High Speed Detectors

 

 

Features

  • S21>20GHz, S22< -8dB
  • Response >0.80A/W
  • Extended temperature range
  • SMF-28, PM or specialty MFD fiber

Applications

  • RF Links
  • OC-192, STM-64

 

The EM4 high speed detector range is designed for high speed digital and analog applications. It comprises a small area InGaAs PIN diode optically coupled to single mode fiber in a hermetic package. The standard product has a 50 Ohm impedance matched RF output on an SMA connector.

The RF characteristics of the product (S21 > 20 GHz; S22 < -8dB; low < 1 dB ripple) make it suitable for host of communication, RF over fiber analog link, and instrumentation applications.

A detailed data sheet is available for download here.

Part Number
Package
Fiber Type
Min Responsivity [A/W]
S21 min [GHz]
S22 max [dB]
Connector
Min Operating
Temperature
[°C]
Max Operating
Temperature
[ °C]
EM169-03
HSD
SMF
0.85
20
-10
FC/APC
-40
85
EM169-04
HSD
SMF
0.85
20
-10
SC/APC
-40
85
EM169-09
HSD
PM
0.85
20
-10
FC/APC
-40
85

 

 

 


Parameter

Sym.

Condition

Min

Typ.

Max

Unit

Wavelength Range

λ

  

1280

  

1620

nm

Optical Input Power

POPT

      

6

mW

Responsivity

R

λ=1545nm

0.80

0.95

  

A/W

Dark Current

ID

No optical input power

    

100

nA

3dB Bandwidth

BW

  

20

    

GHz

Electrical Return Loss

S22

DC-18GHz

    

-10

dB

18 – 20GHz

    

-8

dB

Flatness

ΔG

DC – 20GHz

-3

  

2

dB

Optical Return Loss

ORL

DC – 20GHz

  

-35

-32

dB

Output Termination

Z22

DC – 20GHz

  

50

  

Ω

Operating Temperature

    

-40

  

85

°C