Huawei OptiX BWS 1600G. Technical Description - part 16

6 Technical Specifications

6.8.14 LDG

Table 6-48 Optical interface parameter specifications at the client side of the LDG board

Parameters

Unit

Specifications

Optical interface rate

Gbit/s

1.25

Transmitter parameter specifications at point S

Laser operating wavelength

nm

1270-1355

770-860

Maximum mean launched power

dBm

-3.0

0

Minimum mean launched power

dBm

-11.5

-9.5

Minimum extinction ratio

dB

+9

+9

Receiver parameter specifications at point R

operating wavelength range

nm

1270-1355

770-860

Receiver sensitivity

dBm

-19

-17

Receiver overload

dBm

-3

0

Maximum reflectance

dB

-12

-12

Table 6-49 Optical interface parameter specifications at the DWDM side of the LDG board

Parameters

Unit

Specifications

Channel spacing

GHz

100

Line code format

-

NRZ

Transmitter parameter specifications at point Sn

Maximum mean launched power

dBm

0

Minimum mean launched power

dBm

-10

Minimum extinction ratio

dB

+10

Central frequency

THz

192.10-196.00

Central frequency deviation

GHz

±10

Maximum -20dB spectral width

nm

0.2

Minimum SMSR

dB

35

Maximum dispersion

ps/nm

12800

Eye pattern mask

-

Compliant with G.957

Receiver parameter specifications at point Rn

6-48

6 Technical Specifications

Parameters

Unit

Specifications

Receiver type

-

APD

PIN

Working wavelength range

nm

1200-1650

1200-1650

Receiver sensitivity

dBm

-25

-18

Receiver overload

dBm

-9

0

Maximum reflectance

dB

-27

-27

6.8.15 FDG

Table 6-50 Optical interface parameter specifications at the client side of the FDG board

Parameters

Unit

Specifications

Optical interface rate

Gbit/s

1.25

Transmitter parameter specifications at point S

Laser operating wavelength

nm

1270-1355

770-860

Maximum mean launched power

dBm

-3.0

0

Minimum mean launched power

dBm

-11.5

-9.5

Minimum extinction ratio

dB

+9

+9

Receiver parameter specifications at point R

operating wavelength range

nm

1270-1355

770-860

Receiver sensitivity

dBm

-19

-17

Receiver overload

dBm

-3

0

Maximum reflectance

dB

-12

-12

Table 6-51 Optical interface parameter specifications at the DWDM side of the FDG board

Parameters

Unit

Specifications

Channel spacing

GHz

100

Line code format

-

NRZ

Transmitter parameter specifications at point Sn

Maximum mean launched power

dBm

0

Minimum mean launched power

dBm

-10

6-49

6 Technical Specifications

Parameters

Unit

Specifications

Minimum extinction ratio

dB

+10

Central frequency

THz

192.10-196.00

Central frequency deviation

GHz

±10

Maximum -20dB spectral width

nm

0.2

Minimum SMSR

dB

35

Maximum dispersion

ps/nm

12800

Eye pattern mask

-

Compliant with G.957

Receiver parameter specifications at point Rn

Receiver type

-

APD

PIN

Working wavelength range

nm

1200-1650

1200-1650

Receiver sensitivity

dBm

-25

-18

Receiver overload

dBm

-9

0

Maximum reflectance

dB

-27

-27

6.8.16 Jitter Transfer Characteristics

The OTU has the same jitter transfer characteristics as the SDH regenerator. Its

jitter transfer function should be below the curve shown in Figure 6-2. For its

parameter specifications, refer to Table 6-52.

Jitter Gain

P

-20dB/10dec

F

0

fc

Jitter Frequency

Figure 6-2 OTU jitter transfer characteristics

Table 6-52 OTU jitter transfer characteristics parameter specifications

STM Level

Fc (kHz)

P (dB)

STM-1/OC-3 (A)

130

0.1

STM-4/OC-12 (A)

500

0.1

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6 Technical Specifications

STM Level

Fc (kHz)

P (dB)

STM-16/OC-48 (A)

2000

0.1

STM-64/OC-192 (A)

1000

0.1

When the OTU with out-band FEC function is employed, the jitter transfer function

should be tested by a pair of OTUs, that is, an OTU with coding function and an

OTU with decoding function are combined (P = 0.2 dB) to peform the test. See

Figure 6-3.

FEC encoded signal

FEC coder

FEC decoder

OTU of transmitting end

OTU of receiving end

Figure 6-3 OTU with out-band FEC function

6.8.17 Input Jitter Tolerance

The OTU is able to tolerate the input jitter pattern shown in Figure 6-4. The

parameter specifications are given in Table 6-53.

