UBD Series 1060nm Band OCT-Specific Ultra-Low Noise Balanced Detector     


The UBD Series Ultra-Low-Noise Balanced Photodetector is an upgraded version of the MBD Series. Under the same bandwidth and transimpedance gain, the UBD Series achieves a significantly lower noise floor—approximately one-third that of the MBD Series—resulting in higher sensitivity and an improved signal-to-noise ratio (SNR). Optimized for 1060 nm Optical Coherence Tomography (OCT) applications, the detector incorporates an advanced photodiode packaging design that minimizes the effects of multiple internal reflections, thereby enhancing OCT image quality.



Product model


Name Model Price

Parameter


Features

● Ultra-low noise

● High Gain

● High Bandwidth

● The structure is compact.

● Built-in low-noise isolated power supply

Specifications

PN#

UBD-100M-A10

UBD-200M-A10

UBD-300M-A10

UBD-400M-A10

UBD-500M-A10

UBD-800M-A10

UBD-1G-A10

UBD-1.2G
  -A10

UBD-1.5G-A10

UBD-2G-A10

UBD-2.5G-A10

Unit

Detector Type

InGaAs


Wavelength

800~1700

nm

Bandwidth

100M

200M

300M

400M

500M

800M

1G

1.2G

1.5G

2G

2.5G

Hz

Detector   Responsivity

0.95

0.95

0.95

0.95

0.95

0.95

0.95

0.95

0.95

0.95

0.95

A/W@
  1550nm

Transimpedance   gain

30K

30K

30K

20K

10K

30K

30K

30K

30K

30K

30K

V/A

Saturation   optical power

140

140

140

210

420

140

140

140

140

140

140

μW

NEP

2.5

2.5

2.5

2.9

2.9

3.1

3.1

3.1

3.1

3.1

3.1

pW/Sqrt(Hz)

CMRR

≥30

≥30

≥30

≥30

≥30

≥30

≥30

≥30

≥30

≥30

≥30

dB

Output   Impedance

50

50

50

50

50

50

50

50

50

50

50

Ω

Output Coupling  
  Mode

DC/AC

DC/AC

DC /AC

DC /AC

DC/AC

AC

AC

AC

AC

AC

AC


Supply Voltage

5

5

5

5

5

12

12

12

12

12

12

V

Supply Current

0.4(max)

0.4(max)

0.4(max)

0.4(max)

0.4(max)

0.3(max)

0.3(max)

0.3(max)

0.3(max)

0.3(max)

0.3(max)

A

Optical Input

FC/APC (HI1060)


Radio Frequency   Output

SMA


Dimensions

80*90*25

mm


200 MHz ultra-low noise balanced detector bandwidth curve

1060nm OCT-Specific Mini-Package Balanced Photodetector1.png


Comparison of the Noise Floor Between the Ultra-Low-Noise Balanced Photodetector and a Conventional Balanced Photodetector

1060nm OCT-Specific Mini-Package Balanced Photodetector2.png

Application

● Distributed Optical Fiber Sensing

● Laser Wind Profiler Radar

● Optical  Coherence  Tomography

● Spectral Measurement

● NS-level optical pulse detection

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