Picosecond Measurement of Chirp in Gain-Switched, Single-Mode Injection Lasers.
01 January 1987
Wavelength shifts caused by chirp in pulses generated from a gain-switched InGaAsP distributed-feedback laser have been measured with 0.5 ps resolution. The applicability of a simple, two-term analytical expression to describe the chirp is evaluated. For the pulses from the gain-switched laser, the power-dependent "wavelength-offset" term in the formula is the most important.