cavity
| Autor: | Patrick LiKamWa, Yehuda Braiman, Parashu R. Nyaupane |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Blue laser
Materials science Laser diode business.industry External cavity 02 engineering and technology Grating 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Full width at half maximum Laser linewidth Tilt (optics) Optics law 0103 physical sciences 0210 nano-technology business Surface grating Laser beams Diode |
| Zdroj: | Optics Letters. 46:2718 |
| ISSN: | 1539-4794 0146-9592 |
| Popis: | Two watt-level broad-area laser diodes were simultaneously locked into a common external cavity made using a surface grating in a Littrow configuration. The spectral linewidth of the combined laser beam was narrowed down from over a nanometer to 10–15 pm (FWHM), and the output power was the sum of the power of the individually locked laser diodes. The spectrum of the combined laser beam can be tuned over a range of 2–3 nm by changing the tilt angle of the grating and varying the injection currents of each laser diode. |
| Databáze: | OpenAIRE |
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