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PRO8000 Preconfigured WDM System 

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PRO8000 Preconfigured WDM System 


  • Preconfigured System Includes Chasis/Controller and 8 Customer-Chosen DWDM Laser Modules
  • Center Wavelengths in C and L Bands on 100 GHz ITU Grid
  • 20 mW Output Power
  • Precise Wavelength Calibration and Control
  • Instrument Drivers for LabVIEW & LabWindows/CVI

Preconfigured DWDM System
The DWDM820 package is a preconfigured 8-Channel DWDM DFB laser source consisting of 8 DWDM modules with individually selectable center wavelengths from the C- and L-Bands (ITU Grid). Other wavelengths are available upon request. It serves as a multi-wavelength test system populated with DWDM laser modules. This system is ideal for both active and passive DWDM component testing and multi-wavelength transmission experiments.

The modular design of the PRO8000 chassis holds up to 8 included WDM laser sources, chosen by the customer when ordering. We offer all ITU wavelengths in the 100 GHz spacing across the C- and L-bands, with 20 mW of output power. The functionality of these turn-key WDM laser systems is evident in the precise tunability, long-term wavelength and power stability, and the adjustable coherence control of the DFB lasers.

Precise Wavelength Calibration and Control
All the PRO8000 modules utilize telecom rated laser diodes housed in butterfly packages. Each laser contains an integrated TEC and an optical isolator to ensure long term stability of the laser. Using the front panel controls of the PRO8000, the wavelength of each laser source module can be tuned by ±0.85 nm (approximately ±100 GHz) while retaining strict control of the output power. This is accomplished through the use of a comprehensive factory calibration (wavelength dependence on both the temperature and the drive current) of each laser module.

The DWDM laser modules are also sold separately. For detailed information, see our PRO8 WDM DFB Laser Diode Modules. For more information about the PRO8 platform chasis, please see our PRO8 Platform Presentation.

Wavelength Selection Information
Once an order has been placed for the DWDM820 System, Tech Support will be in contact regarding wavelength selection.

Laser Specifications
Wavelength100 Wavelengths Available within 100 GHz ITU Grid in C and L-Banda
Tuning Range± 0.85 nm
Accuracy0.025 nm, typically < 0.01 nm
Stability (Typical)< 0.002 nm over 24 hours
Wavelength Resolution1 pm
Laser Linewidth<10 MHz
Output Power20 mW
Stability<0.002 dB over 15 sec.
<0.005 dB over 15 min.
<0.01 dB over 24 hrs.
Attenuation Range> 6 dB; 10 dB typical (continuously variable)
Output Power Resolution0.01 dB
Single Mode Suppression Ratio> 40 dB typ. (> 36 dB min.) at max. power
Relative Intensity Noise (RIN)- 145 dB/Hz (typ.)
Optical Isolation>35 dB
Coherence Control (Standard Feature, All Models)
LinewidthUp to 1 GHz (Adjustable)
ShapeNoise, Sine, & Square (Triangle upon request)
Frequency0.02 to up to 50 kHz
Modulation Depth0.1 to 100%
Modulation Synchronous TTLDC-10 kHz (all lasers within mainframe simultaneously via common BNC input)
Analog LF ModulationDC-50 kHz (option)
General Data
Optical OutputFC/APCb
Operating Temperture0 to 35 oC, non condensing
Storage Temperature-40 to 60 oC
Warm-up Time15 min for Rated Accuracy
Laser Module Width1 slot

a Subject to DFB laser diode availability, 25 GHz and 50 GHz grid on request
b Other connector styles (SC, E2000...) and non-angled (PC) ferrule on request
c Connector key aligned to slow axis upon request
(All technical data is valid at 23 ± 5 °C and 45 ±15% rel. humidity)

Item #PRO8000
Number of Slots8
Mains SwitchKey-Operated
Remote ControlVia IEEE488.2 and RS232C
Mains Supply100 V, 115 V, 230 V (±10%)
Fixed (50 to 60 Hz)
Maximum Power Consumption500 VA
Supply Mains OvervoltageCategory II
Operating Temperature*0-40 °C
Storage Temperature-40 to 70 °C
Relative HumidityMax. 80% up to 31 °C, Decreasing to 50% at 40 °C
Pollution Degree (Indoor Use Only)2
Operation Altitude<2000 m
Maximum Output Current per Slot4 A
Maximum Output Current for all Slots16 A
Warm-Up Time for Maximum Accuracy10 min
Dimensions (W × H × D)449 × 147 × 396 mm3
(3 U, 19")
Maximum Weight<17 kg
Display and Operating Elements
Display4 × 20 Characters Alphanumeric Vacuum-Fluorescence-Display
User InterfaceInteractive Menus
Keypad7 Micro-Switch Keys
Main Tuning KnobRotation Encoder
Acoustic MessagesInternal Beeper: Short Tone As Confirmation, Long Tone As Warning
Connectors on the Rear Panel
Ground4 mm Banana Jack
Line3-Pin IEC 320 with Fuse
Remote ControlIEEE488 (24-Pin.) Jack or RS-232C (9-Pin) D-Sub Jack
Auxiliary Jack9-Pin D-Sub (for Extensions)
Trig In (max. 5V, TTL)BNC
Trig Out (max. 5V, TTL)BNC

(All technical data is valid at 23 ± 5 °C and 45 ±15% relative humidity)

RF Modulation

SMA Female

SMA Female

50 Ω, 100 kHz - 0.5 GHz,

Laser Safety and Classification

Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina. 

Alignment Tools
Laser Barriers
Enclosure Systems
Blackout Materials
Laser Glasses
Laser Viewing Cards
Laser Safety Signs
Shutter and Controllers

Safe Practices and Light Safety Accessories

  • Thorlabs recommends the use of safety eyewear whenever working with laser beams with non-negligible powers (i.e., > Class 1) since metallic tools such as screwdrivers can accidentally redirect a beam.
  • Laser goggles designed for specific wavelengths should be clearly available near laser setups to protect the wearer from unintentional laser reflections.
  • Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range.
  • Laser Barriers and Blackout Materials can prevent direct or reflected light from leaving the experimental setup area.
  • Thorlabs' Enclosure Systems can be used to contain optical setups to isolate or minimize laser hazards.
  • A fiber-pigtailed laser should always be turned off before connecting it to or disconnecting it from another fiber, especially when the laser is at power levels above 10 mW.
  • 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:

ClassDescriptionWarning Label
1This 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. Class 1
1MClass 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. Class 1M
2Class 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). Class 2
2MBecause 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. Class 2M
3RLasers 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. Class 3R
3BClass 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. Class 3B
4This 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. Class 4
All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign Warning Symbol
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Posted Comments:
Poster: Thorlabs
Posted Date: 2010-11-01 18:18:27.0
Response from Javier at Thorlabs to stibuleac: The output of the DFB lasers used in the DWDM820 is coupled to polarization maintaining fiber and FC/APC connectors. We can offer a special version with the slow axis of the fiber aligned with the slot of the FC/APC female connector.I will contact you directly for more details.
Poster: stibuleac
Posted Date: 2010-11-01 17:08:10.0
Can you provide this 8 DFB source with polarization-maintaining fiber and connectors? thank you Sorin Tibuleac
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