2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86624We present a method for remote interrogation of passive fiber Bragg grating Fabry-Perot resonators, employing current modulation of the diode laser source. With the presence of both RF amplitude and frequency modulation, it is a variant of the ultra-sensitive Pound-Drever-Hall laser frequency locking technique. We demonstrate that current modulation and interferometric demodulation removes the need for a phase modulator in the sensing architecture.Submitted to IEEE Photonics Technology LettersOpticsInstrumentation and Detectorstext