Pjs. Heim et al., SINGLE-ANGLED-FACET LASER-DIODE FOR WIDELY TUNABLE EXTERNAL-CAVITY SEMICONDUCTOR-LASERS WITH HIGH SPECTRAL PURITY, Electronics Letters, 33(16), 1997, pp. 1387-1389
External cavity semiconductor lasers are demonstrated using a single-a
ngled-facet semiconductor laser diode that does not require anti-refle
ction coating. A wide tuning bandwidth (7%, lambda = 980nm), large sid
e-mode suppression ratio (50dB, lambda = 1590nm), narrow linewidth (50
rHz), and high output power (13.5mW) are achieved with conventional ex
ternal cavity configurations.