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PD IEC/TR 62627-08:2016 Fibre optic interconnecting devices and passive components - Study of optical power blocking measurement methods for adaptors with an optical power blocking shutter, 2016
- 30318610-VOR.pdf [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Background to the measurement method of blocking characteristics for adaptors with an optical power blocking shutter [Go to Page]
- 4.1 Laser safety requirement for optical fibre communication systems
- 4.2 Required performance of the power blocking shutter
- 4.3 Standard measurement conditions used to determine laser safety for optical fibre communication systems
- 5 Measurement methods used in this Technical Report [Go to Page]
- 5.1 Background
- 5.2 Test [Go to Page]
- 5.2.1 Measurement set-up
- 5.2.2 Study of dynamic range
- 5.2.3 Light source and optical detector
- 5.2.4 Measurement environment
- 5.3 Measurement of the maximum emitted optical power
- 5.4 Measuring system dynamic range
- 5.5 Measuring the level of optical power blocking
- 6 Demonstration of measurement [Go to Page]
- 6.1 Common measurement conditions
- 6.2 Measurement set-up [Go to Page]
- 6.2.1 Method 1
- 6.2.2 Method 2
- 6.3 Dynamic range [Go to Page]
- 6.3.1 Method 1
- 6.3.2 Method 2
- 6.3.3 Samples measured
- 6.4 Measurement results
- 6.5 Study of the factors affecting measurement uncertainty
- 7 Summary
- Annex A (informative) Observation of emitted light using a visible light source
- Annex B (informative) Detailed measured levels of blocking characteristics (Measured values of light quantity shielded by adaptors with an optical power blocking shutter)
- Bibliography
- Figures [Go to Page]
- Figure 1 – Example of measurement set-up for Method 1
- Figure 2 – Example of measurement set-up for Method 2
- Figure 3 – Measurement set-up, Method 1
- Figure 4 – Measurement set-up, Method 2
- Figure 5 – Comparison between average of optical power blocking and the standard deviations (Type SC, wavelength of 1 310 nm)
- Figure 6 – Comparison between average of optical power blocking and the standard deviations (Type SC, wavelength of 1 550 nm)
- Figure 7 – Comparison between average of optical power blocking and the standard deviations (Type LC, wavelength of 1 310 nm)
- Figure 8 – Comparison between average of optical power blocking and the standard deviations (Type LC, wavelength of 1 550 nm)
- Figure A.1 – Example of off-axis emitted visible light (Type LC duplex adaptor with an optical power blocking shutter)
- Tables [Go to Page]
- Table 1 – Common measurement conditions
- Table 2 – Details of apparatus used for Method 1
- Table 3 – Details of apparatus used for Method 2
- Table 4 – Adaptors with an optical power blocking shutter
- Table B.1 – Measured values of optical power blocking(Type SC, measured wavelength of 1 310 nm)
- Table B.2 – Measured values of optical power blocking (Type SC, measured wavelength of 1 550 nm)
- Table B.3 – Measured values of optical power blocking (Type LC, measured wavelength of 1 310 nm) for non-angled PC end face
- Table B.4 – Measured values of optical power blocking (Type LC, measured wavelength of 1 310 nm) for 8 degree-angled PC end face
- Table B.5 – Measured values of optical power blocking (Type LC, measured wavelength of 1 550 nm) for non-angled PC end face
- Table B.6 – Measured values of optical power blocking (Type LC, measured wavelength of 1 550 nm) for 8 degree-angled PC end face [Go to Page]