A

A2

A1

f

f0

f1

Figure 6-4 OTU input jitter tolerance

Table 6-53 OTU input jitter tolerance parameter specifications

STM Level

f1 (kHz)

f0 (kHz)

A1 (kHz)

A2 (kHz)

STM-1/OC-3 (A)

6.5

65

0.15

1.5

STM-4/OC-12 (A)

25

250

0.15

1.5

STM-16/OC-48 (A)

1,000

100

0.15

1.5

STM-64/OC-192 (A)

4,000

400

0.15

1.5

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6 Technical Specifications

6.8.18 Jitter Generation

Jitter generation for the OTU should be in compliance with the requirements listed

in Table 6-54.

Table 6-54 Jitter generation parameter specifications for OTU

STM Level

Interface Measurement band

Peak-peak

amplitude (UI)

High-pass (KHz)

Low-pass (MHz)

STM-1/OC-3 (A)

0.5

1.3

0.3

65

1.3

0.1

STM-4/OC-12 (A)

1

5

0.3

250

5

0.1

STM-16/OC-48 (A)

5

20

0.30

1000

20

0.10

STM-64/OC-192 (A)

20

80

0.30

4000

80

0.10

6.9 Optical Multiplexer/Demultiplexer/Add and Drop

multiplexer

The parameter specifications of the optical multiplexer M40/V40 and

demultiplexer D40 provided by Huawei comply with ITU-T G.671, ITU-T G.692

and related recommendations.

6.9.1 M40 and V40

The parameter specifications of the M40 and V40 are listed in Table 6-55.

Table 6-55 Parameter specifications of the M40 and V40

Parameters

Unit

Specifications (40-channel)

Channel spacing

GHz

100

Insertion loss

dB

<8 /10 (Note 1)

Reflectance

dB

<-40

Working wavelength range

nm

1529-1561/1570-1604 (Note 2)

Isolation (adjacent channels)

dB

>22

Isolation (non-adjacent channels)

dB

>25

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6 Technical Specifications

Parameters

Unit

Specifications (40-channel)

Polarization dependent loss (PDL)

dB

<0.5

Temperature characteristics

pm/°C

<2

Maximum channel insertion loss difference

dB

<3

Note: (1) The value 8 is for the M40 while the value 10 is for the V40. Before delivery, the VOA value of each channel in the V40 is

set as 3 dB. Thus, the value of insertion loss may be 13 dB in testing. The VOA value can be adjusted according to the actual

requirement.

(2) The wavelength of the C-band multiplexer ranges from 1529 nm to 1561 nm, and that of the L-band multiplexer ranges from

1570 nm to 1604 nm.

6.9.2 D40

The parameter specifications of the D40 board are listed in Table 6-56.

Table 6-56 Parameter specifications of the D40

Parameters

Unit

Specifications (40-channel)

Channel spacing

GHz

100

Insertion loss

dB

<8

Reflectance

dB

<-40

Isolation (adjacent channels)

dB

>25

Isolation (non-adjacent channels)

dB

>25

Polarization dependent loss (PDL)

dB

<0.5

Temperature characteristics

pm/°C

<2

Maximum channel insertion loss difference

dB

<3

–1dB spectral width

nm

>0.2

–20dB spectral width

nm

<1.4

6.9.3 MR2

The MR2 provided by Huawei is of the multi-layer dielectric film interference filter

type. Its parameter specifications are listed in Table 6-57.

Table 6-57 Parameter specifications of the MR2

Parameters

Unit

Specifications

Channel spacing

GHz

100GHz

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6 Technical Specifications

Parameters

Unit

Specifications

Working wavelength range

nm

C band: 1529-1570

1dB spectral width

nm

>0.2

Insertion loss of Add/Drop wavelength

dB

<2.5

channel

Insertion loss of pass-through channel

dB

<3.0

Isolation of adjacent channels

dB

>25

Return loss

dB

≥40

Polarization dependent loss (PDL)

dB

<0.2

Polarization mode dispersion (PMD)

ps

≤0.15

Maximum input power

dBm

24

Working temperature

°C

-5 to +55

Temperature characteristics

pm/°C

<2

Insertion variation with temperature

dB/°C

<0.006

6.9.4 DWC

The parameters of the DWC board are listed in Table 6-58.

Table 6-58 Parameters of the DWC board

Parameters

Indices

Unit

Channel spacing

100

GHz

Working wavelength range

1529-1561

nm

Working wavelength number

40

-

Channel attenuation range

0-15

dB

Insertion loss

IN-DROP

≤8.0

dB

IN-MO (Note1)

≤12.0

dB

MI-OUT

≤2.0

dB

ADD-OUT

≤8.0

dB

Insertion loss uniformity

1.0

dB

–0.5 dB bandwidth(Pass bandwidth)

> 50

GHz

Block extinction ratio

> 35

dB

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6 Technical Specifications

Parameters

Indices

Unit

PMD

< 0.5

ps

PDL

< 0.7

dB

Return loss

> 40

dB

Maximum input optical power

25

dBm

Module response time

< 50

ms

Note1: This is the insertion loss when the build-in VOA is set to 0.

