Fiber Fabry-Perot Scanning Interferometers, FFP-SI0 pages

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Fiber Fabry-Perot Scanning Interferometer | FFP-SI

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Applications

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• Ultra High Resolution Laser Analysis

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• Linewidth

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• Mode Structure and Stability

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• Wavelength Chirp

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• Jitter and Drift

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• Ultra High Resolution Spectroscopy

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• Chemical Analysis

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• Emission or Absorption Lines

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• Laser Mode Control and Selection

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• Tunable Fiber Lasers

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• Polarization Analysis

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Features

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High direct optical resolution

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Low fiber-to-fiber insertion loss

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Convenient wavelength locking

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No alignment required

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Small footprint

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Shock resistant

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Wavelength ranges from 800 to 1600 nm

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Description

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The Micron Optics FFP-SI Fiber Fabry-Perot Scanning Interferometer is a lensless, plane Fabry-

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Perot interferometer with a single-mode fiber waveguide between two highly reflective multi-

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layer mirrors that are deposited directly onto optical fibers. The cavity consists entirely of fiber

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waveguide, permitting an extremely wide range of possible Free Spectral Ranges (FSRs), and

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no alignment or mode-matching is required.

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Wavelength scanning is achieved by axially straining a short section of fiber inside the cavity

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using a stacked piezoelectric actuator. Scanning frequencies to 100 Hz and higher can provide

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direct measurement of transient optical phenomenon such as laser chirp and jitter. Stable and

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repeatable scanning over longer periods of time can provide direct measurement of slowly

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varying optical phenomenon such as laser drift.

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For driving the FFP-SI, the FFP Controller (FFP-C) provides simple electrical signals for wave-

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length scanning and wavelength selection in either open or closed-loop mode. Many spectral

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measurements can be made using only an FFP-SI, FFP-C and oscilloscope. Also the FFP-SI can

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be cascaded with other FFP-SIs or FFP-TFs to provide ultra-high finesse values.

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In general, FFP-SIs are sensitive to the input polarization of the optical signal. Since polariza-

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tion properties of the FFP-SI are stable, an input polarization controller can be used to tune to

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one polarization or to perform polarization analysis.

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TUNED Products displaying the "Micron Optics Tuned" logo include Micron Optics tunable technologies insuring high quality and performance.

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