Vescent D2 Series Product Manual Download | Manualshive

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Absolute Maximum Ratings

Note: All modules designed to be operated in laboratory environment

Parameter

Rating

Environmental Temperature

>15°C and <30°C

Environmental Humidity

<60%

Environmental Dew Point

<15°C

Stage 2 Temperature of DBR Laser Diode

>15°C and <40°C

Laser Diode Current

180mA

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Summary of Contents for D2 Series

Page 1: ...DBR Laser Module Vescent Photonics Inc www vescentphotonics com 4865 E 41st Ave Denver CO 80216 Phone 303 296 6766 Fax 303 296 6783 ...

Page 2: ...rviceable parts inside the instrument Work performed by persons not authorized by Vescent Photonics may void the warranty CAUTION Although ESD protection is designed into the instrument operation in a static fee work area is recommended WARNING To avoid electrical shock hazard connect the instrument to properly earth grounded 3 prong receptacles only Failure to observe this precaution can result i...

Page 3: ... repair attempts made without authorization by Vescent Photonics from damage caused by operation of equipment outside of its specified range as stated in either the product specification or operators manual from damage due to improper connection to other equipment or power supplies This warranty is in lieu of all other warranties including any implied warranty concerning the suitability or fitness...

Page 4: ...s designed to be operated in laboratory environment Parameter Rating Environmental Temperature 15 C and 30 C Environmental Humidity 60 Environmental Dew Point 15 C Stage 2 Temperature of DBR Laser Diode 15 C and 40 C Laser Diode Current 180mA ...

Page 5: ...ins no moving parts or piezo electrics and is therefore inherently robust and rugged DBR lasers have 2 3 times larger temperature and current tuning coefficients as compared to external cavity diode lasers Vescent carefully controls these parameters with two stages of temperature control and a precision low noise current controller with fast servo input The DBR laser is collimated by a 0 55 NA len...

Page 6: ...DFB assy Lens set screw access Anamorphic prisms Stage 1 TEC DFB assy Anamorphic prisms Isolator Stage 1 TEC DFB assy Lens set screw access Figure 2 Exploded view of the DBR subassembly Laser pkg Feedthru TEC Laser holder DFB on c mount Coverplate w window Collimation lens Lens plate Lock Screws DFB housing Lens plate adjustment screws 0 050 Allen Laser pkg Feedthru TEC Laser holder DFB on c mount...

Page 7: ... 3 Inputs Outputs and Controls Vertical and horizontal pointing The vertical and horizontal alignment of the laser system is factory set and should not need adjustment However if your specific application requires it or the system is misaligned the DBR subassembly has adjustments to steer the beam for alignment to the spectroscopy module or other modules The beam pointing is adjusted by loosening ...

Page 8: ... isolator and other downstream modules by reducing the clear aperture requirements While the aspheres and anamorphic prisms produce a circular beam astigmatism dictates that a single lens will not simultaneously collimate both orthogonal axes of the beam with the result that in the far field the beam is again elliptical The far field pattern is the most important for ascertaining the quality of th...

Page 9: ...ser anode and the shield connects to the laser cathode This is a direct unprotected connection to the DBR chip so care must be taken to avoid ESD damage 1 4 Aligning the DBR Laser Module The module should not need adjustments but if necessary the following procedure can be used to fine tune the beam positioning 1 Loosen the three locking screws on the back of the DBR module turn past the crack poi...

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