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Wavelength Laser Source Module

The WLS-XXXXX2114-01 DFB laser modules are designed for forward-path CATV applications, especially digital transmission using Quadrature Amplitude Modulation (QAM). The modules are designed to incorporate high output power while maintaining high linearity. The devices feature standard pin assignments (compatible with OC-48).

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Description

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1.Product Description

PN:WLS-XXXXX2114-01

The WLS-XXXXX2114-01 DFB laser modules are designed for forward-path CATV applications, especially digital transmission using Quadrature Amplitude Modulation (QAM). The modules are designed to incorporate high output power while maintaining high linearity. The devices feature standard pin assignments (compatible with OC-48).

These devices offer excellent performance in directly-modulation QAM transmission, offering considerable cost savings over externally-modulated solutions. The combination of high performance and very reasonable price make these modules the most cost-effective CATV transmitter solutions in the industry.

Applications:

l1550-nm broadcast and point-to-point applications

lDigital CATV transmission

lSensing

lTesting system

Features:

lMeets GR 468 reliability specifications


2.Performance Specifications

2.1 Absolute Maximum Ratings

Parameter

Symbol

Condition

Min.

Max.

Unit

Operating Case Temperature

Tc

I=Iop

-20

65

°C

StorageTemperature

Tstg

--

-40

85

°C

Laser Forward Current

If

--

--

120

mA

Laser Reverse Bias

Vr

--

--

2

V

Photodiode Reverse Bias

Vrpd

--

--

10

V

TEC Current

Itec

-20 °C < Tc <+65 °C,

Top=25 °C

If=100 mA


1.5

A


2.2 Electrical and Optical Characteristics

Parameters are over operating temperature range unless otherwise noted.

Parameters

Symbol

Test Conditions

Min

Typ

Max

Unit

Center Wavelength*

λc

PL= Po, CW, Tset = 20C - 35C

1530

--

1560

nm

Optical Output Power

Po

CW, TL= Tset

8

--

--

mW

Optical Isolation

IS

T=25 °C

30

--

--

dB

Side-mode Suppression Ratio

SMSR

PL= Po,

30

--

--

dB

Linewidth

FWHM

PL= Po, CW

--

6

10

MHz

Chirp

Δλ/Δf

PL= Po, 500 MHz

40

--

120

MHz/mA

Threshold Current

Ith

TL=25 °C

--

15

20

mA

Operating Current

Iop

PL= Po,

--

--

120

mA

Forward Voltage

VF

PL= Po,


1.2

1.9

V

Monitor Current

Imon

Vrpd=5 V

9

--

150

μA/mW

Monitor Dark Current

ID

Vrpd=5 V

--

--

200

nA

Operating Case Temperature

T


-20

--

65

°C

Tracking Error

Imon=const, γ=10 log (Po/10 mW) [dB]

-0.5

--

0.5

dB

Thermistor Resistance

Rt

T=25 °C

9.5

--

10.5

Thermistor B Constant

B

T=25 °C

--

3900

--

K

TEC Current

IC

ΔT=40 °C

--

--

1.5

A

TEC Voltage

VC

ΔT=40 °C

--

--

2.0

V

*See available wavelengths from Ordering Options. DWDM wavelength set by laser sub-mount temperature.

2.3 RF Characteristics

Parameter

Symbol

Test Conditions

Min.

Typical

Max.

Unit

Input impedance

ZIN

nominal


25


Ω

Frequency Range

F

--

45

-

3000

MHz

Frequency Response

|S21|

If=Iop

45 MHz-870 MHz

T=25 °C

--

±0.5

--

dB

If=Iop

45 MHz-3000 MHz

T=25 °C

--

±1.0

--

RF return loss

S11

50 – 870 MHz, P=PF, @ 50Ω,

6

7


dB

Relative Intensity Noise

RIN

CW, PL= Po, Note 1

--

--

-155

dB/Hz

2ndOrder Intermodulation

IMD2

Note 2, 42 MHz, @ f2-f1

--

--

-44

dBc

3rdOrder Intermodulation

IMD3

Note 2, 511.25 MHz, @ 2f1-f2

--

--

-53

dBc

Note 1: Test condition: PL= Po, f = 500 MHz, Optical reflection<-40 dB, 0 km fiber.

Note 2: Test condition: Po ≥ 5 mW, 2 unmodulated carriers (f1=553.25, f2=595.25), 35% OMI/ carrier, 50 km zero dispersion single mode fiber, optical reflection <-40 dB.


3.Pin Information & Electrical Schematics:

8

1

Thermistor

2Thermistor
3DC Laser Bias (-)
4MPD Anode (-)
5MPD Cathode (+)
6Thermoelectric Cooler (+)
7Thermoelectric Cooler (-)
Case Ground
9Case Ground
10Case Ground
11Laser Common (+), Case Ground
12Laser Modulation (-)
13Laser Common (+), Case Ground
14Case Ground

图片11.png


4.Outline Diagram:

Dimensions are in millimeters

图片12.png

5.测试报告/Test Report:

每个产品需附上对应的测试报告,包含以下参数:

-光输出功率,中心波长,P-I曲线,PIN脚定义等。

Test report will be attached with each product. The following characteristic test data should be included:-Optical Output Power, Center Wavelength, P-I curve, Pin Assignments.


