1490nm Pulse Laser Diode for OTDR

1490nm Pulse Laser Diode for OTDR
1490nm Pulse Laser Diode for OTDR
1490nm Pulse Laser Diode for OTDR
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1490nm Pulse Laser Diode for OTDR

1490nm Pulse Laser Diode for OTDR

 

The 1490nm pulse laser diodecan be used as a light source for OTDR device. It can produce the laser withthe wavelength between 1470nm to 1510nm. By detecting the reflection lightpulse with a built-in monitor, users can analyze the interior conditions forthe optical fiber simply from one end of the optical fiber. And we can get suchinformation as the length, node and break point of the fiber.

Our pulse laser diode hashigh output power for 60mW to 80mW and the IFP is 450mA. And pulse width is10us with the duty of 1%. Due to the large wavelength of the optical pulse, ithas less loss in the fiber. Therefore, the power consumption is lower for thesame transmission distance. The pulse width is between 5nm to 10nm, whichenables large capacity of energy and it can be used as a light source even inthe long optical fiber.


Absolute Maximum Ratings

Parameter

Symbol

Min.

Typical

Max.

Unit

Pulsed Forward Current*1

IFP

 

 

1000

mA

Reverse Voltage

VR

 

 

2

V

Reverse Voltage (monitor PD)

VRM

 

 

10

V

Reverse Current (monitor PD)

IFPM

 

 

2

mA

Operating Case Temperature

TC

0

 

60

℃

Storage Temperature

Tstg

-40

 

85

℃

Lead Soldering Temperature

Tsld

 

 

260(10s)

℃

Relative Humidity (noncondensing)

RH

 

 

85

%

 

 

Optical& Electrical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Notes

Forward Voltage

VFP

 

 

3.5

V

IFP = 450 mA, PW = 10 μs, Duty = 1%

Threshold Current

Ith

 

8

30

mA

 

Optical Output Power From Fiber

Pf

60

80

 

mW

IFP =450 mA, PW = 10 μs, Duty = 1%

Center Wavelength

λC

1470

1490

1510

nm

RMS (−20 dB), IFP = 450 mA, PW = 10 μs, Duty = 1%

Spectral Width