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High-Speed Optical Path Length Scanner

High-Speed Optical Path Length Scanner
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High-Speed Optical Path Length Scanner - 1

INSTRUMENTS SPECIAL POLARIZATION ACCESSORIES COMPONENTS APPLICATION FAQS GUIDE TIMING/DELAY MANAGEMENT MODULES POLARIZATION MANAGEMENT MODULES - 56- General Photonics Corporation 909.590.5473 http://www.generalphotonics.com The FST-002 is a PZT-driven high-speed optical path length scanner with a scanning range of up to 18 mm at a resonant frequency of around 2 kHz. Built with a patented fiber stretching technology, this device provides a large scan range with a relatively low drive voltage of around 90 volts. At frequencies below resonance, a total scan range of 4.0 mm can be achieved with a maximum drive voltage of 150 volts. This fiber stretcher is packaged in a specially designed enclosure to minimize audible noise generated by the PZT. This patented device can be driven with commercially available PZT drivers, such as General Photonics’ PCD-001. The FST-002 enables applications from sensing to medical imaging, interferometry, position measurement, time domain optical coherence tomography (OCT), and spectrum analysis. The large delay range is especially attractive for OCT applications requiring large A-scan depth, where frequency domain OCT has limitations. At General Photonics, we stretch the fiber hard to make your work more relaxed. Preliminary Specifications: Note: 1. Values are referenced without connectors. Features: . Large delay range . High speed . Low insertion loss . Low loss variation . Low audible noise High-Speed Optical Path Length Scanner – PathScan™ TIMING/DELAY MANAGEMENT MODULES Peak Delay Range 16 mm (min.), 18 mm (typical) at resonance frequency Voltage for Peak Delay 90 ± 10 volts Low Frequency Delay Range > 4.0 mm Max. Voltage to PZT 150 volts Resonant Frequency 2 ± 0.2 kHz Load Capacitance 0.72 ìF Insertion Loss1 < 0.2 dB Insertion Loss Variation < 0.1 dB Return Loss1 > 65 dB PDL1 < 0.05 dB Wavelength Range 1260 to 1650 nm Maximum Optical Power 1000 mW min. Operation Temperature 0 ~ 50 °C Storage Temperature -40 ~ 80 °C Dimensions 160 (L) x 80 (W) x 60 (H) mm Applications: . Time domain OCT . Interferometers . Medical imaging . Spectrum analysis Tech Info: p. 152

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High-Speed Optical Path Length Scanner - 2

SPECIAL POLARIZATION INSTRUMENTS COMPONENTS APPLICATION ACCESSORIES GUIDE FAQS TIMING/DELAY MANAGEMENT MODULES POLARIZATION MANAGEMENT MODULES General Photonics Corporation 909.590.5473 http://www.generalphotonics.com -57- Figure 3. Optical delay vs. frequency at Vpp = 150V. Figure 4. Optical delay vs. input voltage at low frequency (100 Hz). Typical Performance Data: Figure 1. Optical delay vs. input voltage at resonance frequency Figure 2. Resonance frequency vs. input voltage High-Speed Optical Path Length Scanner – PathScan™ TIMING/DELAY MANAGEMENT MODULES FST — 002 — Connector Type:...

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