6.10 Other Units

6.10.1 FIU

The parameter specifications of the FIU provided by Huawei comply with related

ITU-T recommendations. They are listed in Table 6-59, Table 6-60, Table 6-61 and

Table 6-62.

Table 6-59 Parameter specifications of FIU-01(C+L+1510)

Parameters

Unit

Specifications

Working wavelength range

nm

C-band: 1529-1561

L-band: 1570-1604

Supervisory channel in C-band: 1500-1520

Insertion loss

dB

IN→TC: ≤ 1.5

IN→TL: ≤ 1.5

RC→OUT: ≤ 1.5

RL→OUT: ≤ 1.5

IN→TM (@λM): < 2.0

RM→OUT(@λM): < 2.0

Isolation

dB

IN to TM (@ λC): > 40

IN to TC (@ λL:) > 35

IN to TC (@ λM): > 20

IN to TL (@ λC): > 40

Return loss

dB

> 40

Directivity

dB

> 55

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6 Technical Specifications

Parameters

Unit

Specifications

Polarization dependent loss

dB

< 0.2

(PDL)

Note1: @λM, indicates the measured value of the 1510-nm optical supervisory signals.

@λC, indicates the measured value of the C-band optical signals.

@λL, indicates the measured value of the L-band optical signals.

Table 6-60 Parameter specifications of FIU-02(C+L+1510+1625)

Parameters

Unit

Specifications

Working wavelength range

nm

C-band: 1529-1561

L-band: 1570-1604

Supervisory channel in C-band: 1500-1520

Supervisory channel in L-band: 1615-1635

Insertion loss

dB

IN→TC: ≤ 1.5

IN→TL: ≤ 1.5

RC→OUT: ≤ 1.5

RL→OUT: ≤ 1.5

IN→TM (@λM): < 2.0

IN→TMB(@λMB): < 2.0

RM→OUT(@λM): < 2.0

RMB→OUT(@λMB): < 2.0

Isolation

dB

IN to TM (@ λC): > 40

IN to TMB (@ λL): > 40

IN to TC (@ λL): > 35

IN to TC (@ λM): > 20

IN to TL (@ λC): > 40

IN to TL (@ λMB): > 12

Return loss

dB

> 40

Directivity

dB

> 55

Polarization dependent loss

dB

< 0.2

(PDL)

Note1: @ λMB, indicates the measured value of the 1625-nm optical supervisory signals.

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6 Technical Specifications

Table 6-61 Parameter specifications of FIU-03/06 (C+1510)

Parameters

Unit

Specifications

Working wavelength range

nm

C-band: 1529-1561

Supervisory channel in C-band: 1500-1520

Insertion loss

dB

IN→TC: ≤ 1.0

RC→OUT: ≤ 1.0

IN→TM (@λM): < 1.5

RM→OUT(@λM): < 1.5

Isolation

dB

IN to

TM (@ λC): > 40

IN to TC (@ λM): > 12

Return loss

dB

> 40

Directivity

dB

> 55

Polarization dependent loss

dB

< 0.2

(PDL)

Table 6-62 Parameter specifications of FIU-04 (L+1625)

Parameters

Unit

Specifications

Working wavelength range

nm

L-band: 1570-1604

Supervisory channel in L-band: 1615-1635

Insertion loss

dB

IN→TL: ≤ 1.0

RL→OUT: ≤ 1.0

IN→TMB (@λMB): < 1.5

RMB→OUT(@λMB): < 1.5

Isolation

dB

IN to

TMB (@ λL): > 40

IN to TL (@ λMB): > 12

Return loss

dB

> 40

Directivity

dB

> 55

Polarization dependent loss

dB

< 0.2

(PDL)

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6 Technical Specifications

6.10.2 ITL

The parameter specifications of the ITL provided by Huawei comply with related

ITU-T recommendations. Its parameter specifications are listed in Table 6-63.

Table 6-63 Parameter specifications of ITL

Parameters

Unit

Specifications

Working wavelength range

nm

C-band: 1529.16-1560.61

L-band: 1570.42-1603.57

Input channel spacing (Note1)

GHz

100

Output channel spacing (Note1)

GHz

50

Insertion loss

dB

< 3

Maximum channel insertion loss

dB

< 1

difference

Isolation

dB

> 25

Return loss

dB

> 40

Directivity

dB

> 55

Polarization mode dispersion (PMD)

ps

< 0.5

Polarization dependent loss (PDL)

dB

< 0.5

Input optical power range

dBm

≤ 24

Note1: Input and output are defined according to the multiplexing process of the ITL.

Instead of using an interleaver, a coupler can be used for multiplexing to achieve a

50-GHz channel spacing system.

6.10.3 OCP

Table 6-64 OCP board specifications

Item

Unit

Value

Range of wavelength

nm

1290~1330

1530~1565

Insertion loss (working channel)

dB

<4

Insertion loss (protection channel)

dB

<5.5

6-58