FFP-I Fiber Fabry-Perot Interferometer
Fixed fiber Fabry-Perot interferometer with smooth, uniformly spaced transmission peaks and a free spectral range of 0.01 to 10,000 GHz.
- Operating wavelength range
- 1260 - 1620 nm
- Free spectral range
- 0.01 - 10,000 GHz
- Free spectral range
- 10 - 100 GHz
- Finesse
- 10, 40, 100, 200, 500, 1000, 2000
Overview
The FFP-I family of Fiber Fabry-Perot Interferometers uses a fixed interferometer design that produces smooth, uniformly spaced transmission peaks.
The FFP-I is a lensless, plane Fabry-Perot interferometer in which a single-mode optical fiber waveguide sits between two highly reflective multilayer mirrors. Because the device is manufactured directly with optical fibers, it needs no alignment or mode-matching. The free spectral range (FSR) can be manufactured to customer specifications. A TEC package is available for thermal stability and for minor adjustments to the center bandpass frequency.
picoWave
The picoWave® is Luna's patented multi-wavelength reference for real-time wavelength calibration with picometer accuracy. It combines the uniform frequency spacing of the FFP-I with the wavelength marker of a Fiber Bragg Grating (FBG) and a built-in TEC for thermal stability, so it can serve as a calibrated wavelength reference. The FFP-I and FBG can be configured in series or in parallel.
Key Features
- Spectrum sliced source
- ITU filter
- Calibrated wavelength reference
- Laser stabilization
- WDM emulation
- Lensless, plane Fabry-Perot design with single-mode fiber waveguide between two multilayer mirrors
- Manufactured directly with optical fibers, no alignment or mode-matching required
- Free spectral range manufactured to customer specification
- Optional TEC package for thermal stability and center frequency adjustment
Specifications
| Operating wavelength range |
1260 - 1620 nm
Each useful spectral range defined by mirror pass band
|
|---|---|
|
Free spectral range
FFP-I
|
0.01 - 10,000 GHz |
|
Free spectral range
picoWave
|
10 - 100 GHz |
|
Finesse
FFP-I
|
10, 40, 100, 200, 500, 1000, 2000
The web page gives 10 to 2,000
|
|
Finesse
picoWave
|
10 |
| Bandwidth (FWHM or 3dB) | FSR/Finesse |
| Insertion loss |
< 3.0 dB
High resolution (BW <2 GHz) FFP-Is are generally polarization sensitive; polarization properties are stable and can be adjusted by a polarization controller at the FFP-I input
|
| Maximum input power |
100 mW
For finesse < 200; maximum input power level depends on finesse value
|
|
Thermal coefficient
FFP-I
|
~ 1.6 GHz/C |
|
Wavelength marker placement
picoWave
|
User defined |
| TEC |
Melcor Epoxy Filler 04OT2.0-30-F2-EP
Optional for FFP-I with FSR > 10 GHz, standard for picoWave
|
|---|---|
| TEC drive current | < 2 A |
| TEC Qmax |
< 4 W
Th = 25 °C
|
| TEC Vmax |
< 3.4 V
Th = 25 °C
|
| TEC ΔTmax |
67 C
Th = 25 °C
|
| Thermistor | 10 KΩ NTC |
| Thermal tuning speed |
1 GHz/sec
typical
|
| Stability |
+/- 0.125 GHz
laboratory conditions
|
| FSR variation over tuning range | 0.05% of FSR |
| Wavelength bands |
from 780 to 1640 nm
Contact Luna for configuration details
|
|---|---|
| Finesse | up to 4,000 |
| Bandwidth | from KHz to GHz |
| ITU tolerance | from 0.5 to 0.05% |
| Part number format |
FFP-I-wwww - bbb u - ffff - ii - ccc
wwww = wavelength band; bbb = bandwidth (e.g. 040 = 40 GHz); u = bandwidth unit (G GHz, M MHz, K KHz); ffff = finesse (e.g. 0650 = finesse of 650); ii = insertion loss (e.g. 2.5 = 2.5 dB loss); ccc = connector/TEC code
|
|---|
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- Optical sensing
- Optical performance monitoring
- Spectrum analysis
- Tunable optical noise filtering
- Tunable channel drop for ultra DWDM
- Tunable sources
Options & Accessories
| Option | Description |
|---|---|
| 1310 | Wavelength band 1260-1360 nm — Ordering code field wwww |
| 1420 | Wavelength band 1360-1480 nm — Ordering code field wwww |
| 1500 | Wavelength band 1480-1520 nm — Ordering code field wwww |
| 1550 | Wavelength band 1520-1570 nm — Ordering code field wwww |
| 1580 | Wavelength band 1520-1620 nm — Ordering code field wwww |
| 1600 | Wavelength band 1570-1620 nm — Ordering code field wwww |
| G | Bandwidth unit GHz — Ordering code field u |
| M | Bandwidth unit MHz — Ordering code field u |
| K | Bandwidth unit KHz — Ordering code field u |
| 061 | FC/APC (fusion spliced) — Ordering code field ccc |
| 063 | SC/APC (fusion spliced) — Ordering code field ccc |
| 065 | FC/APC (connectorized) — Ordering code field ccc |
| 080 | TEC Equipped — Ordering code field ccc |
