ANRITSU CORPORATION MS9740B-009 Multimode Fiber Interface Instruction Manual

ANRITSU CORPORATION MS9740B-009 Multimode Fiber Interface

Product Information

Specifications

• Model: MS9740B-009
• Modified option of the MS9740B
• Supports both single mode (SM) and multimode (MM) fibers
• Dynamic range:
  • 42 dB (0.2 nm from peak wavelength)
  • 70 dB (1 nm from peak wavelength) in High Dynamic Mode
• High resolution: 0.03 nm (1550 nm band)

Product Usage Instructions

Fiber Compatibility

The MS9740B-009 supports the following optical fibers:

• Single-mode fiber (SM) with a core diameter of 5 to 9.5 µm
• Multimode fiber (GI) with a core diameter of 50 µm
• Multimode fiber (GI) with a core diameter of 62.5 µm

Setting Measurement Mode

To set the measurement mode based on the fiber used:

• For SM fiber:
  1. Press F1 Measure Mode
  2. Set f5 MM Mode to Off
• For GI fiber:
  1. Press F1 Measure Mode
  2. Set f5 MM Mode to On

Setting Resolution

To set the resolution:

1. Press f1 Res
2. Select the desired value from f1 to f7

Multimode Fiber Mode (MM Mode)
The MM Mode is not available in the MS9740B-009.

FAQ

Q: What fibers are compatible with the MS9740B-009?
A: The MS9740B-009 is compatible with single-mode fiber (SM) with a core diameter of 5 to 9.5 µm and multimode fiber (GI) with core diameters of 50 µm and 62.5 µm.

Q: What is the dynamic range of the MS9740B-009?
A: The dynamic range is 42 dB (0.2 nm from peak wavelength) and 70 dB (1 nm from peak wavelength) in High Dynamic Mode.

MS9740B-009
Multimode fiber interface
(50/62.5μm)
Operation Manual

Second Edition

• For safety and warning information, please read this manual before attempting to use the equipment.
• Additional safety and warning information is provided within the MS9740B Optical Spectrum Analyzer Operation Manual. Please also refer to it before using the equipment.
• Keep this manual with the equipment.

ANRITSU CORPORATION

MS9740B-009
Multimode fiber interface (50/62.5μm)
Operation Manual
9 April 2019 (First Edition)
21 April 2023 (Second Edition)
Copyright © 2019-2023, ANRITSU CORPORATION.
All rights reserved. No part of this manual may be reproduced without the prior written permission of the publisher.
The operational instructions of this manual may be changed without prior notice.
Printed in Japan

Manual Change

The MS9740B-009 is a modified option of the MS9740B. The following table shows the differences between the MS9740B-009 and the MS9740B.
Refer to the MS9740B Optical Spectrum Analyzer Operation Manual (W3998AE) for further information.

Manual Change from MS9740B Optical Spectrum Analyzer Operation Manual

●    Supports both single mode (SM) and multimode (MM) fibers (62.5/125 μm, 50/125 μm)
1.1.2| 1-4| ●    High wavelength accuracy of ±20 pm (WDM wavelength band, when MS9740B-002 Light Source for Wavelength Calibration is installed)| The NA of multimode fiber for 50/125 μm and 62.5/125 μm is 0.2 and 0.275, respectively.

However, the acceptable NA is 0.1 under the limitations of the spectroscope.

N/A

| | ●    Dynamic range of 42 dB (0.2 nm from peak wavelength) and 70 dB (1 nm from peak wavelength) (in High Dynamic Mode)| ●    60 dB (0.5 nm from peak wavelength) and 70 dB (1 nm from peak wavelength) (in High Dynamic Mode) dynamic range
| | ●    High resolution of 0.03 nm (1550 nm band)| N/A

2.1.1

| ****

2-2

| Table 2.1.1-2| (The following are added.) MS9740B-009

Multimode fiber interface (50/62.5μm)

|

2.7

| ****

2-14

| The following optical fibers can be used with MS9740B:

●      Single-mode fiber (SM) (core diameter of 5 to 9.5 μm)

●    Multimode fiber (GI) (core

diameter of 50 μm)

| The following optical fibers can be used with MS9740B:

●    Single-mode fiber (SM) (5

to 9.5 μm core diameter)

●       Multimode fiber (GI) (50

μm core diameter)

●    Multimode fiber (GI) (62.5

μm core diameter)

|
__

__

__

2.7

| __

__

__

2-14

| When using SM fiber, press F1 Measure Mode and set f5 MM Mode to Off.

When using GI fiber, press F1 Measure Mode and set f5 MM Mode to On.

