K. Schafer et al., DIODE-PUMPED AND PACKAGED ACOUSTOOPTICALLY TUNABLE TI-ER-LINBO3 WAVE-GUIDE LASER OF WIDE TUNING RANGE, IEEE journal of quantum electronics, 33(10), 1997, pp. 1636-1641
Design, fabrication, and properties of an acoustooptically tunable Ti:
Er:LiNbO3 waveguide laser of up to 31-nm tuning range in the wavelengt
h band 1530 mn < lambda < 1575 nm are discussed. The laser cavity is f
ormed by an Au mirror and a dielectric mirror as output coupler, both
vacuum-deposited on the polished waveguide endfaces. As tunable intrac
avity wavelength filter with zero frequency shift, two monolithically
integrated single-stage acoustooptical TE-TM-mode converters are used
together with two polarization splitters operated as TE- and TM-pass p
olarizers, respectively. The minimum threshold of about 54 mW (coupled
) pump power is obtained at lambda approximate to 1561-nm emission wav
elength for diode laser pumping at lambda(p) approximate to 1480 nm. W
ith about 110-mW coupled pump power, up to 320-mu W output power is ac
hieved; the emission linewidth is 0.3 nm.