PINFET Optical Receiver for fibre optic gyro systems

Recently developed optical fibres show particularly favourable loss and dispersion characteristics at transmission wavelengths near 1.3 microns and1.5 microns. Our receiver design is based on a hybrid assembly of a PIN photodiode and a high impedance FET preamplifier. This approach provides the best receiver sensitivity whilst offering potentially greater reliability than alternative receiver concepts. The FOGPhotonics PINFET provides an excellent solution for optical receiver systems that require both high sensitivity and wide dynamic range. Applications include telecommunications lineterminating equipment or repeaters and optical sensor systems where a user adjustable gain may be desirable for optimizing system performance.

Product Features

    ● InGaAs PIN detector plane structure
    ● Fixed transimpedance amplifier circuit
    ● Working wavelength of 1100nm ~ 1650nm
    ● 14needle shallow cavity dual-in-line package
    ● With SM or PM fiber coupled,FC/PC FC/APC connector optional
    ● High and low temperature storage testing
    ● Full temperature operating testing
    ● High Sensitivity PIN-FET Receiver Module( Transimpedance: 10-1200Kohms, ,dynanmic range: 25dB, package: 14pins/8 pins)


    PIN-FET Hybrid Receiver Working Theory

    PIN-FET Designed by FOGPhotonics Including two mainly electronic part-byway Detector and operational amplifier circuit(OAC).The Byway detector is PD Which Converts an optical signal into an electrical signal,The OAC is mainly used to amplify the PD converted electrical signals to achieve an ideal output signal. 

    The schematic diagram of the working Theory is shown in the following figure:


Technical Specification

Specifications @ 25℃ (+/- 5.0 VDC)


Type

Bandwidth*

(MHz)

Sensitivity

(dBm)

Transimpedance

(Kohms)

Dynamic range (dB)

Noise

(mV)

IDPM0030

180

-40

70

25

0.1

IDPM0070

120

-43

30

25

0.1

IDPM0010

60

-45

10

25

0.1

IDPM0040

40

-49

40

25

0.1

IDPM0060

30

-50

60

25

0.2

IDPM0400

12

-52

400

25

0.3

IDPM0800

8

-54

800

25

0.5

IDPM1200

6

-55

1200

25

0.7

IDPM1400

4

-56

1400

25

0.9

NOTE:

From July 2017 FOGPhotonics accept higher bandwidth at 450MHZ( Data rate 622M);900MHZ(Data rate 1.25G);1700MHz(Data rate 2.5G) OEM service.Min qty:10pcs Please contact us for more details: info@fogphotonics.com  

 

Parameter @25℃ (+/- 5.0 VDC)


Parameter

Symbol

Unit

Min

Typ

Max

Test condition

Electrical Characteristics

Rate

-

Mb/s

2

-

280

 

Transimpedance

-

KΩ

30

 

8000

 

Detector dark current

Id

nA

-

0.2

5

 

Output impedance

Ro

Ω

-

50

-

 

-3dB Bandwidth

BW

MHz

1

-

180

 

Output voltage

Vout

mVp-p

-

1000

1200

RL=50Ω

Optical Characteristics

Sensitivity

S

dBm

-56

-

-39

NRZ BER=10-9

Sensitivity vs temperature

-

dB

-

1

1.5

20℃~65℃

Overload

Pin-max

dBm

-3

-

 

 

PIN Responsibility

R

A/W

0.9

-

-

λ=1310nm,Vr=-5V

0.95

-

-

λ=1550nm,Vr=-5V

Wavelength range

λ

nm

1100

-

1650

 

+5 V Operating current

IOC+5

mA

-

25

35

 

-5 V Operating current

IOC-5

mA

-

10

15

 

 

Absolute Maximum Ratings


Parameter

Symbol

Unit

Min

Max

Storage Temperature Range

Ts

℃

-40

85

Relative Humidity

RH

%

-

85

Positive Power Supply Voltage

Vcc/Vee

V

-

6

Negative Power Supply voltage

Vcc/Vee

V

 

-6

Reverse Detector Bias Voltage

-

V

-

-15

Forward Current

If

mA

-

2

Reverse photoCurrent

Ir

mA

-

5

Fiber coupled power

Pin

mW

 

5

Lead Solder Temperature

-

℃

-

260

Lead Soldering Time

-

s

-

10

*The sensitivity is calculated by using the PINFET transimpedance, the noise voltage (which is RMS of no light input) and the PIN responsivity. And it is at the conditions of room temperature and NRZ code Bit Error Rate better than 10-9.


Recommended Operating Conditions


Parameter

Symbol

Unit

Min

Typ

Max

Case Operating Temperature Range

Tc

℃

-20

 

+70

Operating Voltage

VOP

v

 

±5

 

 

14pin Package


Mini 8pin SK-DIP package



Pin definition


14 pin 

pin

function

pin

function

1

-5V（Bias Voltage）

8

Grounding

2

NC

9

NC

3

Grounding

10

+5V Power Supply

4

-5V Power Supply

11

NC

5

Grounding

12

NC

6

NC

13

NC

7

Signal Output

14

NC


8 pin 

Pin

Definitions

Pin

Definitions

1

NC

5

-5V Power Supply

2

-5V Power Supply

6

Signal Output

3

Grounding Power Supply

7

Grounding Signal

4

+5V Power Supply

8

Case

Applications

● Fiber optic gyro system

● Fiber communication system
● Fiber sensor system


Ordering information

 

IDPM

xxxx

xx

xxx

 

1200:1200KΩ

SP:SM Fiber,FC/PC Connector

D14:DIP14

 

0800:800KΩ

SN:SM Fiber,None connector

D08:DIP8

 

0600:600KΩ

SA:SM Fiber,FC/APC Connector

MD08:MINI DIP8

 

0400:400KΩ

PA:PM Fiber,FC/APC Connector

 

 

0060:60KΩ

PP:PM Fiber,FC/PC Connector

 

 

0040:40KΩ

PN:SM Fiber,None connector

 


Product Testing Report   

Dimensions of  PINFET Optical Receiver      

 

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