In this paper, experimental results for a current modulation frequency locking scheme in a single feedback control loop are presented, and are compared with the Pound-Drever-Hall (PDH) topology. This experiment provides confidence that with proper pre-stabilization of the diode laser in a more sophisticated two-loop control scheme, current modulation may well attain similar ultra-resolution strain sensitivities as those achieved using the PDH technique.
Interrogation of a passive fiber Bragg grating resonator sensor by current modulation of a diode laser
2005-01-01
274915 byte
Conference paper
Electronic Resource
English
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