Product Brief
Features
- Responsivity > 0.40 A/W minimum (typically >0.5 A/W)
- High linearity at high optical power
- Extended temperature range
- SMF-28, PM, or specialty MFD fiber
- Internal or external bias-T options
Overview
The DT family high speed detector module is designed for both digital and analog applications with 50 Ω impedance matched RF connections.
The module contains an InGaAs MUTC photodiode and necessary matching electronics optimized for high linearity at high optical power. Large aperture detector variants provide high saturation photocurrent up to 120 mA, and small aperture detector variants provide high bandwidth up to 22 GHz. The package is hermetically sealed with a SMA or K connector compatible RF connector*.
*Depending on version ordered
Performance Characteristics
Operating reverse bias VB = 5 V unless otherwise specified (external)
| Characteristics | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Wavelength range | λ | 1280 | 1620 | nm | ||
| Optical return loss | RLO | DC to 3-dB bandwidth | -35 | -32 | dB | |
| Electrical return loss | RLE | -8 | -10 | dB |
Performance Characteristics (detector aperture specific)
Operating reverse bias VB = 5 V unless otherwise specified (external)
| Characteristics | Symbol | Condition | 20 um | 28 um | 50 um | Unit |
|---|---|---|---|---|---|---|
| Saturation photocurrent | PSat | 1-dB compression, typical | 80 | 90 | 120 | mA |
| Responsivity | R | Minimum, 1550 nm | 0.4 | 0.4 | 0.4 | A/W |
| Dark current | ID | Typical | 0.1 | 0.1 | 1 | uA |
| 3-dB bandwidth | BW | Typical | TBD | 22 | 5 | GHz |
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