The performance is limited as follows, depending on the fiber used.

| __

__

__

N/A

|
---|---|---|---|---
2.7| 2-14| (1) Limitations on wavelength resolution| N/A|
2.7| 2-17| Using Multimode (MM) fiber (50 µm core diameter)| N/A|
3.1.3| 3-9| 3.1.3 Calibrating Resolution| N/A|
__

3.5.2

| __

3-14

| 2. Enter the resolution using

f1 through f7.

| 2. Enter the resolution using

f1 through f5.

| 0.03 nm and

0.05 nm are not available.

__

4.3

| __

4-8

| To set resolution (Res):

1.  Press f1 Res.

2.  Select the value from f1 to f7.

| To set resolution (Res):

1.  Press f1 Res.

2.  Select the value from f1 to f5.

| 0.03 nm and

0.05 nm are not available.

__

4.7

| __

4-27

| The spectrum measurement modes are listed below.

●    Multi-mode fiber mode (MM Mode)

| __

N/A

| Multi-mode fiber mode is deleted.
__

4.7

| __

4-27

| Figure 4.7-1 Multi mode fiber

measurement indication

| __

N/A

| “MM Mode On” is not displayed.
__

4.7

| __

4-29

| To set Multimode Fiber Mode (MM mode)| __

N/A

| The operation of the MM mode is invalid.
__

4.7

| __

4-30

| __

To release MM Mode

| __

N/A

| The operation of the MM

mode is invalid.

A.1| A-1| Configuration

-Option-

MS9740B-001/101/201

GPIB Interface MS9740B-002/102/202

Light Source for Wavelength

Calibration

| Configuration

-Option-

MS9740B-001/101/201

GPIB Interface MS9740B-002/102/202

Light Source for Wavelength

Calibration MS9740B-009

Multimode fiber interface

(50/62.5μm)

|
---|---|---|---|---
A.1| A-2 to A-5| Optical characteristics| Change table in page 4 through 7|
A.2| A-8| | (The following are added.) W3995AE

MS9740B-009 Multimode fiber interface (50/62.5μm) Operation Manual (Manual Change)

| __

__

Printed, English

F.2| F-4| Table F.2-1| Change Table F.2-1 on page 8|
F.3| F-5| Table F.3-1, Table F.3-2| Change Table F.3-1 and Table F.3-2 on page 8|

Table A.1-2 Optical Characteristics*1 (MS9740B-009)

(62.5/125 µm) PC Connector

Reflection attenuation 40 dB or more for SM (ITU-T G.652) and GI

(50/125 µm)

Reflection attenuation 38 dB or more for GI (62.5/125 µm)

SM/GI fiber described below means this specified fiber.

Wavelength|
Wavelength range| 600 nm to 1750 nm
Wavelength sweep width| 0.2 nm to 1200 nm, 0 nm
Wavelength accuracy| Using SM fiber, GI fiber (50/125 µm or 62.5/125 µm) after Wl Cal (Ext) execution,

±300 pm          (600 to 1750nm)

When installing the light source for wavelength calibration (option): Using SM fiber after Wl Cal (Ref)

Resolution 0.07 nm to 0.2 nm:

±50.0 pm      (1530 to 1570 nm)

Resolution 0.5, 1.0 nm:

±100 pm       (1530 to 1570 nm)

Wavelength stability| ±5 pm or less

Using SM fiber with half-width of center wavelength and 11 pt smoothing during 1-minute period

Resolution|
Setting resolution| 0.07, 0.1, 0.2, 0.5, 1.0 nm

(RBW 3 dB optical filter: transmission bandwidth)

Resolution accuracy*2| Using SM fiber after Res-Cal at 633, 1310, and 1550 nm

±30%            (Resolution 0.1 nm)

±15%            (Resolution 0.2 nm)

±7%             (Resolution 0.5 nm)

1. After warming up for at least 2 hours after power-on (the Repeat sweeping performed at Span 100 nm or more and VBW 10 kHz or more during the warm-up operation) and performing automatic adjustment of optical axis, with wavelength calibration (hereafter, WI Cal), and constant temperature
2. Resolution accuracy in center wavelength for the actual resolution value displayed on the screen.
   Item| Specification
   ---|---
   Level|
   Measurement Level*3| When optical attenuation is Off: 5 to 30°C

–65 to +10 dBm     ( 600 to 1000 nm)

–85 to +10 dBm     (1000 to 1250 nm)

–90 to +10 dBm     (1250 to 1600 nm)

–75 to +10 dBm     (1600 to 1700 nm)

–55 to +10 dBm     (1700 to 1750 nm)

30 to 45°C

–60 to +10 dBm     ( 600 to 1000 nm)

–80 to +10 dBm     (1000 to 1250 nm)

–85 to +10 dBm     (1250 to 1600 nm)

–70 to +10 dBm     (1600 to 1700 nm)

–50 to +10 dBm     (1700 to 1750 nm) When optical attenuation is On:

5 to 30°C

–70 to +23 dBm     (1100 to 1600 nm)

