A novel design for an extended-cavity diode laser is presented. The cavity
contains an electro-optic prism for synchronous tuning of the cavity length
and the grating's incident angle. A simple analysis of the cavity is prese
nted. Experimental results are reported that show mode-hop-free tuning over
more than 10 GHz with high linearity and reproducibility. To the authors'
knowledge, this is the first demonstration of mode-hop-free tuning of an ex
tended cavity over several free spectral intervals with an electro-optic cr
ystal. (C) 2000 Optical Society of America OCIS codes: 140.3600, 140.3460,
140.3410, 230.4910, 230.2090.