Z. Ahmed et al., LOW PHASE NOISE MILLIMETER-WAVE SIGNAL GENERATION USING A PASSIVELY MODELOCKED MONOLITHIC DBR LASER INJECTION-LOCKED BY AN OPTICAL DSBSC SIGNAL, Electronics Letters, 31(15), 1995, pp. 1254-1255
The authors demonstrate an optical injection technique for stabilising
the frequency and reducing the phase noise of the millimetre-wave sig
nal generated by a passively modelocked monolithic DBR laser. The opti
cal injection signal is obtained by externally modulating a CW laser u
sing the double sideband suppressed carrier (DSBSC) modulation techniq
ue. A locking range of 170MHz is achieved with an injection optical po
wer of less than 50 mu W.