| Abstract: | We propose a technique for rapid monitoring of single-mode operation of a tunable injection laser, based on analysis of the
fine structure of the power-current characteristic obtained with self-heterodyning, using a Michelson interferometer. The
technique makes it possible to determine the range for single-mode lasing and mode tuning as well as the presence of spurious
optical feedback, and to estimate the coherence length.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 73, No. 1, pp. 119–123, January–February, 2006. |
