JIS-C-5933-1993-R2005-ENG.pdf
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1、J I S CX5933 93 4933608 0536880 535 UDC 621.31 6.545.09.001.4:666.189.21:666.192.22 J IS JAPANESE INDUSTRIAL STANDARD . 4 Test methods of optical isolators for fiber optic transmission JIS C 5 9 3 3 - 1 9 9 3 Translated and Published by Japanese Standards Association Printed in Japan 7 s Copyright J
2、apanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:47:56 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS Ca5933 93 4733608 05Lb88L 471 In thc cvcnt of any doubt arising,
3、the original Standard in Japancsc is to be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:47:56 MDTNo reproduction or networking permitted without license from IHS -,-,
4、- JIS Ca5933 93 = Y933608 0536882 308 UDC 621. 316. 545. 09. 001. 4: 666. 189. 21: 666. 192.22 JAPANESE INDUSTRIAL STANDARD Jrs Test methods of optical isolators C 5933-1993 for fiber optic transmission 1. Scope isolators for use in fiber optic transmission employing silica glass single-mode optical
5、 fibers (hereafter referred to as “optical isolators”). This Japanese Industrial Standard specifies test methods of optical I Remarks: The following Standards are cited in this Standard: JIS C O010 JIS C 0040 JIS C 0041 JIS C 5900 JIS C 5901 JIS C 5932 JIS Z 8120 Environmental testing Part 1: Genera
6、l and guidance Basic environmental testing procedures Part 2: Tests, Test Fc and guidance: Vibration (sinusoidal) Basic environmental testing procedures Part 2: Tests, Test Ea: Shock General rules of passive devices for fiber optic transmission Test methods of passive devices for fiber optic transmi
7、ssion General rules of optical isolators for fiber optic transmission Glossary of optical terms 2. Definitions tions specified in JIS C 5900, JIS C 5901, JIS C 5932 and JIS Z 8120, the following definitions shall apply: For the purpose of this Standard, in addition to the defini- (1) principal axis
8、direction The direction corresponding to two planes of polarization at right angles preserved in a polarization-maintaining optical fiber. Such a mode that the electromagnetic field is confined in the cladding and core due to existence of a layer with lower refractive index outside the cladding. An
9、optical element which can rotate the direction of polarization in the output linearly polarized light at least 180” relative to the incident linearly polarized light. (2) cladding mode e (3) polarization rotator 6 3. Test conditions 3.1 Standard conditions Unless otherwise specified, the tests and m
10、easure- ments shall be carried out under the conditions specified in 5.3 of JIS C O010 (temperature 15C to 35OC, relative humidity 25 % to 75 % and air pressure 86 kPa to 106 kPa). If any doubt arises on the decision based on the measured values under the standard conditions or the test conditions a
11、re especially re- quested, the test shall be carried out under the conditions of 3.3 or under the requested conditions. The reference conditions when the conversion is individually specified shall be a as stated in 3.2. Copyright Japanese Standards Association Provided by IHS under license with JSAL
12、icensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:47:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 C 5933-1993 If it is difficult to carry out the measurements under the standard conditions, the test and measurements may be carried out
13、 under the conditions other than the standard conditions unless any doubt arises on the decision. because the performances changes with the temperature. The temperature in the test conditions shall be clearly stated in the test report 3.2 Reference conditions The reference conditions shall be the co
14、nditions specified in 5.1 of JIS C O010 (temperature 20C and air pressure 101.3 kPa). However, only the temperature may be employed as the reference condition. 3.3 Referee conditions table of 5.2 of JIS C O010 (temperature 20 I 2“C, relative humidity 60 % to The referee conditions shall be the condi
15、tions in the 70 % and air pressure 86 kPa to 106 kPa). 3.4 Conditions of test place The test place shall be sufficiently cleaned so that the place is free from dirt and dust. Further, sufficient protective means shall be provided to avoid influence of external magnetic field due to external magnetic
16、 substance on the measurements. 4, Test apparatus and equipment Remarks: The joint between the test apparatus and test equipment shall be brought to non reflective state by means of matching oil or the like. 4.1 Light source stabilized output shall be employed as the light source. Unless otherwise s
17、pecified, the laser stated below with The output light is a linearly polarized light. Its full width half maximum (FWHM) spectral linewidth is so small as not to affect the measurement. Its output optical power does not exceed the maximum incident optical power of the optical isolator under test (sp
18、ecimen). linewidth shall be clearly stated in the test report. The light source shall be stable in its central wavelength, FWHM spectral linewidth and output optical power over a time period sufficiently longer than the duration of measurement. The kind of light source, the central wavelength and th
19、e FWHM spectral Optical power meter Unless otherwise specified, an optical power meter with a linearity error not exceeding f 0.2 dB in the measuring range shall be used. If another meter is used, the accuracy shall be clearly stated in the test report. The light detector element shall have polariza
20、tion independence over all the light receiving plane, shall have uniform sensitivity distribution, and its effective diameter of sensitive area is sufficiently large as compared with the distribution of incident light at the light receiving plane. Copyright Japanese Standards Association Provided by
21、 IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:47:56 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S CX5933 93 = 4933608 05Lb884 180 = 3 C 5933-1993 4.3 Measuring optical fiber Optical fibers which satisfy
22、 the requirements given below shall be used as the measuring optical fiber. (1) (2) Its cladding mode can be sufficiently stripped. The length of fiber shall be such that the optical loss of the measuring optical fiber itself is negligible as compared with the optical loss of the optical isolator un
23、der test. The output light shall be linearly polarized one when a linearly polarized light is launched into the fiber. (3) The parameters which specify the structure of measuring optical fiber shall be clearly stated in the test report. 5. Appearance and marking tests 5.1 Appearance The appearance t
24、est shall be made by visual check. 5.2 Marking The marking test shall be carried out by visual check. 6. ODtical Derformance test 6.1 Insertion loss 6.1.1 Equipment The equipment shall be as follows: (1) Light source As specified in 4.1. (2) Optical power meter As specified in 4.2. (3) Measuring opt
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- JIS 5933 1993 R2005 ENG
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