6.产品包装/Packaging:

黑色防静电塑料盒真空包装/ Black vacuumize anti-static plastic package.

Ordering Option*

Frequency (THz)

Power (mW)

Wavelength (nm)

WLS-C19102114-01

191.9

10

1562.23

WLS-C20102114-01

192.0

10

1561.42

WLS-C21102114-01

192.1

10

1560.61

WLS-C22102114-01

192.2

10

1559.79

WLS-C23102114-01

192.3

10

1558.98

WLS-C24102114-01

192.4

10

1558.17

WLS-C25102114-01

192.5

10

1557.36

WLS-C26102114-01

192.6

10

1556.55

WLS-C27102114-01

192.7

10

1555.75

WLS-C28102114-01

192.8

10

1554.94

WLS-C29102114-01

192.9

10

1554.13

WLS-C30102114-01

193.0

10

1553.33

WLS-C31102114-01

193.1

10

1552.52

WLS-C32102114-01

193.2

10

1551.72

WLS-C33102114-01

193.3

10

1550.92

WLS-C34102114-01

193.4

10

1550.12

WLS-C35102114-01

193.5

10

1549.32

WLS-C36102114-01

193.6

10

1548.51

WLS-C37102114-01

193.7

10

1547.72

WLS-C38102114-01

193.8

10

1546.92

WLS-C39102114-01

193.9

10

1546.12

WLS-C40102114-01

194.0

10

1545.32

WLS-C41102114-01

194.1

10

1544.53

WLS-C42102114-01

194.2

10

1543.73

WLS-C43102114-01

194.3

10

1542.94

WLS-C44102114-01

194.4

10

1542.14

WLS-C45102114-01

194.5

10

1541.35

WLS-C46102114-01

194.6

10

1540.56

WLS-C47102114-01

194.7

10

1539.77

WLS-C48102114-01

194.8

10

1538.98

WLS-C49102114-01

194.9

10

1538.19

WLS-C50102114-01

195.0

10

1537.40

WLS-C51102114-01

195.1

10

1536.61

WLS-C52102114-01

195.2

10

1535.82

WLS-C53102114-01

195.3

10

1535.04

WLS-C54102114-01

195.4

10

1534.25

WLS-C55102114-01

195.5

10

1533.47

WLS-C56102114-01

195.6

10

1532.68

WLS-C57102114-01

195.7

10

1531.90

WLS-C58102114-01

195.8

10

1531.12

WLS-C59102114-01

195.9

10

1530.33

WLS-C60102114-01

196.0

10

1529.55

WLS-C61102114-01

196.1

10

1528.77

WLS-C62102114-01

196.2

10

1527.99

WLS-C19082114-01

191.9

8

1562.23

WLS-C20082114-01

192.0

8

1561.42

WLS-C21082114-01

192.1

8

1560.61

WLS-C22082114-01

192.2

8

1559.79

WLS-C23082114-01

192.3

8

1558.98

WLS-C24082114-01

192.4

8

1558.17

WLS-C25082114-01

192.5

8

1557.36

WLS-C26082114-01

192.6

8

1556.55

WLS-C27082114-01

192.7

8

1555.75

WLS-C28082114-01

192.8

8

1554.94

WLS-C29082114-01

192.9

8

1554.13

WLS-C30082114-01

193.0

8

1553.33

WLS-C31082114-01

193.1

8

1552.52

WLS-C32082114-01

193.2

8

1551.72

WLS-C33082114-01

193.3

8

1550.92

WLS-C34082114-01

193.4

8

1550.12

WLS-C35082114-01

193.5

8

1549.32

WLS-C36082114-01

193.6

8

1548.51

WLS-C37082114-01

193.7

8

1547.72

WLS-C38082114-01

193.8

8

1546.92

WLS-C39082114-01

193.9

8

1546.12

WLS-C40082114-01

194.0

8

1545.32

WLS-C41082114-01

194.1

8

1544.53

WLS-C42082114-01

194.2

8

1543.73

WLS-C43082114-01

194.3

8

1542.94

WLS-C44082114-01

194.4

8

1542.14

WLS-C45082114-01

194.5

8

1541.35

WLS-C46082114-01

194.6

8

1540.56

WLS-C47082114-01

194.7

8

1539.77

WLS-C48082114-01

194.8

8

1538.98

WLS-C49082114-01

194.9

8

1538.19

WLS-C50082114-01

195.0

8

1537.40

WLS-C51082114-01

195.1

8

1536.61

WLS-C52082114-01

195.2

8

1535.82

WLS-C53082114-01

195.3

8

1535.04

WLS-C54082114-01

195.4

8

1534.25

WLS-C55082114-01

195.5

8

1533.47

WLS-C56082114-01

195.6

8

1532.68

WLS-C57082114-01

195.7

8

1531.90

WLS-C58082114-01

195.8

8

1531.12

WLS-C59082114-01

195.9

8

1530.33

WLS-C60082114-01

196.0

8

1529.55

WLS-C61082114-01

196.1

8

1528.77

WLS-C62082114-01

196.2

8

1527.99


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