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NASA NTRS1999

Semiconductor Laser Line-width Measurements for Space Interferometry Applications

This work discusses results using the self-heterodyne delay atechnique to measure 1.3 um InP based DFB lasers. We will also address practical issues concerning detection and elimination of back reflections, choice of fiber length and resolution, and measurement of laser 1/f and current supply noise.

DFB laser delayed self-heterodyne interferometer l↗