PDD-001 Polarization Diversity Detector
Polarization diversity detector combining a high-extinction-ratio polarization beam splitter with matched photodetectors for dual-channel power monitoring.
- Wavelength range
- 1310, or 1550±75nm
- Operation wavelengths
- 1310 nm, 1550 nm. Other: specify
- Detection sensitivity (each channel)
- 0.95 A/W (1550nm)
- Detection sensitivity (each channel)
- 0.90 A/W (1310nm)
Overview
The PDD-001 Polarization Diversity Detector combines a high extinction ratio polarization beam splitter with matched photodetectors to monitor the powers of both orthogonal polarization components of an optical signal simultaneously.
Simultaneous detection of two orthogonal polarization components is used in many sensor and measurement applications. A pigtailed polarization beam splitter paired with two separate photodetectors can perform this task, but the arrangement is bulky and difficult to handle. The PDD-001 integrates the polarization-splitting components and photodetectors in a single compact, durable package that can be mounted onto a circuit board.
The device provides real-time monitoring of polarization changes and of the balance between polarization components, with high detection sensitivity, high extinction ratio and high reliability. It is available for 1310 nm or 1550 nm operation, with SM or PM fiber pigtails and a choice of connector types.
Key Features
- High detection sensitivity
- High extinction ratio
- Compact
- Low cost
- Easy to use
- Mountable onto a circuit board
Specifications
| Wavelength range | 1310, or 1550±75nm |
|---|---|
| Operation wavelengths | 1310 nm, 1550 nm. Other: specify |
| Detection sensitivity (each channel) |
0.95 A/W (1550nm)
For both channels
|
| Detection sensitivity (each channel) |
0.90 A/W (1310nm)
For both channels
|
| Extinction ratio | >40 dB |
| Return loss |
55 dB
Excluding connector (web page); datasheet states 55 dB min
|
| Maximum optical power | 20 mW |
| Fiber type | SM standard, PM specify, 900 µm jacket |
| Detector rise/fall time |
<10 ns
With 50Ω load at −5V bias
|
|---|---|
| Detector capacitance |
18 pf
Typical
|
| Detector dark current |
<0.20 nA
At −5V bias at 23°C
|
| Detector dark current |
<20 nA
At −5V bias at 70°C
|
| Bias voltage | 15 volts max. |
| Max. reverse current | 5 mA |
| Max. forward current | 45 mA |
| NEP | 8.42 x10 −15 W/√Hz |
| Detector package | TO-46 |
|---|---|
| Storage temperature | -40 to 80 °C |
| Dimensions | 13 × 12 × 8 mm |
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- Optical coherence tomography
- OEM modules for fiber optic sensing
- Sensors
- Performance monitoring
- Polarization analysis
- Instruments
Options & Accessories
| Option | Description |
|---|---|
| 13 | Wavelength: 1310 nm |
| 15 | Wavelength: 1550 nm |
| SM | Fiber type: single-mode |
| PM | Fiber type: polarization-maintaining |
| FC/PC | Connector type: FC/PC |
| FC/APC | Connector type: FC/APC |
| LC/PC | Connector type: LC/PC |
| LC/APC | Connector type: LC/APC |
| SC/PC | Connector type: SC/PC |
| SC/APC | Connector type: SC/APC |
| NC | No connector |
Documents & Resources
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