AI Article Synopsis
- An external cavity diode laser (ECDL) was developed for applications in laser communication and precision measurement, optimized for around 780 nm wavelength.
- The ECDL features an interference filter that allows for precise temperature and current control, achieving a continuous tuning range of 527 GHz and a low output linewidth of 570 Hz.
- Compared to traditional lasers, the ECDL offers advantages like narrower linewidth, lower noise, higher spectral purity, and a compact design, measuring just 25 × 15 × 8.5 mm and weighing only 19.8 g.
Article Abstract
To meet the demands of laser communication, quantum precision measurement, cold atom technology, and other fields for narrow linewidth and low-noise light sources, an external cavity diode laser (ECDL) operating in the wavelength range around 780 nm was set up with a Fabry-Pérot etalon (F-P) and an interference filter (IF) in the experiment. The interference filter type ECDL (IF-ECDL) with butterfly-style packaging configuration has continuous wavelength tuning within a specified range through precise temperature and current control and has excellent single-mode characteristics. Experimental results indicate that the output power of the IF-ECDL is 14 mW, with a side-mode suppression ratio (SMSR) of 54 dB, a temperature-controlled mode-hop-free tuning range of 527 GHz (1.068 nm), and an output linewidth of 570 Hz. Compared to traditional lasers operating at 780 nm, the IF-ECDL exhibits narrower linewidth, lower noise, and higher spectral purity, and its dimensions are merely 25 × 15 × 8.5 mm weighing only 19.8 g, showcasing remarkable miniaturization and lightweight advantages over similar products in current research fields.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11598017 | PMC |
| http://dx.doi.org/10.3390/s24227237 | DOI Listing |
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