A thermally fixed photorefractive Bragg grating is written in a single-mode Ti:Fe:Er:LiNbO<sub>3</sub> channel waveguide and used to develop a distributed feedback–distributed Bragg reflector coupled cavity laser with a second broadband dielectric cavity mirror. The optically pumped (λ<sub>p</sub>=1480 nm, <i>P</i> =130 mW) laser emits in single-frequency operation as much as 8 mW at λ=1557.2 nm with a slope efficiency of ~22% . The laser wavelength can be thermo-optically and electro-optically tuned over 100 pm.
© 2004 Optical Society of America
(130.3120) Integrated optics : Integrated optics devices
(130.3730) Integrated optics : Lithium niobate
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
Bijoy K. Das, Raimund Ricken, Viktor Quiring, Hubertus Suche, and Wolfgang Sohler, "Distributed feedback distributed Bragg reflector coupled cavity laser with a Ti:(Fe:)Er:LiNbO<sub>3</sub> waveguide," Opt. Lett. 29, 165-167 (2004)