Welcome to HC OPTICAL!

Home  >  Products  >  Modulator  >  Balanced Photodetector Module

Balanced Photodetector Module

Product Details

 Product introduction

 HC-BPRM series balanced photodetector module integrates two matched high-linearity analog PIN detectors and a low-noise broadband transimpedance amplifier, featuring high gain, high sensitivity, DC-coupled output and high common-mode rejection ratio, which can effectively reduce the common-mode noise of the input light and improve the signal-to-noise ratio of the system. The power supply of the module is positive 12 V, the input optical interface can select optical fiber interface or space incidence, and the electrical signal is output from the SMA port. The module is mainly used in the fields of nanosecond optical pulse detection, laser radar, optical fiber coherent tomography and optical fiber sensing system.

 

 Product features

 Spectral range 400 ~ 1700nm

 
3dB bandwidth multiple options

 Optional with output monitoring

 Response Time Min.<0.2ns

 CMRR > 30dB

 Low noise

 DC 12V single power supply

 Compact 47x42x20mm

 Can be customized

 

 Scope of application

 Ns optical pulse detection

 Laser radar

 Brillouin optical fiber sensing system

 ∅- OTDR

 
Optical coherence tomography (OCT)

 

 Optional

 Photosensitive surface

 Bandwidth

 Gain

 Coupling mode

 

      

          Technical parameters


siIicon balanced photodetector module

Parameter

HC-BPRM-BW-S-FA/FS

Detector type

Si / PIN

Optical input

Free Space or FC/APC

Wavelength range

400-1100nm

Peak responsivity

0.5 A/W @ 905 nm

Photosensitive surface   diameter

1.2mm

0.5 mm

Common Mode Rejection   Ratio (CMRR)

>25 dB (typ. >30   dB)

Bandwidth (3dB)

RF OUTPUT

10MHz

350MHz

Conversion gain @ high   impedance

26x103V/W

5x 103 V/W

Rise time

30ns

1ns

Saturated optical power

Out of balance

115uW

0.76mW

 Balance

5mW

Coupling mode

DC (AC optional)

Output impedance

50W

Equivalent noise power   NEP

7.0 pW/√Hz

42.7 pW/√Hz

Total Output Noise   Voltage *

<0.3mVRMS

<4mVRMS


 

InGaAs balanced   photodetector module (fiber input)

Parameter

HC-BPRM-BW-I--FA

Detector type

InGaAs / PIN

Optical input

FC/APC

Wavelength range

800-1700nm

Peak responsivity

0.9A/W @ 1550 nm

Photosensitive surface   diameter

75mm

Bandwidth (3dB)

RF OUTPUT

10MHz

75MHz

200MHz

400MHz

500MHz

30K~1.5GHz

Conversion gain @ high   impedance

51x 103 V/W

250x 103 V/W

40 x 103 V/W

10x 103 V/W

2x 103 V/W

2x 103 V/W

Rise time

30ns

4.5ns

1.8ns

0.9ns

0.6ns

0.2ns

Common Mode Rejection   Ratio (CMRR)

>30 dB

>30 dB

>25 dB

Saturated Light

Power

Out of balance

58.8uW

12.5uW

97.5uW

0.38mW

1mW

1mW

 Balance

5mW

Coupling mode

DC

AC only

Output impedance

50W

Equivalent noise power   NEP

4.1pW/√Hz

6.9pW/√Hz

11.2pW/√Hz

17.9 pW/√Hz

15pW/√Hz

12.9pW/√Hz

Total Output Noise   Voltage *

<0.3mVRMS

<15mVRMS

< 6.3mVRMS

<4mVRMS

<1mVRMS

<1mVRMS

 

InGaAs balanced photodetector   module (spatial light input)

Parameter

HC-BPRM-BW-I-FS

Detector type

InGaAs / PIN

Optical input

Free Space

Wavelength range

800-1700nm

Peak responsivity

0.9A/W @ 1550 nm

Photosensitive surface   diameter

500mm

Bandwidth (3dB)

RF OUTPUT

75MHz

Conversion gain @ high   impedance

10x 103 V/W

Rise time

4.7ns

Common Mode Rejection   Ratio (CMRR)

>30 dB

Saturated optical power

Out of balance

0.38mW

 Balance

5mW

Coupling mode

DC

Output impedance

50W

Equivalent noise power   NEP

54.4 pW/√Hz

Total Output Noise   Voltage *

< 2.1 mVRMS

 

 

If you need more tecnical documents, Please download.