Features
- Rapid arbitrary wavelength switching as fast as 2us/step
- User configurable look-up table (10k points across full tuning range)
- Available in C and O bands
- Compact, fully self-contained module
- Interfaced via USB or fast (25MHz) SPI
- Logic output for synchronizing to sweep
- Programmable logic output for synchronizing to each wavelength step (sample window)
APPLICATIONS
- Test and Measurement
- Fiber Sensing
- Atmospheric Gas Sensing
Notes
1. Gap-free continuous wavelength tuning range centered about nominal wavelength
2. Case temperature kept at 25°C
3. Power variation across all wavelengths
4. Maximum step rate when auto stepping, can dwell on any wavelength indefinitely
5. Portion of step period required for wavelength settling
6. Can be programmed in 10ns steps with the maximum width equal to the step period
7. Varies with case temperature (<100mA at 25°C)
8. Time to set new wavelength when in direct wavelength access mode using USB interface
9. Time to set new wavelength when in direct wavelength access mode using Host SPI interface
10. Time to set new wavelength when in direct wavelength access mode using DAC SPI interface
Overview
The FP4209 Fast Random-Access Tunable Laser (InstaTune) is a compact, self-contained tunable laser module capable of emitting any wavelength within the specified range and resolution available for a given band. Wavelength switching from any wavelength to any wavelength in as little as two microseconds while fully meeting specifications is supported. The module can be operated in scenarios where a host system is commanding wavelength changes as well as stand-alone where the module deterministically self-steps through a user defined sequence of wavelengths, thus generating an arbitrary waveform. Alternatively, the module can emit a programmable static wavelength. USB and SPI interfaces are provided for configuration and control. An evaluation board is also available.
Specifications
| Value | Unit | ||
|---|---|---|---|
| General Parameter | |||
| Center Wavelength FP4209-O1 FP4209-O2 FP4209-O3 FP4209-C1 FP4209-L1 FP4209-U1 FP4209-U2 | 1280 1310 1340 1550 1590 1650 1690 | nm nm nm nm nm nm nm |
|
| Tuning Range1 FP4209-OX FP4209-CX FP4209-LX FP4209-UX | 35 40 40 45 | nm nm nm nm |
|
| Absolute Wavelength Accuracy | ±15 | pm | |
| Wavelength Stability (24hr)2 | ±5 | pm | |
| Output Power | ≥5 | mW | |
| Output Power Flatness3 | ±0.25 | dB | |
| Tuning Resolution | Tuning Range / 10k points | nm | |
| SMSR | >30 | dB | |
| Wavelength Settling Time | <200 | ns | |
| Laser Linewidth | <50 | MHz | |
| Case Temperature Operating Range | 10°C - 55°C | Non-condensing | |
| Case Temperature Storage Range | -10°C - 70°C | Non-condensing | |
| Sweeping Parameter | |||
| Number Wavelength Steps (min) | 1 | ||
| Number Wavelength Steps (max) | 10000 | ||
| Wavelength Step Period (min) | 2 | us | |
| Wavelength Step Period (max)4 | 655.35 | us | |
| Wavelength Setting Time5 | <200 | ns | |
| SweepSync Training | Active-low pulse generated at the beginning of the specified wavelength sequence. | ||
| StepSync Timing6 | Active-low pulse generated every laser wavelength step. | ||
| Electrical Parameter | |||
| Power 3.3V Supply Current 3.8V Supply Current 5.0V Supply Current7 | 200 1000 1500 | mA mA mA |
|
| Communication Host USB Command8 Host SPI Command9 DAC SPI Command10 | ≤1 <4 <4 | ms us us |