  We report the development of laser systems -- a "Voigt laser" -- using a
Voigt anomalous dispersion optical filter as the frequency-selective element,
working at the wavelength of 780 nm of $^{87}$Rb-D2 resonance line. Compared
with Faraday anomalous dispersion optical filter, the Voigt anomalous
dispersion optical filter can generate a stronger and more uniform magnetic
field with a compact size of magnet, and obtains a transmission spectrum with
narrower linewidth and more stable lineprofile. In this case, the frequency
stability of the Voigt laser reaches 5$\times$10$^{-9}$ at the averaging time
of 200 s, and the wavelength fluctuation of 8-hours free operation is $\pm$0.1
pm. Besides, the Voigt laser has greater immunity to diode current than the
Faraday laser, with a wavelength fluctuation of $\pm$0.5 pm in the current
range from 73 mA to 150 mA. Finally, the Voigt laser frequency can be
controlled by the cell temperature of the Voigt optical filter, which is
expected to achieve a frequency detuning of 20 GHz. Consequently, the Voigt
laser, whose frequency could correspond to the atomic transition frequency by
tuning the cell temperature, obtains good robustness to the current and
temperature fluctuation of laser diode, and could realize a compact optical
standard for precise measurement once stabilized by modulation transfer
spectroscopy.
