Fiber Stretcher and Piezo Driver
Select your configuration
Stretchers configuration
Four different high resolution fiber stretchers providing an accurate delay management in a compact packagingDrivers configuration
Two different amplifiers only driven by a 0-5V setpoint voltage and delivering up to 100VCombos configuration
Up to ten different low consumption combos with low V and low phase noise. Each combo comes complete with its Piezo-driven fiber stretcher
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PLUG & PLAY COMBOS
Fiber stretchers, also called phase shifters, offer the attractive feature to tune and modulate the path length of the light within the fiber core and so the resulting optical delay does. They are based on voltage-driven Piezo ceramics and need to be controlled with proper electronics drivers. Any type of fiber may be assembled, please ask.
No more worrying about capacitive PZ values, driver deliverable current, etc. ; with combos, your 0-5V input modulation signal is directly translated into optical path length modulation and therefore into optical and phase delay.
SPECIFICATION
| More combos are available, please contact us for assistance according to your application. | ||||
| Top Combos | ||||
| Reference | LF1 (ST020LF + DRVLF) | LF2 (ST040LF + DRVLF) | HF3 (ST100HF + DRVHF) | HF3 (ST500HF + DRVHF) |
| Fiber elongation | 0-12µm | 0-32µm | 0-20µm | 0-100µm |
| Fiber stretch | 0.12µm/V | 0.32µm/V | 0.20µm/V | 1µm/V |
| Time delay (1550nm) | up to 0.06ps | up to 0.16ps | up to 0.10ps | up to 0.5ps |
| Tunability resolution | <10fs | <10fs | <1fs | <1fs |
| Modulation (large signals BW) | 800Hz | 800Hz | <20kHz | <20kHz |
| Modulation (small signals) | 1kHz | <3kHz | 120kHz | 100kHz |
| Optical loss | <0.05dB | <0.05dB | <0.3dB | <0.3dB |
| Internal fiber length | 20mm | 40mm | 5.5m | 6.5m |
| Consumption | <2.5W | <2.5W | <20W | <20W |
| Analog modulation signal | 0-5V | 0-5V | 0-5V | 0-5V |
| Stretcher dimensions (mm3) | 50x30x20 | 50x30x20 | 85x62x39 | 85x62x39 |
| Driver dimensions (mm3) | 93x80x39 | 93x80x39 | 84x80x39 | 84x80x39 |
QUESTIONS
For linear models (low frequency), a short length of fiber is fixed on a piezoelectric stack. For high frequency models, several meters of fiber are winded around a round PZ element. Applying a voltage to these elements will extend the PZ dimension and stretch the fiber. The higher the voltage, the higher stretching. The modulation bandwidth is limited by the capacitive effect of the PZ element. Driver specifications have to be chosen properly in accordance with the final application (frequency vs. depth of modulation). At a first order, we can consider the fiber elasticity is not type dependent; in other words, we can stretch any type of fiber while taking care of crucial specification like the insertion loss, the PER (for PM fiber), etc.
- Modulation of the optical path length (i.e. the optical phase)
- Accurate control of the delay
- Optical delay between 0 and 0.5 ps
- Fiber elongation between 0 and 100 µm
- Low insertion loss between 0.05dB (linear) and 0.5dB (circular)
- High resolution < 1fs
- High speed
- Compact packaging
- All fibers: SM, MM, PM
- Large choice of optical termination
- Variable optical delay
- Interferometry
- Fast feedback loop
- Lasers
- Phase shifting
- Metrology
- Optical Coherence Tomography (OCT)
- Quantum computing
Low-Frequency Combos (LF1 and LF2): LF Combos are ideal for applications using specific and expensive optical fiber types. LF stretchers are unique as they only require 20mm (FS 20µm) or 40mm (FS 40µm) of internal fiber length. They also offer ultra-low insertion loss < 0.05dB and are compatible with a large range of optical fibers (SM, MM, PM) and wavelengths from UV to IR.
High-Frequency Combos (HF3 and HF4): HF Combos are ideal for high-speed, fast feedback loop, interferometric and sensing applications. HF stretchers are the faster models available and offer enhanced signal modulation. They also offer low insertion loss < 0.3dB and are compatible with most of optical fibers (SM, MM, PM) and wavelengths from Vis to IR.
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