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CWDM&DWDM

Infiberone2017-01-05 11:02:566890

CWDM&DWDM

 

Definition of WDM

WDM: Wavelength Division Multiplexing

A technology that puts data from different optical sources together, on a single optical fiber, with each signal carried on its own separate light wavelength or optical channel

 

DWDM Technology Definitions

DWDM – Dense WDM Technology for amplified, high bandwidth applications. Ideal for Metro Core, Regional, and Long Haul applications. Squeezes as many channels as possible into optical spectrum supported by today’s optical amplifier technology. Characterized by a tight channel spacing over a narrow wavelength spectrum, typically 50 – 200 GHz (I.e. ~0.4nm – 1.6nm) spacing in the C and L Bands(Infiberone DWDM optical transceiver focus on  DWDM 100GHz from 17Ch to 61Ch)

 

       Dense WDM Wavelength Plan – ITU-T G.694.1

ITU-T G.694.1 Standard DWDM Channel Assignments

200 GHz spacing = 20 Channels in C Band

100 GHz spacing = 40 Channels in C Band

50 GHz spacing = 80 Channels in C Band

25 GHz spacing = 160 Channels in C Band

Standard ITU Grid allows lasers and filters to be built to a common specification

 

ITU DWDM 100GHz CH17 to CH61

Channel #

Frequency (THz)

Center Wavelength (nm)

17

191.7

1563.86

18

191.8

1563.05

19

191.9

1562.23

20

192.0

1561.42

21

192.1

1560.61

22

192.2

1559.79

23

192.3

1558.98

24

192.4

1558.17

25

192.5

1557.36

26

192.6

1556.55

27

192.7

1555.75

28

192.8

1554.94

29

192.9

1554.13

30

193.0

1553.33

31

193.1

1552.52

32

193.2

1551.72

33

193.3

1550.92

34

193.4

1550.12

35

193.5

1549.32

36

193.6

1548.51

37

193.7

1547.72

38

193.8

1546.92

39

193.9

1546.12

40

194.0

1545.32

41

194.1

1544.53

42

194.2

1543.73

43

194.3

1542.94

44

194.4

1542.14

45

194.5

1541.35

46

194.6

1540.56

47

194.7

1539.77

48

194.8

1538.98

49

194.9

1538.19

50

195.0

1537.4

51

195.1

1536.61

52

195.2

1535.82

53

195.3

1535.04

54

195.4

1534.25

55

195.5

1533.47

56

195.6

1532.68

57

195.7

1531.9

58

195.8

1531.12

59

195.9

1530.33

60

196.0

1529.55

61

196.1

1528.77

EDFA Gain Spectrum

 


CWDM Technology Definitions

CWDM – Coarse WDM Technology for un-amplified, lower channel count applications. Less cost than DWDM. Ideal for Metro Access applications. Characterized by a wide channel spacing over a wide optical spectrum – 20 nm spacing from 1270 – 1610 nm 

CWDM VS DWDM

CWDM

DWDM

Defined by wavelengths

Defined by frequencies

Short-range communications

Long-haul transmissions

Uses wide-range frequencies

Narrow frequencies

Wavelengths spread far apart

Tightly packed wavelengths

Wavelength drift is possible

Precision lasers required to keep channels on target

Breaks the spectrum into big chunks

Dices the spectrum into small pieces

Light signal isn't amplified

Signal amplification maybe used

 

Infiberone 10Gb/s SFP+ CWDM

Main Feature

Supports 8Gb/s and 10Gb/s data rates 

Single 3.3V Supply

Un-cooled CWDM DFB Laser

CWDM 10km 16 wavelengths, from 1270nm to 1610nm 

CWDM 40km or 80km  8 wavelengths, from 1470nm to 1610nm 

SFP+ MSA SFF-8431 Compliant

Digital Diagnostic SFF-8472 Compliant

Power Consumption <1.5 w

                                  

Application

Datacom 10G Ethernet CWDM

Switch or Router

Infiberone 10Gb/s SFP+ CWDM Product list

10G CWDM SFP+

P/N

Data Rate

Range

GCP-XX8G-XXC

8.5Gbps

70~80km

GCP-XX192-01C

10Gbps

10km

GCP-XX192-04C

10Gbps

40km

GCP-XX192-XXC

10Gbps

70~80km

Infiberone 10Gb/s XFP CWDM

Main Feature

Supports 9.95Gb/s to 10.3Gb/s data rates

Un-cooled CWDM DFB Laser

CWDM 10km 16 wavelengths, from 1470nm to 1610nm

CWDM 40km or 80km 8 wavelengths, from 1470nm to 1610nm 

XFP MSA package with LC connector

No reference clock required,

Power dissipation <3.5W

Digital Diagnostic INF-8077i Compliant

Temperature range 0 to 70 ° C

Application

SONET (OC-192) / SDH (STM-64)

Datacom 10G Ethernet CWDM

Infiberone 10Gb/s XFP CWDM Product list

10G CWDM XFP

P/N

DATA RATE

Range

GXC-XX192-04C

10Gbps

40km

GXC-XX192-XXC

10Gbps

70km

Infiberone 10Gb/s SFP+ DWDM

Main Feature

Supports 8Gb/s and 10Gb/s data rates

DWDM cooled EML laser 

Single 3.3V Supply

DWDM 40km or 80km 100GHz DWDM ITU Grid, from 16Ch to 61Ch

SFP+ MSA SFF-8431 Compliant

Digital Diagnostic SFF-8472 Compliant

Power Consumption <1.5 w

                                  

Application

Datacom 10G Ethernet DWDM

Switch or Router

10G DWDM SFP+

P/N

Data Rate

Range

GDP-XX192-04C

10Gbps

40km

GDP-XX192-08C

10Gbps

80KM

Infiberone 10Gb/s XFP DWDM

Main Feature

Supports 9.95Gb/s to 10.3Gb/s data rates

DWDM cooled EML laser 

DWDM 40km or 80km 100GHz DWDM ITU Grid, 40CH,  from 16Ch to 61Ch

XFP MSA package with LC connector

No reference clock required,

Power dissipation <3.5W

Digital Diagnostic INF-8077i Compliant

Temperature range 0 to 70 ° C

Application

SONET (OC-192) / SDH (STM-64)

Datacom 10G Ethernet DWDM

10G DWDM XFP

P/N

Data Rate

Range

GXD-XX192-04C

10Gbps

40km

GXD-XX192- 08C

10Gbps

80KM

GXD-XX192- 12C

10Gbps

120KM* with EDFA

DWDM System Solutions

`Z2966F(69ADTY]MAPWKXD7

CWDM MUX &DEMUX

1. Duplex Bi-Directional CWDM MUX and DEMUX

CWDM OADM

1. CWDM OADM OVER Dual FIBER (Duplex Bi-Directional) (Combined with MUX/DEMUX 1)

 

 

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