No abstract

No abstract

Abstract-By using fiber gratings as pump reflectors with various reflectivities or pieces of gain fibers with various lengths externally to linear cavity as self-equalizers, a parallel-type, pumpshared linear cavity laser array (LCLA) is proposed and numerically studied. The average output power is increased and the maximum power variation among channels is reduced from 7.2 to less than 0.1 dB when the reflectivity of each pump reflector or the length of each gain fiber is adjusted appropriately.Index Terms-Fiber Bragg grating, linear cavity laser arrays, master oscillator power amplifier, power equalization, pump reflector, wavelength-division multiplexing.

No abstract