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Summary of Contents for THORLABS HNL008R
- Page 1 HNL008R, HNL008L Red HeNe Laser System User Guide...
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Page 2: Table Of Contents
5.1. Technical Failures ......................15 5.2. Application Trouble Shooting ..................15 5.2.1. Noise, Oscillations, and Fluctuation Sources ..............16 Chapter 6 Specifications ........................17 Chapter 7 Mechanical Drawing ......................18 Chapter 8 Regulatory ...........................19 8.3. Compliance ........................20 Thorlabs Worldwide Contacts ..................21 Chapter 9... -
Page 3: Chapter 1 Safety
Safety Information 1.1.1. Safety Summary As defined by the Federal Register 21 CFR 1040.10 Laser Safety Standard, Thorlabs’ Helium Neon laser heads are classified according to output power and wavelength. In compliance with this standard, certain performance features and laser safety labels are provided on the product. - Page 4 HNL008R(L) Red HeNe Laser System Chapter 1: Safety Power Supply Line Power Requirements The unit can operate from any single-phase AC power source that supplies 120 (no dash), 230 (-EC), or 100 (-JP) VAC at a frequency range of 50 to 60 Hz. It draws 0.6 A maximum. The maximum power consumption is dependent on the configuration of each system.
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Page 5: Safety Instructions
Thorlabs’ assumes no liability for the customer’s failure to comply with any of these safety requirements. - Page 6 HNL008R(L) Red HeNe Laser System Chapter 1: Safety Warning To avoid the risk of injury or death, always observe the following precautions before initializing the unit: • Never look into the end of an optical cable connected to an optical output device that is operating. Laser radiation is invisible, and direct exposure can severely injure the human eye.
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Page 7: Chapter 2 Description
6 ft long, high-voltage cable for connecting to the power supply. This particular laser head is designed to operate at an optimum performance level when used with the required Thorlabs power supply. Manual Beam Shutter... -
Page 8: Hene Laser Overview
Transmission at Output Coupler (OC) HeNe lasers tend to be small, with cavity lengths of around 15 cm up to 0.5 m and optical output powers ranging from 1 mW to 100 mW. Thorlabs offers output powers up to 22.5 mW. 2.1.4. HeNe Linewidth A red HeNe laser wavelength is 632.816 nm in air, though it is often reported as either 632 nm or 633 nm. - Page 9 HNL008R(L) Red HeNe Laser System Chapter 2: Description Neon Gain Curve FWHM ~1.5 GHz Lasing Lasing Threshold Cavity Modes Frequency FSR ~1000 MHz FSR ~200 MHz Short (0.2 m) Laser Long (1 m) Laser Figure 2 HeNe Gain Curve Showing Cavity Modes The laser process in a HeNe laser starts with the collision of electrons from the electrical discharge with the helium atoms in the gas.
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Page 10: Hene Polarization
HNL008R(L) Red HeNe Laser System Chapter 2: Description The laser cavity can be designed with the correct mirrors and length to promote other wavelengths of laser emission. There are infrared transitions at 3.39 μm and 1.15 μm wavelengths, and a variety of visible transitions, including a green (543.365 nm, sometimes called GreeNe laser), a yellow (593.932 nm), a yellow-orange... -
Page 11: Chapter 3 Setup
Inspect the packing container for any damage that may have occurred during shipment. Contact your local Thorlabs customer service office for assistance. Packing materials are specifically designed to protect against shipping damage. Please keep this container and reuse it if your system needs to be returned to Thorlabs for service or evaluation. -
Page 12: Mounting The Laser Head
See the table below for the recommended number of mounting points. It is recommended to use V-block mounts (see figure to the right). Thorlabs offers fixed and kinematic mounts. Number of V-block Number of Ring... -
Page 13: Chapter 4 Operation
HNL008R(L) Red HeNe Laser System Chapter 4: Operation Chapter 4 Operation To operate the laser system, follow the following procedures: 1) Make sure that the laser is pointing safely away from people and is securely mounted and directed into a beam block, beam dump or similar nonreflective surface. -
Page 14: Maintenance And Service
Connector Power Cord Figure 6 Back of the Power Supply Module 4.1.3. Maintenance and Service The power supply power supply contains no user-serviceable parts. Return the power supply to Thorlabs for service. Page 14 22157-D02 Rev C, November 6, 2012... -
Page 15: Chapter 5 Troubleshooting
HNL008R(L) Red HeNe Laser System Chapter 5: Troubleshooting Chapter 5 Troubleshooting 5.1. Technical Failures Problem Make sure that the aperture is open. No light is being emanating from the laser. Check to make sure that • the Alden plug is firmly seated into the power supply (it may... -
Page 16: Noise, Oscillations, And Fluctuation Sources
HNL008R(L) Red HeNe Laser System Chapter 5: Troubleshooting 5.2.1. Noise, Oscillations, and Fluctuation Sources There are many sources of noise, oscillations and fluctuations of the output of a HeNe laser. One of the most common is from longitudinal modes drifting into and out of the gain curve. The frequency of these fluctuations vary from less than a Hz to as high as several kHz, depending on the stability of the environment. -
Page 17: Chapter 6 Specifications
HNL008R(L) Red HeNe Laser System Chapter 6: Specifications Chapter 6 Specifications Item # HNL008R HNL008L 632.8 nm Wavelength 0.8 mW Min Output Power (TEM , 633 nm) Random 500:1 Min Polarization Ratio 0.48 mm Beam Diameter (TEM , 1/e points + 3%) 1.7 mrad... -
Page 18: Chapter 7 Mechanical Drawing
HNL008R(L) Red HeNe Laser System Chapter 7: Mechanical Drawing Chapter 7 Mechanical Drawing Ø1.245" 6.905" (31.6 mm) (175.4 mm) Cable Length: 72" (Typical) 5.25" 5.10" (133.4 mm) (129.5 mm) 2.25" 2.38" (57.2 mm) 30.5 mm 1.20" (30.5 mm) Figure 7... -
Page 19: Chapter 8 Regulatory
Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. -
Page 20: Compliance
HNL008R(L) Red HeNe Laser System Chapter 8: Regulatory 8.3. Compliance FDA-CDRH Compliance Under the US FDA CDRH, the lasers conform to the Code of Federal Regulations (CFR), Title 21, Subchapter J, which pertains to laser safety and labeling. See www.fda.gov/cdrh/radhlth/cfr/21cfr1000-1050.pdf for more information. -
Page 21: Chapter 9 Thorlabs Worldwide Contacts
HNL008R(L) Red HeNe Laser System Chapter 9: Thorlabs Worldwide Contacts Chapter 9 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to- date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc. - Page 22 www.thorlabs.com...
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