Frequency-Locking of a 1.5-micron DFB Laser to an Atomic Krypton Line Using the Optogalvanic Effect.
01 January 1988
The frequency of an InGaAsP DFB laser has been locked to the 2 sub p10 - 3d sub s transition of Krypton atoms at 1.5339 microns using the optogalvanic effect. The absolute frequency stability was estimated to be better than 4 MHz by using a frequency discriminator which is independent from the frequency- locking servo loop.