Abstract
A single ridge waveguide laser wavelength stabilized by a compact external Bragg grating cavity with an output power as much as 380 mW and a beam quality factor M <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> of 1.3 is presented. A characterization concerning tunability by current, short-term optical linewidth, and intensity fluctuations is performed. The device exhibits a wavelength tuning factor at 780 nm of 0.5 pm/mA, a short-term optical linewidth of 18 kHz, and a low-frequency relative intensity noise of -136 dB/Hz. These characteristics allow a high resolution absorption spectroscopy of the D2 line of rubidium.
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