Locking and wavelength selection of an ultra-collimated single-mode diode laser bar by a volume holographic grating.

@article{Trela2013LockingAW,
  title={Locking and wavelength selection of an ultra-collimated single-mode diode laser bar by a volume holographic grating.},
  author={Natalia Trela and Howard J. Baker and Denis R. Hall},
  journal={Optics express},
  year={2013},
  volume={21 4},
  pages={4512-7}
}
Wavelength-locking by a volume holographic grating (VHG) is reported for a diode laser bar with 49 single mode emitters, fitted with a dual-axis collimation phase-plate for smile elimination and excellent beam pointing correction. The much-improved VHG feedback with the ultra-collimated array beam gives 100% wavelength locking at 975 nm over a 17°C… CONTINUE READING