GB/T 16850.1-2022Optical amplifier test methods - Part 1: Power and gain parameters for single-channel optical amplifiers (English PDF)

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"

drafting.

This document is part 1 of GB/T 16850 "Test Methods for Optical Amplifiers". GB/T 16850 has issued the following parts.

--- Part 1.Single-channel optical amplifier power and gain parameters;

--- Part 3.Single-channel optical amplifier noise parameters;

--- Part 4.Test method for simulation parameter - gain slope;

--- Part 5.Test methods for reflection parameters;

--- Part 6.Test methods for pump leakage parameters;

--- Part 7.Test method for out-of-band insertion loss.

This document replaces GB/T 16850.1-1997 "Basic Specifications for Test Methods of Optical Fiber Amplifiers - Part 1.Test Methods for Gain Parameters"

"Method" and GB/T 16850.2-1999 "Basic Specifications for Test Methods of Optical Fiber Amplifiers Part 2.Test Methods for Power Parameters", this document

Integrates the duplicate content in the two parts of GB/T 16850.1-1997 and GB/T 16850.2-1999, merges them into one part, and

Compared with GB/T 16850.1-1997 and GB/T 16850.2-1999, except for editorial changes, the main technical changes are as follows.

---Changed the scope, this document only stipulates the measurement of single-channel optical amplifier gain and power, multi-channel optical amplifier gain and power parameters

The measurement of the number will be specified in Part 10 of GB/T 16850 "Test Methods for Optical Amplifiers"; the scope of application ranges from rare earth element doping

Active fiber optical amplifiers, extended to include Raman fiber amplifiers, semiconductor optical amplifier modules and doped waveguide optical amplifiers

Optical amplifiers including optical amplifiers (see Chapter 1, Chapter 1 of GB/T 16850.1-1997, Chapter 1 of GB/T 16850.2-1999);

--- Increased the terms and definitions of "gain bandwidth" (see 3.1);

--- Added a brief description of the power and gain parameter measurement methods in the overview (see 5.1);

--- Added the requirement that "the ratio of laser source power to total spontaneous emission should be greater than 30dB" for fixed wavelength and tunable light sources

(see 6.1);

---Delete the classification description of fixed light source and adjustable wavelength light source, and no longer specify the type of light source (see 6.1, GB/T 16850.1-

Introduction

The optical amplifier is the core component in the optical communication network. In order to standardize its test method, on the basis of referring to IEC 61290, successively formulate

And released 7 parts of GB/T 16850 "Basic Specifications for Test Methods of Optical Fiber Amplifiers". However, since the release of GB/T 16850, optical amplifiers

Significant changes have taken place in the product form and technical requirements of amplifiers, and the relevant IEC 61290 has also been revised several times, and multi-waveforms have been added.

Test methods for channel parameters, gain transient parameters and polarization mode dispersion parameters. As a basic standard for optical amplifiers, it is necessary to gradually develop

Revised to keep up with the trend of new technologies and industrial development, and keep pace with international standards.

The scope of application of the revised GB/T 16850 has been extended to rare earth element doped or Raman fiber amplifiers, semiconductor optical amplifiers

SOA modules and planar optical waveguide amplifiers break through the scope of application of optical fiber amplifiers limited by the original standard, so its subject name

Also changed from "Fiber Amplifier" to "Optical Amplifier". The main formulation and revision work of GB/T 16850 in the future is as follows.

a) Because the test methods for gain and power parameters are basically the same, GB/T 16850.2-1999 "Basic Rules for Test Methods of Optical Fiber Amplifiers"

Part 2.Test methods for power parameters" was merged into GB/T 16850.1;

b) GB/T 16850.1-1997 and GB/T 16850.3-1999 do not distinguish between single-channel optical amplifiers and multi-channel optical amplifiers, but

The test methods for power, gain and noise parameters of single-channel optical amplifiers are not fully applicable to multi-channel optical amplifiers, so this

In the revised version, Parts 1 and 3 are limited to test methods for single-channel optical amplifiers, and relevant parameters for multi-channel amplifiers

The test methods will be specified in Part 10;

c) It is expected to add gain transient parameters (Part 8), multi-channel parameters (Part 10) and polarization mode dispersion parameters (Part 11

points) test method.

According to the original standard structure of GB/T 16850 and the published standard of IEC 61290, GB/T 16850 "Test Methods for Optical Amplifiers" is proposed

Consists of the following parts.

--- Part 1.Single-channel optical amplifier power and gain parameters;

--- Part 3.Single-channel optical amplifier noise parameters;

--- Part 4.Analog parameters - gain slope;

--- Part 5.Reflection parameters;

--- Part 6.Pump leakage parameters;

--- Part 7.Out-of-band insertion loss parameters;

--- Part 8.Gain transient parameters;

--- Part 10.Multi-channel parameters;

--- Part 11.Polarization mode dispersion parameters.

Optical amplifier test method

Part 1.Power and gain parameters of single-channel optical amplifiers

1 Scope

This document describes methods for measuring the power and gain parameters of single-channel optical amplifiers with optical spectrum analyzers, electrical spectrum analyzers and optical power meters.

This document applies to single-channel optical amplifiers and optical amplifier subsystems, including optical fiber amplifiers based on rare earth element doping, Raman optical fibers

Measurement of power and gain parameters of amplifiers, semiconductor optical amplifiers and planar optical waveguide amplifiers.

Note. The measurement of the power and gain parameters of the distributed Raman amplifier needs to fully consider the loss of the fiber. For the specific method, refer to GB/T 20184.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references

For documents, only the version corresponding to the date applies to this document; for undated reference documents, the latest version (including all amendments)

apply to this document.

GB/T 15972.40 Specifications for test methods of optical fibers - Part 40.Measurement methods and test procedures for transmission characteristics and optical characteristics

Order---attenuation

GB/T 16849 General Specifications for Optical Fiber Amplifiers

3 Terms and Definitions

The following terms and definitions defined in GB/T 16849 apply to this document.

3.1

Gain bandwidth gainwavelengthband

Decrease the wavelength interval corresponding to the NdB gain downward from the maximum gain Gmax of the OA, as shown in Figure 1.

Note. The gain within the gain bandwidth is between the maximum gain Gmax and Gmax-NdB. Usually choose N=3, also called 3dB gain bandwidth at this time.

Figure 1 Typical variation characteristics of gain with wavelength