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YD/T 1117-2001 English PDF (YDT1117-2001)

YD/T 1117-2001 English PDF (YDT1117-2001)

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YD/T 1117-2001: Specification of all Optical Fiber Branching Devices

This standard specifies the technical requirements, test methods, quality assessment procedures and marking, packaging, storage and other conditions of the optical fiber broadband coupler and optical fiber wavelength division multiplexing coupler series products of all optical fiber branching devices. This standard is applicable to the design, production, inspection and use of single-mode optical fiber broadband coupler AND the optical fiber wavelength division multiplexing coupler.
YD/T 1117-2001
YD
COMMUNICATION INDUSTRIAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
M 33
Specification of all optical fiber branching devices
ISSUED ON. APRIL 24, 2001
IMPLEMENTED ON. JULY 01, 2001
Issued by. Ministry of Information Industry of PRC
3. No action is required - Full-copy of this standard will be automatically and immediately delivered to your EMAIL address in 0~60 minutes.
Table of contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Definition ... 5
4 Optical fiber branching device description ... 9
5 Technical requirements ... 10
6 Measurement method ... 12
7 Environmental and mechanical performance tests ... 15
8 Quality assessment procedures ... 22
9 Inspection ... 27
10 Packaging, marking, transportation and storage ... 28
Foreword
This standard refers to the relevant chapters of GB/T 13713-92 ?€?Optic
branching devices - Part 1. Generic specification?€?, IEC875-2 (1992) ?€?Optical fiber branching devices - Part 2. Non-wavelength selective branching device specification?€?, IEC 875-3 (1992) ?€?Optical fiber branching devices - Part 3. Wavelength selective branching device specification?€?, (TC86B/1246/CD) IEC 61753-2-3 ?€?Performance specifications - Part 2-3. Non-connectorised single mode 1 x N and 2 x N non-wavelength-selective branching devices for
category U ?€? Uncontrolled environment?€?, and Bellcore GR-1209-CORE (1998) ?€?General technical specifications for optical fiber branching device?€?, AND in accordance with the actual conditions of China, combine the wavelength
selection and non-wavelength selection all optical fiber branching devices together.
This standard was proposed by AND shall be under the jurisdiction of the Ministry of Information Industry Telecommunications Research Institute. This standard was drafted by Wuhan Institute of Posts and
Telecommunications Science.
The main drafters of this standard. Liang Chenhuan, Wang Qinglin.
COMMUNICATION INDUSTRIAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Specification of all optical fiber branching devices
1 Scope
This standard specifies the technical requirements, test methods, quality assessment procedures and marking, packaging, storage and other conditions of the ?€?optical fiber broadband coupler?€? and ?€?optical fiber wavelength division multiplexing coupler?€? series products of all optical fiber branching devices. This standard is applicable to the design, production, inspection and use of single-mode optical fiber broadband coupler AND the optical fiber wavelength division multiplexing coupler.
2 Normative references
The following standards contain provisions which, by reference in this standard, constitute provisions of this standard. At the time of publication, the versions shown are valid. All standards will be revised and the parties using this standard shall explore the possibility of using the latest version of the following standards.
GB 2828-1987 Counting and sampling procedures and sampling tables for
batch-by-batch inspection (for continuous batch inspection)
GB 2421-1989 Test specification for the basic environment of electric and electronic products ?€? General principles
YD/T 826-1996 Technical requirements for FC-PC single-mode optical fiber cable connectors
YD/T 893- 1997 Technical requirements for optical fiber couplers
YD/T 895-1997 Technical requirements for SC/PC single-mode optical fiber connectors
YD/T 964-1998 Technical requirements and test methods for
1310nm/1550nm wavelength division multiplexers
IEC 61300-3-2 (1999) Optical fiber interconnecting devices and passive
components - Basic test and measurement procedures ?€? Part 3-2.
Inspection and Measurement - Polarization dependent loss of single-mode optical fiber devices
3 Definition
This standard adopts the following definitions.
3.1 Port
An optical signal input or output port belonging to an optical passive device. 3.2 Optical fiber branching devices
It refers to the optical passive device which is used to realize the optical signal coupling and re-distribution between two or more optical fibers.
