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LK-SSPD Mini-High Speed InGaAs Photodetector
- Wide Bandwidth ，High Speed
- High Responsivity
- Incorporated Bias-T
- High saturation Input
- Hermetically Sealed, SMA Connector
- Low Dark Current，high signal-to-noise ratio.
- Small Form Factor.
Product Description
LK-SSPD high-speed photodetector is engineered to accommodate digital and analog applications. This module is equipped with an InGaAs PIN photodiode that has a wavelength response from 1000 to 1650 nm, along with the essential matching electronics.
LK-SSPD is capable of offering a bandwidth of 20 GHz. It functions with a +5 V power supply and is compatible with the standard single-mode 9 / 125 μm fiber for input. The RF output utilizes an SMP-compatible connector that is impedance-matched to 50 ohms.
LK-SSPD is hermetically sealed within a compact housing and has a weight of less than 8 grams.
Technical Specifications
| Typical & Absolute Maximum Rating | ||||
|---|---|---|---|---|
| Parameter | Sym. | Typ | Rating | Unit |
| Storage temperature range | TSTG | -45 ～ +85 | -55 ～ +100 | ℃ |
| Operating case temperature range | TC | 25 | -40 ～ +85 | ℃ |
| Bias Voltage | VR | +5 | +5 ～ +9 | V |
| Optical Input Power | Pin | +3 | +10 | dBm |
| Burn-out Optical Power | PB | - | +13 | dBm |
| Lead soldering temperature | Tp | 280（10s） | 330（10s） | ℃ |
| Electrical / Optical Characteristics ( TC = 22 ± 3 ℃ ) | |||||
|---|---|---|---|---|---|
| Parameter | Sym | Test Condition | Parameter Values | Unit | |
| Wavelength Range | λ | － | 1000 ～ 1650 | nm | |
| Frequency Range | － | － | Ku + Band | － | |
| Small Signal Bandwidth | f-3dB | TC = 22 ± 3℃ | 0.3 ～ 20 | GHz | |
| Responsivity | Re | VR=+5V, Pin =1mW | λ = 1310 nm | ≥ 0.9 | A/W |
| λ = 1550 nm | ≥ 0.85 | ||||
| Amplitude Flatness | A | TC =-45～+85 ℃ | ≤ ± 2 | dB | |
| Saturation Optical Power | Ps | VR=5v, λ = 1550 nm AC Modulated | +17 | dBm | |
| Dark Current | Id | VR=+5v | ≤ 10 | nA | |
| Saturation RF Output Power | Pout | － | -10 | dBm | |
| Output Impedance | RL | － | 50 | Ω | |
Typical Response Curves
Dimension and Pins ( Unit: mm[inch] )
RF Connector: SMP
Ordering Information
Sheet 1：
| Code | Analog Bandwidth |
| KU | 0.3 ～ 20GHz |
Sheet 2：
| Code | Connector Type | Remark |
| N | No Connector | Single-mode 9 / 125 μm fiber pigtail |
| A | FC / APC | |
| P | FC / PC |
Precautions
The fiber bending radius no less than 20 mm for avoiding fiber damaged.
Be sure the fiber coupling facet is clean before connecting it to opto-circuit.
The suitable ESD protection is required in storage, transportation and using.
All of our standard photodetectors can be customized into modules！
Applications
Optical-fiber Communication
Radar Information Processing
Electronic Warfare
High-speed Signal Test and Measurement
Security and Surveillance
