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SP-1550M Camera
User Guide
For Model
SP-1550M Phosphor Coated CCD Camera
For Use with the LBA-PC
Laser Beam Propagation
Analyzer
Camera Version 2.0
For Sales, Service or
Technical Support
Phone: (435) 753-3729
Fax: (435) 753-5231
Service Email
service@ophir-spiricon.com
Sales Email
sales@ophir-spiricon.com
Ophir-Spiricon Inc.
60 W 1000 N
Logan, Utah 84321
© 2008 Ophir- Spiricon Inc.
Document No. 10998 Rev C
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Summary of Contents for Ophir-Spiricon SP-1550M
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Page 1: User Guide
SP-1550M Camera User Guide For Model SP-1550M Phosphor Coated CCD Camera For Use with the LBA-PC Laser Beam Propagation Analyzer Camera Version 2.0 For Sales, Service or Technical Support Phone: (435) 753-3729 Fax: (435) 753-5231 Service Email service@ophir-spiricon.com Sales Email sales@ophir-spiricon.com... -
Page 3: Notice
All rights to the product and any accompanying user guide(s) are reserved by Spiricon, Inc. Ophir-Spiricon Inc. reserves the right to make improvements to the product described in this user guide at any time and without prior notice. While every precaution has been taken in the preparation of this guide, the publisher and author assume no responsibility for errors, omissions, or any loss of data because of said errors or omissions. -
Page 5: Table Of Contents
Non-linearity Affects Laser Beam Measurements .......... 14 Non-linearity Correction Effect on Noise............16 1.10 Beam Width Accuracy vs. Intensity ............. 17 1.11 Wavelength Response ................18 1.12 Camera Switch Settings ................19 1.13 Common Accessories.................. 20 SP-1550M User Guide Document No: 10998 Page 5... -
Page 6: Table Of Figures
Figure 4 – Non-linearity of SP-1550M Camera............12 Figure 5 – Linearity of SP-1550M with Correction............13 Figure 6 – Measured Beam Width of SP-1550M With and Without Correction....14 Figure 7 – Fiber Output With Camera Correction............15 Figure 8 – Fiber Output Without Camera Correction ........... 15 Table 1 –... -
Page 7: Safety
When working with an unenclosed beam path, it is advisable to do so while the laser is powered down or at reduced power levels. Whenever there is a risk for dangerous exposure, protective eye shields and clothing should be worn. SP-1550M User Guide Document No: 10998 Page 7... -
Page 8: Specifications
-10°C to +40°C Storage Humidity Less than 95% RH (without condensation) Storage Temperature -30°C to +70°C Dimensions 35.5 x 40 x 63 (mm) Weight 98 g Specifications subject to change without notice. Page 8 Document No: 10998 SP-1550M User Guide... -
Page 9: Physical Dimensions
Physical Dimensions Figure 1 – Profile Dimensions Figure 2 – Bottom and Face Dimensions SP-1550M User Guide Document No: 10998 Page 9... -
Page 10: Parts Description
Parts Description Figure 3 – SP-1550M Parts Description 1. Phosphor coated CCD front face 8. Video Out (BNC) CAUTION: Windowless detector Composite video signal output 2. Lens mount 9. Gamma correction switch CS mount Three selectable values: 1.0, 0.45, and .35 3. -
Page 11: General Information
General Information The Spiricon SP-1550M IR camera consists of a CCD focal plane array coated with a phosphor that emits visible radiation when illuminated with infrared radiation in the 1460 nm to 1625 nm wavelength range. The camera is thus modified for use when viewing IR emitting telecom devices and IR lasers in the above spectral range. -
Page 12: Camera Non-Linearity
Camera Non-linearity The response of the phosphor on the SP-1550M camera to infrared radiation is not linear with respect to intensity. Because the generation of visible photons is essentially a two-photon for one-photon process, the probability of the interaction occurring increases roughly as the square of the input IR intensity. -
Page 13: Non-Linear Correction
A linear line starting at saturation, the linear corrected response, and the uncorrected non-linear response are plotted together. Figure 5 – Linearity of SP-1550M with Correction SP-1550M User Guide Document No: 10998... -
Page 14: Non-Linearity Affects Laser Beam Measurements
However, Spiricon’s correction algorithm enables the Laser Beam Analyzer to measure the correct width. This has been verified with correlation to other IR cameras with linear response. Figure 6 – Measured Beam Width of SP-1550M With and Without Correction Page 14 Document No: 10998... -
Page 15: Figure 7 - Fiber Output With Camera Correction
Figure 6. As seen below, the beam without the correction algorithm appears much smaller than actual. Figure 7 – Fiber Output With Camera Correction Figure 8 – Fiber Output Without Camera Correction SP-1550M User Guide Document No: 10998 Page 15... -
Page 16: Non-Linearity Correction Effect On Noise
Non-linearity Correction Effect on Noise The non-linearity of the SP-1550M camera can be understood by observing that whenever the input radiation is reduced by one-half, the camera output signal is reduced by a factor of 4. Thus, the correction algorithm will increase the gain of the signals at low levels. -
Page 17: Beam Width Accuracy Vs. Intensity
50% of the camera dynamic range keeps this effect to a minimum. Figure 9 – SP-1550M Beam Width Error vs. Percent Peak Intensity Note that width calculations fall off rapidly below 25% of peak fluence. -
Page 18: Wavelength Response
Figure 10 – Signal Required vs. Wavelength to Achieve Camera Full Signal Illumination by Anti-Stokes Up Conversion Material Page 18 Document No: 10998 SP-1550M User Guide... -
Page 19: Camera Switch Settings
8 valid positions. Table 3 – Electronic Shutter Settings Shutter Speeds (Sec) Mode NTSC 1/100 1/120 1/250 1/500 1/1000 1/2000 1/5000 1/10,000 1/100,000 EI: OFF DO NOT USE EI: FL DO NOT USE SP-1550M User Guide Document No: 10998 Page 19... -
Page 20: Common Accessories
Two convenient accessories are often used with the SP-1550M camera: SP-1550M Silicon Window Kit, which consists of a silicon window, AR coated for 1 μm to 2.5 μm, for blocking ambient visible room light from the detector. It screws into the CS mount on the camera housing.
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