Home Fiber Coupled Laser Diodes Wavelength Stabilized Laser Diodes Wavelength stabilized single mode fiber coupled laser diode 20mW @ 1570nm, QDFBLD-1570-20
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Wavelength stabilized single mode fiber coupled laser diode 20mW @ 1570nm, QDFBLD-1570-20

Wavelength stabilized single mode fiber coupled laser diode 20mW @ 1570nm, QDFBLD-1570-20
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List price: $1209.00
Online price: $1090.00
    • DFB wavelength stabilized single mode laser.
    • CW or pulsed operation, bandwidth >=2GHz
    • Low threshold current and high slope efficiency
    • Operating temperature range -20 oC to +60oC
    • Wavelength/temperature coefficient 0.1nm/oC
    • Wavelength/current coefficient 1-4pm/mA
    • Built-in optical isolator, monitor photodiode, thermo-electric cooler and thermistor.
    • Single mode (SMF-28) only
    • Optional FC/PC or FC/APC connector.
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Specifications

Test conditions: temperature 25oC, CW operation

Parameter

Symbol

Min

Typ

Max

Unit

Output power from pigtail

Pf

 

20

 

 mW

Wavelength

l

1567

1570

1573

nm

Wavelength temperature tunability

-

 

0.1

 

nm/oC

Spectral width (FWHM)

Dl

 

1

10

MHz
Side mode supression ratio SMSR 30 35   dB

Forward current

If

 

55

80

 mA

Threshold current

Ith

 

10

20

mA

Forward voltage

Vf

 

1.3

1.8

V

Rise time in pulse mode

tr

 

 

0.25

ns
Relative intensity noise (45-600MHz) RIN     -155 dB/Hz
Isolation I so 25 35   dB

Monitor current @ VrPD=5V

Im

0.07

 

 

mA

TEC current @  DT = 50oC

ITEC

 

 

1

A

TEC voltage @ DT = 50oC

VTEC

 

 

2

V

Thermistor B constant

 

 

3900

 

K

Thermistor resistance

 

9.5

10.0

10.5

kOhm
Chip operating temperature  Top -20   60 oC

Storage temperature

Tstg

-40

 

75

oC

Operating case temperature

Tc

0

 

60

oC

PD reverse voltage

VrPD

 

5

15

V

Lead soldering temperature @ 10s

-

 

 

260

oC

 

Spectrum

Measured at 10mW ex-fiber power, in CW mode

 

Single frequency output. Note the linewidth shown is measured with Opticla Spectrum Analyzer with limited resolution. The actual linewidth is 1MHz typical, 10MHz max.     

 

Pin Configuration

Pin Configuration

(units in mm)


LD anode is not connecting to the case. Case ground is pin #8, 9, 10, and 14. Package height 9.25mm, pin height 5.6mm.
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Pin Configuration
spectrum
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