We describe a Nd3+-doped fiber laser which uses all-fiber reflectors to form the resonant cavity. The mirrors, each made using a loop of doped single-mode fiber between the output ports of a fused tapered coupler1 (Fig. 1), are used in series with a length of doped fiber to form a structure which resembles an all-fiber Fabry-Perot laser (Fig. 2). A continuous length of doped fiber may be used to make the device.
© 1987 Optical Society of AmericaPDF Article