30 to 45°C

–65 to +23 dBm     (1100 to 1600 nm)

Measurement level accuracy| ±0.6 dB

Wavelength: 1310 nm, 1550 nm, Input: –10 dBm, Resolution: 0.2 nm to

1.0 nm, using SM fiber, using Anritsu’s reference single mode fiber with FC/UPC connector, 23 ±5 °C

Measurement level stability| ±0.1 dB

During 1-minute period at resolution of 0.2 nm or more, with –23 dBm input, using SM fiber with wavelength of 1550 nm, no change in polarization

Level Linearity| When optical attenuation is Off:      ±0.1 dB

Using SM fiber with wavelength of 1550 nm at –50 to 0 dBm When optical attenuation = On:  ±0.1 dB

Using SM fiber with wavelength of 1550 nm at –30 to +20 dBm

3. VBW = 10 Hz, Sweep average = 10, Resolution = 0.07 nm or more (when using SM fiber)
   Item| Specification
   ---|---
   Level (Cont’d)|
   Dynamic range*4|
   High dynamic range mode| 70 dB

At ±1 nm from peak wavelength, 20 to 30°C 60 dB

At ±0.5 nm from peak wavelength, 20 to 30°C 65 dB

At ±1 nm from peak wavelength, 5 to 45°C 55 dB

At ±0.5 nm from peak wavelength, 5 to 45°C

Normal dynamic range mode| 62 dB

At ±1 nm from peak wavelength, 20 to 30°C 58 dB

At ±0.5 nm from peak wavelength, 20 to 30°C 57 dB

At ±1 nm from peak wavelength, 5 to 45°C 53 dB

At ±0.5 nm from peak wavelength, 5 to 45°C

Reflection attenuation| 32 dB

Using SM fiber with wavelength of 1310 and 1550 nm

SMSR reproducibility (Pulsed light measurement option

(020/320))

| ±1.8 dB5
4. With optical attenuator Off, at setting resolution of 0.07 nm and wavelength of 1550 nm and temperature of 20 to 30°C, excluding diffraction of other order of diffraction (when using SM fiber) 5. 10 dBm input at peak power, DFB-LD, Wavelength: 1550 nm, SMSR ≤ 45 dB, No fluctuations in polarization, Used fiber: SM, Pulse conditions: Repetition frequency ≥ 5 kHz and Duty ratio ≥ 1%, Pulse Mode: On, VBW=1 kHz, Resolution: 0.1 nm, Span ≤ 10 nm, Number of sampling points: 501, 23±5 °C
Item| Specification
---|---
Sweep time| 0.3 s or less /500 nm 6,*7 Center wavelength 1200 nm

0.2 s or less /5 nm 6,7

Center wavelength 1550 nm, resolution 0.1 nm

0.35 s /30 nm 8,9

Typical, center wavelength 1550 nm, resolution 0.1 nm

1.65 s /30 nm 9,10

Typical, center wavelength 1550 nm, resolution 0.1 nm

6. At VBW = 10 kHz, normal dynamic range mode, from sweep start to stop
7. No optical input, and 501 sampling points or under
8. At VBW = 1 kHz Fast, from sweep start to stop
9. With optical input (Tunable Laser Source, –10 dBm, one wavelength), and 1001 sampling points or under
10. At VBW = 200 Hz Fast, from sweep start to stop

Table F.2-1 Level Accuracy (When installing MS9740B-009)

Setting Resolution: nm

Light Source Wavelength| Power Meter Display Value| Measurement Value| Minimum value| Result| Maximum value
---|---|---|---|---|---
nm| dBm| dBm| –0.6 dB| dB| +0.6 dB
nm| dBm| dBm| –0.6 dB| dB| +0.6 dB

Table F.3-1 Normal Dynamic Range Mode (When installing MS9740B-009, 20 to 30ºC)

D Marker Setting Wavelength| ****

Measurement Value

| ****

Minimum Value

| ****

Result

| ****

Measurement Uncertainty

---|---|---|---|---
+0.5 nm| dB| 58 dB| dB| 1 dB
+1.0 nm| dB| 62 dB| dB| 1 dB
–0.5 nm| dB| 58 dB| dB| 1 dB
–1.0 nm| dB| 62 dB| dB| 1 dB

Table F.3-2 High Dynamic Range Mode (When installing MS9740B-009, 20 to 30ºC)

D Marker Setting Wavelength| ****

Measurement Value

| ****

Minimum Value

| ****

Result

| ****

Measurement Uncertainty

---|---|---|---|---
+0.5 nm| dB| 60 dB| dB| 1 dB
+1.0 nm| dB| 70 dB| dB| 1 dB
–0.5 nm| dB| 60 dB| dB| 1 dB
–1.0 nm| dB| 70 dB| dB| 1 dB

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