BPD570 APD Balanced Photodetector M Adjustable
APD's balanced photodetectors with a CMRR of 30db and very low noise are suitable for coherent detection applications.
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
BPD570 Series Photodetectors Based on 2 high-performance APD photodetectors with consistent performance, adjustable M-factor, ultra-high common-mode rejection ratio of 30db and low noise.
1. Overview
The Avalanche Photodiode Balanced Detector is a balanced receiver that eliminates common mode noise by subtracting the two input signals. The balanced detector uses two matched avalanche photodiodes (APDs) and an ultra-low noise, ultra-low distortion, high-speed transimpedance amplifier ideal for low optical input power applications. Each APD is coupled through length-matched SMF-28e+ fiber optics at the FC/APC end to avoid optical range differences between the input and the active region of the photodiode. Unique to the BPD570, compared to other balanced detectors using silicon or Indium Gallium Arsenide (IGA) PIN photodiodes, is the extremely low NEP and optical gain control.
2.Features
- Optical Gain Control
- Low NEP
- Excellent common mode rejection ratio
- Low Noise
3. Application
- OCT
- DAS
- outlier detection
- Optical Delay Measurement
BPD570A-10M BPD570A-75M BPD570A-200M BPD570A-400M materials InGaAs APD wavelength range 400-1100nm input connector FC/APC (internal 62.5/125 multimode fiber) responsivity 0.6A/W @905nm Common mode rejection ratio >30dB
Bandwidth（a） DC-10MHz DC-75MHz DC-200MHz DC-400MHz Rise time（a） 35ns 4.5ns 1.8ns 1ns Transimpedance gain（b） 165kV/A
M-factor 75-150
Saturated optical power 270nw
Out-of-phase voltage （a）
±1mV
Noise voltage（a） 2mV RMS
NEP 0.07pW/√Hz
BPD570C-10M BPD570C-75M BPD570C-200M BPD570C-400M materials InGaAs APD wavelength range 1000-1700nm input connector FC/APC (internal SMF28e+ fiber) responsivity 0.9A/W @1550nm Common mode rejection ratio >35dB
Bandwidth（a） DC-10MHz DC-75MHz DC-200MHz DC-400MHz Rise time（a） 36ns 4.5ns 1.8ns 1ns Transimpedance gain（b） 1MV/A 165kV/A 30kV/A 3.3kV/A M-factor
8-18 Saturated optical power 4.4uw 27uw 148uw 75uw Out-of-phase voltage （a）
±1mV
Noise voltage（a） 9mV RMS 8mV RMS 4mV RMS 0.8mV RMS NEP 2.6pW/√Hz 11.4pW/√Hz 32pW/√Hz 1.5pW/√Hz
BPD570 Series Photodetectors Based on 2 high-performance APD photodetectors with consistent performance, adjustable M-factor, ultra-high common-mode rejection ratio of 30db and low noise.
1. Overview
The Avalanche Photodiode Balanced Detector is a balanced receiver that eliminates common mode noise by subtracting the two input signals. The balanced detector uses two matched avalanche photodiodes (APDs) and an ultra-low noise, ultra-low distortion, high-speed transimpedance amplifier ideal for low optical input power applications. Each APD is coupled through length-matched SMF-28e+ fiber optics at the FC/APC end to avoid optical range differences between the input and the active region of the photodiode. Unique to the BPD570, compared to other balanced detectors using silicon or Indium Gallium Arsenide (IGA) PIN photodiodes, is the extremely low NEP and optical gain control.
2.Features
- Optical Gain Control
- Low NEP
- Excellent common mode rejection ratio
- Low Noise
3. Application
- OCT
- DAS
- outlier detection
- Optical Delay Measurement
| BPD570A-10M | BPD570A-75M | BPD570A-200M | BPD570A-400M | |
|---|---|---|---|---|
| materials | InGaAs APD | |||
| wavelength range | 400-1100nm | |||
| input connector | FC/APC (internal 62.5/125 multimode fiber) | |||
| responsivity | 0.6A/W @905nm | |||
| Common mode rejection ratio | >30dB | |||
| Bandwidth（a） | DC-10MHz | DC-75MHz | DC-200MHz | DC-400MHz |
| Rise time（a） | 35ns | 4.5ns | 1.8ns | 1ns |
| Transimpedance gain（b） | 165kV/A | |||
| M-factor | 75-150 | |||
| Saturated optical power | 270nw | |||
| Out-of-phase voltage （a） | ±1mV | |||
| Noise voltage（a） | 2mV RMS | |||
| NEP | 0.07pW/√Hz | |||
| BPD570C-10M | BPD570C-75M | BPD570C-200M | BPD570C-400M | |
|---|---|---|---|---|
| materials | InGaAs APD | |||
| wavelength range | 1000-1700nm | |||
| input connector | FC/APC (internal SMF28e+ fiber) | |||
| responsivity | 0.9A/W @1550nm | |||
| Common mode rejection ratio | >35dB | |||
| Bandwidth（a） | DC-10MHz | DC-75MHz | DC-200MHz | DC-400MHz |
| Rise time（a） | 36ns | 4.5ns | 1.8ns | 1ns |
| Transimpedance gain（b） | 1MV/A | 165kV/A | 30kV/A | 3.3kV/A |
| M-factor | 8-18 | |||
| Saturated optical power | 4.4uw | 27uw | 148uw | 75uw |
| Out-of-phase voltage （a） | ±1mV | |||
| Noise voltage（a） | 9mV RMS | 8mV RMS | 4mV RMS | 0.8mV RMS |
| NEP | 2.6pW/√Hz | 11.4pW/√Hz | 32pW/√Hz | 1.5pW/√Hz |
