Agilent Technologies Agilent 8164A Guide de l'utilisateur Page 82
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Performance Tests Wavelength Accuracy
82 Agilent 81600B Tunable Laser Source Family, Fourth Edition
The mode-hop free tuning range is defined for the stepped mode. It is
automatically ensured by the wavelength regulation performed by the
TCFS, because the relative wavelength accuracy is better than half of a
mode-hop. The mode-hop free tuning range can be tested manually in the
same way as wavelength accuracy but with a higher wavelength
resolution, as described in the following test sequence. The test is
focussed to the beginning and the end of the tuning range where the
probability of possible mode-hops is much higher.
At the start of the test the TLS is set:
• To (a) its lowest specified wavelength, then
(b) 10 nm below its maximum specified wavelength,
• To the highest power the TLS can deliver over the 10 nm wavelength
range at the beginning and the end of the tuning range,
• Such that any modulation is off,
• To tune over 10 steps with 1 nm increments.
Test Procedure
This test procedure is applicable to the:
It measures mode-hop free tuning range of the module at the outputs
indicated.
Attenuate the Power Output from the TLS Reduce the output power
delivered by the TLS to a level compatible with the capabilities of the
wavelength meter.
Use the TLS module’s built-in attenuator, or an external attenuator.
NOTE
Agilent 81600B #200 (Output 2, High Power)
Agilent 81600B #160 (Output 2, High Power)
Agilent 81600B #150 (Output 2, High Power)
Agilent 81600B #140 (Output 2, High Power)
Agilent 81600B #142 #003
Agilent 81600B #142
Agilent 81600B #130 (Output 2, High Power)
Agilent 81600B #132
- Agilent 81600B 1
- User’s Guide 1
- In This Guide 4
- Table of Contents 5
- Specifications 33 6
- Performance Tests 71 7
- Index 269 8
- List of Figures 9
- Tunable Laser Source Family 11
- General Safety Considerations 12
- Line Power Requirements 13
- Operating Environment 13
- Initial Inspection 13
- Input/Output Signals 14
- Storage and Shipment 14
- Agilent 81600B family modules 15
- Laser Safety Labels 16
- What is a Tunable Laser? 17
- Front Panels 18
- Typical Use Models 19
- Optical Output 21
- Straight Contact 22
- Connector Symbol 22
- Angled Contact 22
- Signal Input and Output 23
- Accessories 25
- Laser Source Modules and 26
- Option 81600B-072 is highly 27
- Module Options 28
- User’s Guides 29
- Accessories Module Options 30
- Specifications 33
- Definition of Terms 35
- General Definitions 36
- (continuous sweep mode) 38
- Effective linewidth 38
- Linewidth 40
- Maximum output power 40
- Mode-hop free tunability 41
- Output isolation 41
- Polarization extinction ratio 42
- Power linearity 43
- Power repeatability 43
- Power stability 44
- Return loss 46
- Side-mode suppression ratio 46
- (SSE) ratio 46
- Wavelength range 48
- Wavelength resolution 49
- Wavelength stability 50
- Laser Source Module 51
- At constant temperature ±1 K 53
- Conditions 66
- Operating Modes: 68
- Coherence Control: 68
- Output Isolation (typ.): 69
- Return Loss (typ.): 69
- Specifications Conditions 70
- Performance Tests 71
- Required Test Equipment 73
- Test Failure 74
- Instrument Specification 74
- Performance Test Instructions 75
- General test Setup 75
- Environment 75
- Wavelength Tests 76
- Wavelength Accuracy 77
- Mode-Hop Free Tuning 81
- Power Tests 88
- Power Stability 107
- Measurement Principle 112
- ≅1407 nm 117
- Test Procedure 123
- Performance Tests Power Tests 130
- Optional Performance Tests 131
- Dynamic Wavelength Accuracy 135
- Analysis 142
- Normalized Sweep Acceleration 145
- Test Records 146
- Test Record 148
- Test Equipment Used 149
- ________nm 151
- Mode Hop Free Tuning 152
- Wavelength Repeatability 153
- Maximum Power Test 154
- Power Flatness 158
- Wavelength Deviation = Wave 179
- Upper Power Levels 212
- Power Linearity 237
- Safety Precautions 245
- Why is it important to clean 246
- What materials do I need for 247
- Cotton swabs 248
- Soft tissues 248
- Pipe cleaner 249
- Compressed air 249
- Additional Cleaning Equipment 250
- Premoistened cleaning wipes 251
- Polymer film 251
- Infrared Sensor Card 251
- Preserving Connectors 252
- Cleaning Instrument Housings 253
- General Cleaning Procedure 254
- Preferred Procedure 255
- Alternative Procedure 255
- Procedure for Stubborn Dirt 255
- An Alternative Procedure 255
- CAUTIONWARNING 261
- How to clean bare fiber ends 265
- Alternative Procedure A 267
- Alternative Procedure B 267
- Other Cleaning Hints 268
- Agilent Technologies 272
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