High Bandwidth DFB's

 

Features

  • Up to 18 mW output power
  • High Bandwidth > 10 GHz
  • Ultra-fast pulsing capability
  • Laser welded and hermetically sealed
  • Built in thermistor and monitor detector
  • Rugged to shock and vibration

Applications

  • Analog RF Links
  • Seeding
  • Pulsing
  • Sensing
  • CATV

 

General Description

 The AA0701, 1310nm or 1550nm distributed feedback laser (DFB) is a InGaAsP/InP multi-quantum well (MQW) laser diode. The module is ideal in applications where high bandwidth, mode stability, low RIN and stable output power is needed. The module contains a cooler, thermistor, monitor detector and bias-T. The module is designed and built using EM4’s high reliability platform for defense components. A full data sheet can be downloaded here.

Optical And Electrical Characteristics

TOP=25°C, continous wave and beginning of life unless otherwise specified.

 

Parameter

Sym.

Condition

Min

Typ.

Max

Unit

Operating Chip Temperature

TCHIP

  

15

  

35

°C

Threshold Current

ITH

    8

 

  20

mA

Laser Drive Current

IOP

    

75

100

mA

Laser Forward Voltage

VF

I= IMAX

    1.6

2

V

Output Power

POP

I=IOP

18

    

mW

Center Wavelength

λ

P=POP

 

 1310
 1550

  

nm

Linewidth

Δ ν

    

1

  

MHz

Relative Intensity Noise

RIN

P=POP, 0.2GHz→14GHz

    

-150

dB/Hz

Side Mode Suppression

SMSR

P=POP

30

    

dB

Optical Isolation

ISO

  

30

35

  

dB

Polarization Extinction Ratio

PER

  

17

19

  

dB

Monitor Photo Diode Current

IPD

  

50

    

 µA

Monitor Photo Diode Dark Current

ID

      

100

nA

Tracking Error

    

-0.5

  

0.5

dB

TEC Current

  

TOP=70°C, P=POP, TCHIP=25°C

    

2.0

A

TEC Voltage

  

TOP=70°C, P=POP, TCHIP=25°C

    

2.5

V

Thermistor Resistance

RTH

T=25°C

9500

10000

10500

 Ω

Thermistor β coefficient

β

0 / 50°C

  

3892