Sk. Liaw et al., Parallel pump-shared linear cavity laser array using 980-nm pump reflectors or N pieces of gain fibers as self-equalizers, IEEE PHOTON, 12(1), 2000, pp. 19-21
By using fiber gratings as pump reflectors with various reflectivities or N
pieces of gain fibers with various lengths externally to linear cavity as
self-equalizers, a parallel-type, pump-shared linear cavity laser array (LC
LA) is proposed and numerically studied, The average output power is increa
sed and the maximum power variation among channels is reduced from 7.2 to l
ess than 0.1 dB when the reflectivity of each pump reflector or the length
of each gain fiber is adjusted appropriately.