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We demonstrate a thermally tuned SGDBR laser integrated with semiconductor optical amplifier and spectral filter achieving 70kHz spectral linewidth, 50dB SMSR, and +17dBm fiber- coupled output power over a 41nm wavelength range across the C-band.
We demonstrate a thermally tuned SGDBR laser with high thermal tuning efficiency; 300kHz spectral linewidth, +16dBm fiber-coupled output power, 40dB SMSR, and millisecond timescale tuning are achieved over a 40nm wavelength range across the C-band.
The authors report the recent breakthroughs of our research activities carried out in the framework of the ESO R&D programs to develop 589-nm CW sources for laser guide stars (LGS). Large telescopes equipped with adaptive optics require 20-25 W 589-nm CW light sources with an emission linewidth < 50 MHz. Towards this goal, we have been working on the development of high-power narrowband 1178-nm...
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