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LK-FCPD InGaAs Photodetector
- Wide Bandwidth
- Incorporated Bias-T
- O/E Hybrid Integrated
- Low Noise, Broadband
- SMA Connector
- Low Dark Current，high signal-to-noise ratio.
- Small Form Factor.
Description
The Fiber-Coupled Photodetector (FCPD) is an advanced optoelectronic hybrid system, incorporating a broadband Indium Gallium Arsenide (InGaAs) photodiode. The InGaAs PIN photodiode is designed to respond to wavelengths ranging from 1000 to 1650 nanometers. LK-FCPD is capable of providing bandwidths of 1 gigahertz, 2.5 gigahertz, and offers customizable solutions with a maximum bandwidth capability of 8 gigahertz. The device is powered by a +5-volt supply voltage and is equipped with a standard FC (face-contacted) fiber-optic connector for optical input. The Radio Frequency (RF) output is facilitated through an SMA-compatible connector, which is impedance-matched to 50 ohms.
LK-FCPD is lightweight, less than 15 grams, which is advantageous for applications requiring minimal mass. The device is compliant with the Restriction of Hazardous Substances (RoHS) Directive 2.0, ensuring that it meets stringent environmental and safety regulations.
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 ～ +70 | ℃ |
| Bias Voltage | VR | +5 | +4.75 ～ +5.25 | V |
| Optical Input Power | Pin | 0 | +5 | 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 | － | － | L Band | S Band | CM | － | |
| Small Signal Bandwidth | f-3dB | TC = 22 ± 3℃ | 0.03～1 | 0.03～2.5 | 0.1～8 | GHz | |
| Responsivity | Re | VR =+5V, Pin =1mW | λ = 1310 nm | ≥ 0.90 | ≥ 0.90 | ≥ 0.90 | A/W |
| λ = 1550 nm | ≥ 0.90 | ≥ 0.90 | ≥ 0.90 | ||||
| Amplitude Flatness | A | TC =-40～+70 ℃ | ≤ ± 1.5 | ≤ ±2 | dB | ||
| Output VSWR | VSWR | － | ≤ 2 | ≤ 2.2 | － | ||
| Saturation Optical Power | Ps | VR = +5 V, λ = 1550 nm AC Modulated | +5 | dBm | |||
| Saturation RF Output Power | Pout | － | -10 | dBm | |||
| Dark Current | ID | － | ≤10 | nA | |||
| Output Impedance | RL | － | 50 | Ω | |||
● Typical Response Curves
Fig . 1 L- Band FCPD InGaAs Photodetector Frequency Response
Fig . 2 S- Band FCPD InGaAs Photodetector Frequency Response
Fig . 3 C- Band FCPD InGaAs Photodetector Frequency Response
●Dimension and Pins ( Unit: mm[inch] )
Optical Connector：FC(face-contacted) fiber-optic connector
RF Connector：SMA
●Ordering Information
Sheet 1：
| Code | Analog Bandwidth |
| L | 0.03 ～ 1 GHz |
| S | 0.03 ～ 2.5 GHz |
| CM | Customization ( ≦ 8GHz ) |
● Precautions
Be sure the fiber coupling facet is clean before connecting it to opto-circuit .
RF interface and optical interface shall be covered with dust cap when not in use.
The suitable ESD protection is required in storage, transportation
All of our standard photodetectors can be customized into modules！
Applications
Radar Information Processing
Electronic Warfare
Antenna Measurement
Fiber Optic Communications
Security and Surveillance