3.3 Optical fiber coupler
It is also known as ?€?non-wavelength selective optical branching device?€?, which is an optical fiber device used to realize the power coupling and re-distribution functions of the optical signal of certain band.
3.4 Optical fiber wavelength division multiplexing coupler
It is also known as ?€?wavelength selective optical branching device?€?, which is used to realize the multiplexing and demultiplexing function of two optical signals of different wavelengths.
3.5 Working bandwidth
It refers to the optical wavelength range to which the optical performance indicators of the devices as specified in this standard are applicable, expressed in nm.
3.6 Optical fiber standard coupler
It refers to the optical fiber coupler for which the working bandwidth ??? ?€?nominal center wavelength ?? 20nm?€?.
3.7 Optical fiber broadband coupler
It refers to the optical fiber coupler for which the working bandwidth ??? ?€?nominal center wavelength ?? 40nm?€?.
3.8 Optical fiber single window broadband coupler
It refers to, under a single optical communication window (such as 1310nm or 1550nm), the optical fiber coupler complying with the requirements that the working bandwidth ??? ?€?nominal center wavelength ?? 40nm?€?.
3.9 Optical fiber dual window broadband coupler
It is the measurement of the input optical power as caused by the optical fiber branching device which is returned along the input path. It is expressed in decibels (dB) AND calculated in accordance with the formula (8).
Where.
Pj - The optical power incident on the input end, in mW;
Pr ?€? The returned optical power as received at the same input end, in mW. 4 Optical fiber branching device description
4.1 Optical fiber broadband coupler
4.1.1 Classification
- It is divided into single window broadband coupler and the dual window broadband coupler based on the working window which is covered by the
device performance;
- It is divided into tree broadband coupler (1 ?? N) and star broadband
coupler (N ?? N) based on the device working state;
- It is divided into the pigtail type and connector type based on the
configuration of the device leading out port.
4.1.2 Optical fiber for optical fiber broadband couplers
The optical fiber used is generally single-mode optical fiber.
4.2 Optical fiber wavelength division multiplexing coupler
4.2.1 Classification
Fused tapered optical fiber wavelength division multiplexers are typically two wavelength multiplexing/demultiplexing devices.
It is generally divided into the following types in accordance with the differences of the multiplexing wavelength.
a) 1310nm / 1550nm wavelength division multiplexing coupler;
b) 1480nm / 1550nm wavelength division multiplexing coupler;
c) 980nm / 1550nm wavelength division multiplexing coupler;
d) 980nm / 1310nm wavelength division multiplexing coupler.
- 30 dB spectral width. ??? 5 nm (A = 1310 nm), 10 nm (?? = 1550 nm)
- Power stability. better than ?? 0.05 dB (- 10 ??C ~ +50 ??C, 1 h)
6.3.2 Mode disturbance unit (E)
The mode disturbance unit used is a 1 km length single-mode fiber, or a 5 m single-mode fiber in the middle of which two in the middle of playing two ?? 30 mm circles are made, AND the fiber parameters shall comply with the
provisions of YD/T 895.
6.3.3 Detection unit (D)
It uses the optical power meter, AND its performance indicators must comply with the following requirements.
- Wavelength. 0.75 ~ 1.7 ??m;
- Absolute measurement accuracy (-23 dBm). ?? 5%
- Dynamic range. - 80 ~ 0 dBm
- Linearity. Better than ?? 0.05 dB
6.3.4 Spectrum analyzer (OSA)
The resolution of the spectrum analyzer shall be higher than the spectral width of the measuring light source.
6.3.5 Optical fiber standard connector (SR)
It shall comply with the requirements of clause 3.14 of this standard.
6.3.6 Temporary joints (TJ)
MAKE butt joint of the two ends of the optical fibers, the joint loss is < 0.1 dB, ND it is good in stability.
6.3.7 Device leading out fiber length (cable) length
The length of the device leading out fiber (cable) shall not be less than 1 m. 6.4 Measurement of excess loss (cutting method)
It shall be in accordance with clause 6.4 of YD/T 893-1997.
6.5 Measurement of insertion loss
It shall be in accordance with clause 6.4 in YD/T 893-1997 and clause 6.4 in YD/T 964-1998.
6.6 Directionality measurement
6) From the spectral region, RECORD the sample insertion loss and the
isolation change; from the device indicator range as specified in Table 1 to Table 4, READ the maximum and the minimum wavelength value, AND
the difference between the two is the working bandwidth of the device.
6.9 Measurement of polarization dependent losses
PERFORM measurement in accordance with the method A of IEC 61300-3-2
(1999).
6.10 Measurement of wavele...

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