DD IEC/PAS 61280-2-10:2003
Current
The latest, up-to-date edition.
Fibre optic communication subsystem test procedures. Digital systems Time-resolved chirp and alpha-factor measurement of laser transmitters
Hardcopy , PDF
English
28-02-2003
FOREWORD
1 Scope
2 Background
3 Definition of time-resolved chirp
4 Modeling transmitter behaviour
5 Overview of chirp measurement methods
6 Frequency discriminator method
6.1 Apparatus
6.1.1 Pattern Generator
6.1.2 EDFA
6.1.3 Polarization controller
6.1.4 Interferometer
6.1.5 Optical oscilloscope
6.2 Procedure
7 Monochromator method
7.1 Apparatus
7.1.1 Pattern Generator
7.1.2 EDFA
7.1.3 Monochromator
7.1.4 Optical oscilloscope
7.2 Procedure
8 Alpha-factor calculations
8.1 Alpha factor vs. time, alpha(t)
8.2 Average alpha factor, alpha[avg]
8.3 Alpha factor vs. power, alpha(P)
9 Documentation
10 Abbreviations
Annex A Verification of TRC setup and calculations
Annex B Optical transmitter modulation methods
B.1 Directly modulated laser
B.2 Electro-absorption modulator
B.3 Mach-Zehnder modulator
BIBLIOGRAPHY
Describes standard procedures for measuring time-resolved chirp on laser transmitters. Also specifies means to verify the TRC setups and calculations and a review of laser modulation methods and the relationship of TRC to performance in a transmission system.
| Committee |
GEL/86/3
|
| DevelopmentNote |
Supersedes 02/208363 DC (03/2003)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
Provides procedures for measuring time-resolved chirp on laser transmitters. The calculation of alpha-factor, a measure of transient chirp, is derived from the measured TRC data. A means to verify the TRC setups and calculations and a review of laser modulation methods and the relationship of TRC to performance in a transmission system are also coverd.
| Standards | Relationship |
| IEC PAS 61280-2-10:2003 | Identical |
| IEC TR 61282-8:2006 | Fibre optic communication system design guides - Part 8: Calculating dispersion penalty from measured time-resolved chirp data |
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