Thorlabs.com - 4-Channel Fiber-Coupled Laser Source
http://www.thorlabs.com/newgrouppage9_pf.cfm?guide=10&category_id=19&objectgroup_id=3800[2/12/2016 5:39:20 PM]
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Part Number
Description
Price
Availability
MCLS1
4-Channel Laser Source, TEC Stabilized, USB, Controller Only
$3,710.00
Lead Time
MCLS1-1310-15
1310 nm, 13.0 mW (Min), Fabry-Perot Laser Pigtail for MCLS1
$857.00
Lead Time
All beams should be terminated at the edge of the table, and laboratory doors
should be closed whenever a laser is in use.
Do not place laser beams at eye level.
Carry out experiments on an optical table such that all laser beams travel horizontally.
Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working near the beam path.
Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface.
Operate a laser at the minimum power necessary for any operation.
If possible, reduce the output power of a laser during alignment procedures.
Use beam shutters and filters to reduce the beam power.
Post appropriate warning signs or labels near laser setups or rooms.
Use laser sign lightboxes if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
Do not use Laser Viewing Cards in place of a proper Laser Barrier or Beam Trap.
Laser Classification
Lasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a
global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1
outlines the safety of laser products. A description of each class of laser is given below:
Class
Description
Warning
Label
1
This class of laser is safe under all conditions of normal use, including use with optical instruments for intrabeam viewing. Lasers in
this class do not emit radiation at levels that may cause injury during normal operation, and therefore the maximum permissible
exposure (MPE) cannot be exceeded. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is
not possible without opening or shutting down the laser.
1M
Class 1M lasers are safe except when used in conjunction with optical components such as telescopes and microscopes. Lasers
belonging to this class emit large-diameter or divergent beams, and the MPE cannot normally be exceeded unless focusing or
imaging optics are used to narrow the beam. However, if the beam is refocused, the hazard may be increased and the class may be
changed accordingly.
2
Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the
exposure in the eye to 0.25 seconds. This category only applies to visible radiation (400 - 700 nm).
2M
Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. This
laser class also applies to larger-diameter or diverging laser beams.
3R
Lasers in this class are considered safe as long as they are handled with restricted beam viewing. The MPE can be exceeded with
this class of laser, however, this presents a low risk level to injury. Visible, continuous-wave lasers are limited to 5 mW of output
power in this class.
3B
Class 3B lasers are hazardous to the eye if exposed directly. However, diffuse reflections are not harmful. Safe handling of devices in
this class includes wearing protective eyewear where direct viewing of the laser beam may occur. In addition, laser safety signs
lightboxes should be used with lasers that require a safety interlock so that the laser cannot be used without the safety light turning
on. Class-3B lasers must be equipped with a key switch and a safety interlock.
4
This class of laser may cause damage to the skin, and also to the eye, even from the viewing of diffuse reflections. These hazards
may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. Great care must be taken
when handling these lasers. They also represent a fire risk, because they may ignite combustible material. Class 4 lasers must be
equipped with a key switch and a safety interlock.
All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign
