Accession Number : ADP008205

Title :   Optical Phase and Amplitude Response of an In-Fiber Grating Resonator,

Corporate Author : GENERAL INSTRUMENT CORP HATBORO PA JERROLD COMMUNICATIONS DIV

Personal Author(s) : Huber, David R.

Report Date : APR 1992

Pagination or Media Count : 3

Abstract : We report the measured phase and amplitude response of an in-fiber grating resonator'. The optical bandpass resonator was formed in 2 a single-mode fiber by a photo-refractive induced Bragg reflector . The grating length was about 22 mm with a 1 mm central gap to facilitate formation of the resonator. The resonant peak occurred at 1547.1 nm. The 3 dB optical bandpass is 4 GHz wide. The optical phase and amplitude transmission response was measured by placing the resonator in one arm of a balanced heterodyne Mach-Zehnder interferometer. A laser was used to sweep through the grating resonance. The optical phase response is down converted to the electrical domain and detected by RF heterodyne techniques. One application of this integrated 3 silica component is the active frequency stabilization of a laser . The linear portion of the grating phase response would provide the feedback signal for laser frequency stabilization. Precise temperature control of the grating resonator would provide an accurate optical frequency reference.

Descriptors :   *RESONATORS, *GRATINGS(SPECTRA), *FIBER OPTICS, AMPLITUDE, CONTROL, FEEDBACK, FIBERS, FREQUENCY, INTERFEROMETERS, LASERS, LENGTH, PHASE, REFLECTORS, RESONANCE, RESPONSE, SIGNALS, STABILIZATION, TEMPERATURE, TEMPERATURE CONTROL, PHOTONICS.

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE