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  • PD12 Fiber-Coupled Amplified Photodetector (400-1700nm, kHz-1GHz)

PD12 Fiber-Coupled Amplified Photodetector (400-1700nm, kHz-1GHz)


The PD12 is a photodetector with amplification circuitry for use with FC-connected fiber optic cables in optical systems

Model:PD12
Tags: PD12 Photodetector Fiber-Coupled Amplified Photodetector 400-1700nm Detector 1GHz Bandwidth Photodetector FC Interface PD PIN Photodetector Weak Light Detection Module
Contact:face Huang Email: Hqy@ybphotonics.com
WhatsApp: +8613427781756 Web | App
Get a Quote Manual: Download>>

1. Overview

The PD12 is a high-performance fiber-coupled amplified photodetector integrated with amplification circuitry, specially designed for FC-connected fiber optic cable systems. Encapsulated in a durable aluminum housing, it consists of a high-sensitivity photodiode, transimpedance amplifier and RF connector, with a standard FC fiber input flange for easy coupling and an SMA female output for optimized frequency response (up to 1GHz). Available in two spectral ranges (400-1000nm Si / 1000-1700nm InGaAs) and multiple bandwidth options, it supports 4/8/16 channel customization for diverse optical detection scenarios.


2. Features

  • 400-1700nm Broad Spectral Range : Dual material options (Si/InGaAs) for visible to near-infrared light detection
  • kHz-1GHz Ultra-Wide Bandwidth : Multiple bandwidth models (50kHz to 1GHz) to match different detection speed requirements
  • Standard Fiber Optic Interface : FC/APC optical input + SMA female electrical output, 50Ω impedance for easy system integration
  • Dual Fiber Compatibility : Works with single-mode (SM) and multimode (MM) fibers, flexible for various optical systems
  • Customizable Channel Design : Supports 4/8/16 channel customization for multi-path signal detection
  • High Sensitivity & Low Noise : Optimized transimpedance amplifier, ideal for ultra-weak light signal capture
  • Compact Durable Design : Aluminum housing, low power consumption (9-12V DC), suitable for embedded/portable equipment
  • Stable Industrial Performance : Wide operating temperature range, consistent output for long-term use


3. Applications

  • Ultra-weak optical signal detection and acquisition
  • Fast laser pulse signal detection
  • Abnormal laser beat frequency signal detection
  • Distributed fiber optic sensing (DVS/DAS) systems
  • Optical communication signal reception
  • Scientific research & laboratory optical detection experiments
  • Industrial optical sensing and non-contact detection equipment


4. Specifications

ItemsPD12A-50kPD12A-300kPD12A-700k
MaterialsSi
Wavelength400-1000nm
Photosensitive diameter200um
Responsivity0.5A/W @850nm
BandwidthDC-50kHzDC-300kHzDC-700kHz
Rise time7us1us0.5us
Gain(a)0.5x106V/W1.0x105V/W2.6x104V/W
Saturated Optical power-20.4dBm (9.1uw)-13.4dBm (45.5uw)-7.5dBm (0.18mw)
Output bias voltage(a)10mV10mV10mV
Noise voltage(a)4mV3mV2mV
NEP2.46pW/√Hz4.98pW/√Hz11.1pW/√Hz
Maximum output amplitude(a)5V5V5V


ItemsPD12A-10MPD12A-50MPD12A-200MPD12A-400M
MaterialsSi
Wavelength400-1000nm
Photosensitive diameter200um
Responsivity0.5A/W @850nm
Bandwidth(b)DC-10MHzDC-50MHzDC-200MHzDC-400MHz
Rise time(b)40ns8ns2ns1ns
Gain(a)1.35x105V/W2.7x104V/W1.2x104V/W5.4x103V/W
Saturated Optical power23.7uW118uW268uW592uW
Noise voltage(b)18mV18mV18mV18mV
NEP5.2pW/√Hz11.4pW/√Hz28pW/√Hz80pW/√Hz
Maximum output amplitude(a)3.2V3.2V3.2V3.2V


ItemsPD12A-500MPD12A-1G
MaterialsSi
Wavelength400-1000nm
Photosensitive diameter200um
Responsivity0.5A/W @850nm
BandwidthDC-500MHzDC-1GHz
Rise time800ps400ps
Gain(a)600V/W340V/W
Saturated Optical power6.1dBm (4.1mw)7dBm (5mw)
Noise voltage(a)5mV5mV
NEP100.3pW/√Hz156.6pW/√Hz
Maximum output amplitude(a)2.5V1.7V


ItemsPD12C-50kPD12C-300kPD12C-700k
MaterialsInGaAs
Wavelength1000-1700nm
Photosensitive diameter70um
Responsivity0.9A/W @1550nm
BandwidthDC-50kHzDC-300kHzDC-700kHz
Rise time7us1us0.5us
Gaina0.9x106V/W1.8x105V/W4.6x104V/W
Saturated Optical power-23.8dBm (4.2uw)-15.6dBm (27.8uw)-6dBm (0.25mw)
Output bias voltage(a)10mV10mV10mV
Noise voltage(a)4mV3mV2mV
NEP1.25pW/√Hz2.46pW/√Hz6.24pW/√Hz
Maximum output amplitude(a)5V5V5V


ItemsPD12C-10MPD12C-50MPD12C-200MPD12C-400M
MaterialsInGaAs
Wavelength1000-1700nm
Photosensitive diameter70um
Responsivity0.9A/W @1550nm
Bandwidth(b)DC-10MHzDC-50MHzDC-200MHzDC-400MHz
Rise time(b)40ns8ns2ns1ns
Gain(a)2.5x105V/W4.9x104V/W2.0x104V/W8.7x103V/W
Saturated Optical power12.8uW65uW160uW368uW
Noise voltage(b)18mV18mV18mV18mV
NEP2.2pW/√Hz5.6pW/√Hz18.4pW/√Hz39.9pW/√Hz
Maximum output amplitude(a)3.2V3.2V3.2V3.2V


ItemsPD12C-100M
PD12C-500MPD12C-1G
MaterialsInGaAs
InGaAs
Wavelength1000-1700nm
1000-1700nm
Photosensitive diameter70um
70um
Responsivity0.9A/W @1550nm
0.9A/W @1550nm
BandwidthDC-100M
DC-500MHzDC-1GHz
Rise time3.5ns
800ps400ps
Gain(a)4.2x10^4V/W
1.1x10^3V/W610V/W
Saturated Optical power76uW
3.6dBm (2.3mw)6.1dBm (4.1mw)
Noise voltage(b)25mV
4mV4mV
NEP
41.7pW/√Hz85.6pW/√Hz
Maximum output amplitude(a)3.2V
2.5V2.5V


ItemsDetector Common Parameters
Operating voltage9-12V
Operating Current<200mA
Output Impedance50Ω
Output coupling modeDC
Output connectorSMA female
Operating temperature-20~65℃
Storage temperature-40~85℃

Remarks:
a For high resistance loads
b For 50Ω loads

5. Response curve

pd12-100.pngpd12-101.png


6. Mechanical dimensions

pd12-102.png


7. Shipping list

ItemName of materialnumunitnote
1photodetector1pcs 
2power adapter1pcs12V
3SMA to BNC RF Cable1pcs

FAQ


  • Q:Do you have an unboxing picture of the photodetector?
    unboxing picture of the photodetector
    A:When you buy our photodetectors, we will deliver SMA to BNC RF cable, and power supply for free.
  • Q: What are the advantages of your photodetectors compared to Thorlabs?
    A: We support custom development and we offer better prices.
  • Q: What is the lead time for photodetector modules?
    A: Basically, we have more than 90% of detectors in stock, only a few models need 3 weeks lead time.
  • Q: Do you support the sale of those countries, and is the shipping included?
    A: Our service is available worldwide, regardless of country or region. Shipping is included.
  • Q: Who are your typical customers?
    A: More than 100 top universities and research institutes in China have chosen us and given us high evaluations, such as: Chinese Academy of Sciences, CEC, Tsinghua University, Peking University and other clients.

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