L. Eskildsen et al., STIMULATED BRILLOUIN-SCATTERING SUPPRESSION WITH LOW RESIDUAL AM USING A NOVEL TEMPERATURE WAVELENGTH-DITHERED DFB LASER-DIODE, Electronics Letters, 32(15), 1996, pp. 1387-1389
The effective threshold for stimulated Brillouin scattering for a data
-encoded signal is increased from 11.0 to 23.4dBm by using a temperatu
re-tunable laser diode. A 5kHz, sinusoid is applied to a Ti/Pt thin fi
m resistor located along the laser contact on top of the device, resul
ting in a 10kHz dithering of the wavelength. The residual amplitude mo
dulation index at 10kHz is only 1.2 x 10(-4).